Greenhouse Evaporative Cooler Build
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- Опубліковано 27 вер 2024
- Hey, Guys, and Gals! As promised, here is the greenhouse evaporative cooler build. Took longer to edit the video than to do the actual build. I hope you enjoy the vid, and it helps you! Listed below is the complete material list for the project. God Bless!
MATERIAL LIST
Industrial Grade 4KAY8 Cooling Pad, Kraft Paper, 30-3/4x36x4
Part# 4KAY8
$41.14 + $9.03 Shipping = $50.17 (Amazon)
NDS 4Ft. x 5-3/4 in. x 3-3/4in. PVC Channel Drain
Model# 400 SKU# 460544 (Home Depot)
$26.37 x 2 = $52.74 (Home Depot)
NDS Spee-D Channel 4in. End Cap
Model# 247 SKU# 217680
$3.59 x 4 = $14.36 (Home Depot)
Dietrich Industries 3-5/8in. x 10ft. 25 -- Gauge Steel Track
Model# 360081135 SKU# 651307
$4.48 (Home Depot)
Everbilt # 8 1/2in. Phillips Pan-Head Sheet Metal Screws Stainless Steel (100-Pack)
Model# 24762 SKU# 252719
$4.24 (Home Depot)
Loctite 0.85 fl. Oz. Plastic Epoxy
Model# 1360788 SKU# 234058
$5.47 (Home Depot)
GE Window and Door 9.8-oz. Clear Caulk Silicone
Model# GE5000 24C SKU# 362646
$5.92 (Home Depot)
Charlotte Pipe 3/4in. x10-ft. 480 psi Schedule 40 PVC Pressure Pipe
Model# PVC 040007 0600 Item# 23971
$2.19 (Lowe's)
Mueller Streamline 3/4in. PVC Schedule 40 Pressure 90 -- Degree S x S Elbow
Model# 406-007HC SKU# 187976
$0.47 x 4 = $1.88 (Home Depot)
Mueller Streamline 3/4in. x 1/2in. PVC Schedule 40 Slip x MIPT Reducing Male Adapter
Model# 436-074HC SKU# 294020
$0.87 x 2 = $1.74 (Home Depot)
Mueller Streamline 3/4in. PVC Pressure S x S Union
Model# 164-634HC SKU# 451762
$3.56 x 2 = $7.12 (Home Depot)
Homewerks Worldwide 3/4in. PVC Sch. 40 Slip x Slip Ball Valve
Model# VBVP40E4B SKU# 784893
$3.05 x 2 = $6.10 (Home Depot)
Mueller Streamline 3/4in. PVC Schedule 40 Pressure Slip x Slip Coupling
Model# 429-007HC SKU# 188077
$0.27 (Home Depot)
Mueller Streamline 3/4in. x 3/4in. x 1/2in. PVC S x S FIPT Reducing Tee
Model# 402-101HC SKU# 187933
$0.86 (Home Depot)
3/4-in. Schedule 40 PVC Pressure Slip x FPT Adapter
Model# 435-007HC SKU# 188107
$0.56 (Home Depot)
Dorman -- Help Oil Filler Tube Grommet 1 inch
Part# 42306
$2.99 x 2 = $5.98 (Advanced Auto Parts)
Raindrip 052010P 1/2-inch x 100 ft. Poly Hose
Model# 052010P
$9.97 Free Shipping (Amazon)
Apollo 1/2 in. Polyethylene Drip Irrigation Elbow
Model# AIFE12 Item# 215079
$0.99 (Lowe's)
Orbit 1/2 in. MNPT x Barb Adapter
Model# 37160 SKU# 651470
$0.38 (Home Depot)
Orbit 3/4 in. MNPT x 1/2 in. Barb Adapter
Model# 37161 SKU# 690880
$0.48 (Home Depot)
Rain Bird Faucet Connection Kit (25 psi Regulator Kit)
Model# FCKIT-1PK SKU# 527004
$17.99 (Home Depot)
Homewerks Worldwide 1/2 in. Brass MPT x MHT Quarter-Turn Hose Bibb Valve
Model# VHBQTCC3B SKU# 244231
$8.84 (Home Depot)
Viagrow Submersible Pump, 925 GPH
Model# VHL-3500F
$40.24 + $8.50 Shipping = $48.74 (Amazon)
Kerick Float Valve and Float W/Adjustable Arm
Item# 4DMD3
$13.25 (Grainger)
Trimaco 1-Gal. Elastic Top Strainers (2-Pack), To Cover Pump Inlet
Model# 11572/36WF SKU# 295859
$2.48 (Home Depot)
Defiant Sunsmart Heavy Duty 15 Amp 7 Day 2 Outlet Plug-In Digital Timer
Model# 49808 SKU# 457864
$14.97 (Home Depot)
*Minimum 9 Gallon Reserve Reservoir Required For This Build* - Навчання та стиль
I like watching people working because I'm a novice and I learn to use a certain tool for a certain job. Thank You sir.
I'm glad you liked the video! Thanks for watching!
Great video, detailed but concise explanations, great audio (thank you for doing voice over instead of live audio) and I love that you showed as much of your process uncut as possible. As someone who does projects by myself all the time, this is easily one of the best DIY videos I've seen. Thanks for sharing.
Thank you for the kind words, Morgan! thanks for watching!
Great build. We built one similar to this in our high school greenhouse years ago. Our pad went all the way acr
oss the back of the house with a awning that could be closed in the winter. Our reservoir tank was a plastic drum buried to ground level which worked out great.
+Garry Chason Thank you, Garry! Yeah, the "wet wall" is the most effective way to go for sure!
I have to thank you. This video and the material list are incredible. I really appreciate the work and ingenuity you put into this. I am building 2 10'x5' coolers right now, and I saved thousands on what it would have cost to buy from Farmtek, etc. If you're ever in Chicago, come visit our vertical farm - It would be a great pleasure to meet and talk hydroponics with you. Best of luck to you, and thanks so much again.
+UP Farms (UP Farms) Thank you for your kind words! I am glad that it helped you out! You are very welcome, my friend!
Somehow I turned off notifications from you, so I'm just now watching this. GREAT job! We just finished the 30x72 hoop house at the Itsy Farm, so now the REAL work begins! Got lotsa plumbing, beds, and things like this to build. Looking like a busy spring coming up for us!
Hey, Karl! I've been wondering about you guys! I have sent P.M's trying to make sure ya'll were alright, but no response! It's good to see you, and I hope you are doing good. Glad the hoophouse project is coming along good, and I hope to see some videos of it soon! I'm glad you liked the video, and thanks for the kind words, and for watching, my friend!
I took your wonderful video and modified it to fit my greenhouse and it works beautifully! Thank you so much for all of the detail and advice as to where to get some of the items. It looks like yours except for the water reservoir had to be placed into the floor of the greenhouse! Awesome video! Thanks again.
Good Job! Nice to see a man with experience sharing his smarts and knowledge with us! Thank you.
C0Y0TE5 Thank you for the kind words : )
You should consider selling these! Thanks for a great video!
+TheDezertRatt Thanks for the kind words, and for watching!
Man super professional job, loved the drain. I think I would use half a union for the glue in drain piece so its more flexible if you ever decide to move it
Thank you, Max! I put the union on the horizontal run after the 90° elbow. I did not have enough clearance for my location to put it on the vertical. Thanks for watching!
I have both a question and a comment. What size is your greenhouse? Knowing this and your results will help me in planning my cooler. Back in the middle 1960's my mother managed a commercial hydroponics greenhouse operation in Albuquerque with multiple greenhouses. They used the same concept you are using here with one exception. They mounted their fans on the far wall and used them as exhaust fans. creating a vacuum and pulling the cool air all the way across the house. I think you may find you got better performance if you tried this. Loved the video.
Hi, Paul! My greenhouse is 14'x20' What you, as well as some others have seen in front of the evap. pad is the electric heater. I have a 4500 CFM shutter fan at the opposite end of the building that pulls air through the pad! Evaporative cooling cannot work without expelling the heated air molecules outside of the structure! Thanks for watching!
brother.........Awesome! Thank you for sharing
Thank you, Scott! I'm glad you enjoyed it : )
Great video Keyplayr61 Greenhouse Hydroponics And Gardens! We're sending interested folks your way from our new video: ua-cam.com/video/dnLgL3KdXxg/v-deo.html
Bright Agrotech Thank you! I appreciate the link promotion in the video!
Wow!!! Amazing build, what a great idea to be able to grow all summer in the greenhouse. I calculated all the materials for this project, and I can build it for $282.17. I would say that's a small price for the benefits I will gain. Thank you for all your hard work and the complete detailed list of materials. Keep up the good work and stay inspired.
Thank You! Yes it really is inexpensive, considering if you buy one comparable to this already assembled, without the pump, and some other necessary materials that you will surely need, it can start as over $800.00! Thanks for watching, and commenting!
I also want to thank you for letting me know exactly where I can purchase all the materials for this project. I can't believe how simple you made this list, including all the part numbers, item numbers and even the SKU's. Keith you went above and beyond to help others to be able to grow all summer in our greenhouse.
Thank You for all the kind words! I always try to be as thorough as I can, so as to make things as easy for my treasured viewers as possible. I'm no where near a professional, especially in making videos, but I try really hard to make it as good as I can. A lot of work and time went in to this video, but was well worth the effort! God Bless!
COOLING WATER IDEA: Had a few more "possible" thoughts on keeping the water cool. If you had a used/cheap refrigerator you can get your hands on and put the water container in the refrigerator with drilling a hole through the side (w/out causing damage to wiring) to run pipe to pump water to cooling pad ... could it work? AND ... perhaps a separate refrigerator could be used for hydroponic nutrient liquids in the hottest part of the summer. I've been told you can grow cool crops (lettuce/greens) in the hottest part of the summer if your roots are kept cool and the temp of inside of the greenhouse was maintained. Your thoughts .... ?
It may help a little, but I think the same problem with the water exchanging faster than the reservoir could be cooled would still exist. Yes, if you can keep the greenhouse temps down to 80° or lower, you could possibly grow lettuce year round without it bolting too fast. If you are going to use the Kratky bed method, the nutrients shouldn't get too terribly hot since the sides are pretty thick, and the top is Styrofoam.
Amazing work man, looks professional to me.
Thank you for the kind words, and for watching!
Excellent project, build, & video!
Thanks for sharing!
Thank you for the kind words, and for watching ; )
Keyplayr61 Greenhouse Hydroponics And Gardens
You are welcome.
Thanks also for the detailed materials list.
I wish all YT projects were done so well!
Thank you! I feel like, if you're going to do it, you should do it right!
Wow...very clean work...love it! I need one here in Vegas now...most veggies and fruits aren't fans of 115 degree heat :)
Shawn Thank you, Shawn! It's really doing the job in my greenhouse! With the dry air you have out west, it should do a fine job for you!
Thank you so much for this video! I appreciate all the time and effort you put into making this available including the parts list - it is first class! I am going to make a version of your evaporative cooler for my workshop cooling after seeing how expensive purchased coolers from Port-A-Cool are. I also saw your other information on building a greenhouse. I am a fairly skilled handyman - but imagine I will have some questions. In particular on this project I am thinking I will have them about water flow through the media (kraft paper - which I see is about double the cost you listed) and how it holds up over time and what other options there may be - including some material I took out of an old salvaged/recycled mattress. I"ll figure out this youtube/google system and try to PM you. I like you try to save materials/resources wherever I can! Also, as a believer I appreciate your expressions of faith.....
Thank you for all of the kind comments! I really do appreciate it! Please feel free to ask any questions you may have, and I will answer them to the best of my ability! Thanks for watching!
E.H. Uwe Beltz you do realize that the video and materials list was already over 3 years old at the time you posted your comment and there aren’t many things in the forestry products division that haven’t doubled or tripled in price in the past few years.
I’m sure you didn’t mean any harm from it but the way your comment comes across and is interpreted by others is thane wasn’t being completely accurate with the prices he posted for the cooling pad and that it was double what he posted.
I’m sure he posted exactly what he paid for all the materials and this was an increase in product cost over 3 years. Did you see what plywood and OSB prices did during that time? 3 years ago I was paying $4 & $5 a sheet for OSB and today it’s nearly $16.
Just please keep this in mind sometimes because other folks don’t understand as well as some of us do and will misconstrue your comment as him not posting accurate info.
Take care and hope your system turned out well
Nice job .
Thank you for watching!
Have watched this many times over the past few months. Trying to figure out if I want to build one now and cut the back out of the cover on the greenhouse I have now or wait until I need to replace that cover with greenhouse plastic and frame that back end. You seen my setup so you know what I am dealing with here. Not sure how well this will help me with all those windows the old cover has. Thank you for your thoughts and ideas.
I will help tremendously if you can close those windows! If you are pulling air from any other place other than the cooling pad, you are wasting your time. If you feel that the cover is not going to last too much longer, and you cannot close the windows, you may want to just wait until you re-cover it. I also recommend that based on the size you said it was, I would make it twice the size of mine! I need to make mine that large in order to have better control of the temps, plus I know that the current pad is not big enough to support the CFM's of my cooling fan, because the shutters in front of the fan won't open 100 %, unless I open a window or two! That tells me that it is not as efficient as it could be, even though it's doing a good job of bringing the temps down! I just wanted to share that with you, since our greenhouses are close in size!
Thanks buddy. Think I better wait until I replace the cover. I can close those windows but would have to cut the back out to put the cooler in. I'm sure when I put a razor to it then it would split the whole thing open. Pretty cheap thin cover on it.
This is a very nice build! Definitely informative! I agree very professional finish. Thanks for the vid.
Thank you for the kind words, Philip! I hope it helped you out!
Thank you so much, great video
Thank you, Colvin! Thanks for watching!
I like your build, it was well thought out. Thanks for sharing.
You're welcome! Thank you for the kind words, and for watching!
Really awesome build! God bless you!
+Kevin Wright Thank you for the kind words! God Bless you as well : )
Great Job! Thank very much for the info and the material list!
Thank you, Gregor! I'm glad you found it useful! Thanks for watching!
Thank you!
Thank you for watching!
Cool. Looks and works good
Thanks, Jay! yes it really does!
Thanks for the Video ,It was a Quality work.
Thank you for watching!
*Good job.. thanks so lot bro.. from Indonesia*
Thank you for watching!
amazing.. you have god blessing true green revolution
Manish Shrivastav Thank you very much!
God bless you
God bless you as well, and thank you for watching!
We're in eastern Oregon (high desert) I'm thinking of doing this in our bathroom window. Call me crazy but maybe using the reserve tank on the toilet.
william brown That can work ; )
I'm in east TN, so I assume our humidity can't be much different from GA. Have you you heard of any success using this without outside air flow in small greenhouses?
David Sparks I don't know how it would be possible, since air needs to be pulled through the pad, and expelled outside in order to be effective. The plants in the greenhouse need fresh co2 from outside as well!
I think it might be easier to drill through for the small hole and expand the small one to the big one, easier to be sure they are concentric.
It could have if I had a the right size unibit!
A very good design. It may be of value to add white viniger to the water to suppress the growth of algae and fungus.
Thank you! Yeah, that would probably work for the algae, but I don't know about the smell that it would produce ; ) Thanks for watching!
Thats a beautiful piece of work mate... I would love to have one as I'm not as dexterous as yourself. I'm living off-grid at Angledool NSW where the temps get to 45c for weeks on end. We just got a bore water system for our village so I have enough water for an evaporative system.
Big pass on my appreciation.
Thank you! Thanks for watching!
Does the water in the reservoir get hot? Have you ever added an ice block to the reservoir? I ordered 2 of the cooling pads and plan to eventually get 2 more, I have two 3' x 6' windows in my greenhouse I plan to cover.
Hi, Wayne! Not really, I have it in a location out of the sun, and with the constant replenishing from the float valve, it seems to be just fine! If you are concerned about the res. over heating you could always insulate it, or make it out of an ice chest! Adding ice would help, but become cumbersome!
8 gallon jugs of water. Freeze them all. Take 4 and put in water. When thawed out replace with other four jugs and refreeze first 4 jugs. I would assume colder water might enhance the effects by 5-10 degrees or so.
Another idea I had was of another vid I had seen. What if u routed copper tubing around and in front of fan unit while circulating cold water through and back around and over filter element. Double whammy cold air. Cold water....cold evap....cold coil....boom. I have the idea in the works....I'll keep UA-cam updated on progress.
John Delgado We also have to remember not to forget what evaporative cooling is. Not just cooling the air entering the greenhouse, but releasing water molecules into the air that pick up heat, and are expelled out by the exhaust fan. Kinda along the same lines as misters which perform the same function!
Wow, what an excellent video.
Just wondering how big your greenhouse is. I am putting my 40x20 greenhouse together and my plan was to have 2 4x4 builds in the side wall. It was great to find your video because I have been struggling with quite how to put it together as my idea is very close to what you have already created. I think the main thing is to have enough cfm pulling air out of the opposite end wall. What do you think? I'm in Prescott Az. It gets in the upper 90's in the summer and we get as low as the single digits in the winter with snow.
+Patrick Wilcox Thank you, Patrick! My greenhouse is 14'x20'. My fan pulls over 4000 cfm, and I honestly could have used a bigger cooling pad to take advantage of that! I can tell that the fan is not pulling enough air because the louvers are not fully open, until you either open a window or the door, then they are wide open! With the low humidity that you have in AZ, evaporative cooling should work great for you! The lower the humidity, the more effective it becomes ; )
Good and very nice work sir, but may i ask where is the fan sir used to drag or pass air in the cooling pad. Bacause it looks like there is no fan
Hi, Rene! There is a 4000 CFM exhaust fan on the opposite side of the greenhouse that pulls the air through the cooling pad. Thanks for watching!
Would it have worked better by putting your side pad covers inside of the bottom tray or gutter or is it holding up ok as you did it?
Chuck
+Fensterfarm Greenhouse The sides are working out fine! The only problem that I've had with it is the small holes that I drilled in the gutter get stopped up over time so they should have been a larger size. Other than that, it's been working great!
@@keyplayr61greenhousehydrop14 It won't matter how big the holes are when it comes to trash, the resivour collect trash from your surrounding and the pads deteriorate over time. Best advice is get you a piece of copper wire that fits the holes, open your end drain valve, punch all the holes out, turn your water back on and let it drain through the pipe and push all the trash you got out of the holes out the end of the pipe. when the water looks clear again, turn off the valve and you are good to go for a while. At some point you can make the holes too big and lose water pressure, so I'd be careful about increasing the diameter of the holes.
Move your fan to the entrance of your green house so it is blowing air out. This will draw more air through the evaporative cooler as its easier to create a vacuum to pull air through the cooler then if it the fan is right next to it sucking in air. :)
That is the heater! I have a 4500 CFM shutter fan over the front door on a thermostat.
Oops! Never mind, you know what you are doing! I am going to be trying an experiment with my cooler. I went camping in the desert when it was around 101 so I placed a bag of ice on the bottom, and then a block of dry ice, and then a bag on top of that. The water that melted became a solid block of ice - around - the dry ice. So I will be attempting to replicate this on a smaller scale by weighing down a smaller piece of dry ice in a milk jug to have it freeze solid with the dry ice inside. Of course this is cumbersome to add and replace in the reservoir as you mentioned but I enjoy experimenting.
There is nothing wrong with trying new things for sure! Let me know how it works out!
Great job, where do I pick up the tin that support the sides.
Thanks, Marvin! You can get them at Home Depot. They are steel framing studs.There is a complete list of materials that was used, along with where to get them in the description box below. Thanks for watching!
Thank you so much for replying sir😀
Hello there, great job, and video! Kudos! However, it seemed as though the fan was perhaps too small... for the size of the pad. I was wondering what the fan you used, it's make and model, and why you did not use a larger one, closer to the size of the pad? I presume you had a reason. Perhaps that would make it too cool?
Sargent Pepperland Thank you, Sargent! Actually, it the other way around! The pad could actually be double in size! The fan is pulling more air than the pad can pass through. I know this because the shutter on the fan side is only about half open. I can open the windows on the pad side of the greenhouse, and the shutters will open all the way. It's doing a good job as is, so I'm not really concerned that much. The fan is model# VPES20 from Greenhouse Megastore, and pulls 4,220 CFM.
If its 102 outside how cool can you keep your green house and how big is your green house, thank you for sharing in such detail amazing 😀
Hi, Cindy! At 102° it would probably be around 92-95° at plant level. It would also depend on the relative humidity as to how low it is able to drop the temp. My greenhouse is 14' x 20' x 9' high. Thanks for watching!
Yeah, lol...It's definitely hot, and very humid where you are! if you are not going to be growing vegetables, or tomatoes, and the like, in the heat of summer, with some good airflow, you should be ok. Tomatoes don't pollinate well under extreme heat, and humidity. If you can keep the high temps under 96°, you should be ok. There are also heat tolerant tomato varieties bred for Fla. that you could try as well.
yeah Im in florida and this summer was beyond
hot
great work
can you please explain that , will it work fabulously @49 celsius. and inside room where ventilation of air is low & high humadity place ??????
+Afzal Khan Hi, Afzal! Thank you for the compliment! In order for evaporative cooling to work, you must have air being pulled from outside through the coil, pass through the entire building, and then expelled back outside. The water molecules pick up heat from the air, and the exhaust fan will remove them from the structure.
Thanks friend
You're welcome! Thanks for watching!
Impressive build. It was nice talking to you yesterday. I'm a jazz lover myself. Who are some of your influences on the keys?
Hey, Trace! Thanks for the compliment! Yeah man, I really enjoyed the hangout with you guys! My favorite keyboard players, hands down would be Tom Schuman of Spyro Gyra, Jeff Lorber, Chic Corea, Jazz Hammond organist, Tony Monaco, and Joey DeFrancesco. I could go on, but these are my favs!
Opening with a blazing Limehouse Blues. There's other live videos and they did a couple cd's too.
Why such a small fan for such a large cooling pad? Wouldn't it be more efficient to enclose the output end with the fan built into the enclosure?
You are looking at the heater. There is a 4400 CFM shutter fan at the opposite end of the greenhouse that pulls the air through the pad to the outside.
Keyplayr61 Greenhouse Hydroponics And Gardens
Ahhhh... got it mate. Brilliant setup.
I don't quite understand, i thought you were supposed to push the evaporated cooled air into the area you are cooling, not outside? Maybe you have a better idea, but im so confused when it comes to evaporative cooling. Otherwise incredible setup, I'm in awe of the seamless quality of the design and the simplicity. I also looked online saying evaporative cooling is the only way(or the last step)scientists use to reach super cold temperatures in experiments that hvac cannot cool to. Im so interested in evaporative cooling.
Mr.Papadopolis I’ve got to say that I completely agree! Pulling the air through the pad and then outside seems to be opposite to what is needed!
Keyplayr61 Greenhouse Hydroponics And Gardens oh shit I and im sure many others assumed the heater to be the fan,lmao. Nice work.
So, I've watched this video SEVERAL times. I've already purchased everything to build this wet wall. I'm wondering, why did you put a valve on the opposite end of the water input side? Before I build this I just need to make sure I'm on the same page. Thank you so much.
Hi, Dwane! The reason for the other ball valve is to flush the line in the event that particles get into the spray holes. Thanks for watching!
An excellent idea!! I don't know why I didn't think of that. We are finishing up on building a greenhouse. My wife's channel is Garden Rudiments. Somewhere on there is the greenhouse project if you are interested. I'd LOVE your opinion.
I'll check it out. @@dwanekimmel8571
Can simple cooler convert ed into evaporative coolers
I'm not sure that I understand you question?
Nice video. Thank you
Thank you for watching!!
You went to a lot of effort to build a really good cooling pad but I don’t understand why you don’t have a much larger fan in front of it with a shroud to make all the air that the fan is pulling come through the cooling pads. The small fan and the gap between the fan and the cooling pad is allowing a lot of warm air to circulate into the system.
The thing in front of the cooling pad is the heater. I have a 4500 CFM cooling fan at the opposite end of the greenhouse pulling air through the cooling pad.
Very nice
Thank you very much!
Great video, you are a Martyr!
I was wondering if you've noticed an mold or algae build up anywhere, cooling pad, reservoir etc. and have used bleach in the water to clean things up? We used to run bleach in an outside fountain from time to time and it seemed to work out pretty well...
Thank you, Jeff! I don't have a problem with mold or algae, primarily because I use a product called cooler cleaner twice per year! It has a mild acid, along with wetting agents. It seems to do the trick! I wouldn't use bleach for fear of ruining the kraft paper coating!
I'm very confused as to why you are gluing PVC to PVC and using epoxy and not PVC cement?
As a former 30 year plumber, PVC glue is used to solvent weld snug pipe joints together. It is not strong enough to support a butt joint with any stress on it. That's why I chose epoxy instead. All pipe joints were glued with PVC glue.
Damn, you delivered on this one.
Great video! We will be building a couple of these 3' X 4' to cool a 16 X 24 hoophouse. The one question I have is, what are you using for a pump? Thank you.
PipeRain Thank you! It's a Viagrow submersible pump that is listed in the description box of this video, along with everything that you would need to build this pad, including prices, and where to buy ; )
Keyplayr61, thanks for sharing. I truly like the neatness and functionality of the finished product. It's been almost two years since you posted the video. Have you made any changes or discovered anything you would do differently?
+Smotech Thank you for the compliments! The only thing I have discovered as far as my application is that I would like it to be twice the size that it currently is. Not that it's not doing the job, it's just that my 4500 CFM cooling fan is not able to take full advantage of it's capabilities! In other words, it's only able to pull about 3/4ths of its CFM air flow! I know this because the louvers on the fan itself is only 1/2 to 3/4 open. When you open a window, the shutter opens fully. So that tells me if I increase, or double the size, it REALLY ought to cool like gangbusters ; )
Glad to hear the design really works. The size you displayed should be plenty for me. May I ask where you got the plastic trench drain? Again, thanks for sharing.
Smotech You can click on the show more in the description box, and it will give a complete material list, including place of purchase, and prices paid ; )
When you say clock it to 11:30 does that mean the holes on the pipe should be facing upward?
That is correct. You want the flow to the rear of the unit because of the force of the air being pulled through the coil, so it won't spew out of the front.
Keyplayr61 Greenhouse Hydroponics And Gardens 💚 thank you!
Thank You :) Trying solar on it.
+rainyday Welcome! Thanks for watching!
Great project - just what I was looking for my dIY greenhouse in South Mississippi. does it matter alot the position or height of the cooler on the back wall of the GH? i've read that is best to cover the entire width of the GH? Do you/anyone have experience whether width or height matters that much. Also, have you done any passive GH heating projects. like solar, etc?
Thanks for posting .
Thank you! Yes, it would be best based on my experience to make a complete wet wall, or in my case, I am going to make mine twice the size that it is now because it is not passing enough air through the pad to match my fan's CFMs. I know this because the shutters in front of the fan will not open completely unless you open a window, which is defeating the purpose! As far as height location, I feel that it should be in the center of the wall, which would put it more at plant level, thus more effective. I have not tried any passive heating, or the like. I would like to switch over to natural gas for heat when funds allow, because I can run a 40,000 BTU gas heater for a fraction of what the electricity is costing me to run an 18,000 BTU electric heater!
very well build...... but how big an area does it manage to cool & within how much time
Thank you! Well, my greenhouse is 14'x20'x9' tall, and it will pull the temps down 15-20°F very quickly, depending on the outside temps, and humidity! Very pleased with the results. It is expandable to cover as much area as you need!
I am going to take property soon for business & i need to keep the room temptaure at around 15-18 degrees..... u suppose this will do the trick... expcet I will have to make ducts
santosh shetty The thing with evaporative cooling is that it works on the principal of 1, cooling the outside air that passes through the coil, 2 the air inside of the building is filled with water molecules that attach itself to heat, and are then dispersed via the cooling fan to the outside of the building. Therefore you could not treat this like an air conditioner that recirculates the inside air with duct work because the whole principal of how it works would be lost. Air needs to be pulled from one end of the building to the other, through the coil. I hope you understand what I mean.
Is it necessary to regulate pressure with the faucet connection? I have never done that before.
I was thinking of putting a kick off back into the reservoir to control the pressure. What do you think?
No. It is not necessary to regulate the water pressure. I just knew that 65 psi wasn't needed to keep a reservoir topped off, and considering the plastic float valve, and the poly pipe that was used, I thought it would give me some piece of mind while unattended by not putting undue stress on the components, since I kinda went on the cheap for them ; )
Have you had any rusting of the side panels>
The side panels are galvanized so they hold up pretty good
Wow, this is great, Im going to copy this, just wonderin, how do you evenly distribute the water to the cooling pad, also the amount water to the pad so it can quickly evaporate, do i need a timer , what else should i do?
Roger Flores Water is distributed via the spray bar at the top, which has 1/8" holes spaced 1" apart, as described in the video. There is a ball valve installed in the feed line to adjust the water flow amount so that it is keeping the pad wet, but not overflowing. You can use a timer, but it's not ideal. I use a separate thermostat for the cooling pad v.s. the cooling fan thermostat. I have it set to come on at a temp higher than the cooling fan so that it will shut down before the fan does, in order to dry the pad before nightfall.
Keyplayr61 Greenhouse Hydroponics And Gardens Wow thanks sir, God bless, very helpfull, its now really hot here in the Philippines special during summer, about 37-40 degrees, nice video, thanks again for the info :)
Roger Flores Thanks, Roger! Good luck with your project!
Would a larger fan process more air and cool better?
indypersonalinjury The fan is over 4000 cfm, which is more than enough volume of air for that pad. I actually need a bigger pad so the fan can pull to it's full capacity!
I'm guessing you are using some shutters or louvers on the end this is installed on. What size is it/are they?
Yes, It's a 30" motorized shutter.
Sweet build, Appreciate the video. What evap pad was that? Seems most pads here go with a model number for a specific cooler. So curious which one this is, if you can recall.
Thanks
Hi, Eli! You can check the part number in the description box below this video where all of the parts list for this build are located, and that should give you some info. Thanks for watching!
awesome job. I seen you used a pneumatic cut-off. what compressor can I purchase that will run one if you don't mind? I'm new to compressors and just need one that will run a cut-off, air up tires, smaller stuff.
neopaltoys Thank you! Mine is a 6HP, 60 Gallon tank. You just have to get one that will keep up with the air volume consumption of the tool that you are using. Just check the specs of say the die grinder, or cut off tool, and make sure that the compressor that you get will supply that need e.g. cfm, @ 90 psi etc. Die grinders are among the most air consuming tools there is, so if your compressor will run that, it will most likely run anything you want!
Keyplayr61 Greenhouse Hydroponics And Gardens thanks so much!
very nice video, i also making some project like this i use cardboard as medium
Thank you! Thanks for watching!
Did I miss the parts list?
Robert Madden Click the show more in the description box, and you will see it.
Ahhh, didn't know you could do that. Thank you so much.
I'm in north ga. where dd you source the pac drain material? seems home depot and Lowes does not carry such. may be a bad search? much appreciated
Hi, Josh! The drain troughs came from Home Depot. They were in the garden center close to the fence materials. If they still carry it. Mine came from the Fairview store near Stockbridge GA
Very Informative. How thick were your cooling pads, 2",4" or 6"?
Thank you, Steven! They are 4" pads
To squirt epoxy or bondo just where you want it: Take a small plastic bag (sandwich bag with no pleats) mix up your two part stuff, put it in the corner of the bag and snip off a tiny piece of corner. Voila'
Thanks for the tip!
Hi. Amazing video. Where you get the plastic gutter?
Thank you! I got it at Home Depot in the garden section. The entire material list is in the description box!
😂16:42 same here I use KY for all my " ass embly "
Would this work in my garage to keep it cool? I have a well insulated 26x24 garage heated, no AC however. If so I will do it!
It should work fine, as long as you have a shutter fan big enough to pull the outside air all the way across the garage!
Depends on where you live. You need a dry climate to really take advantage of evap cooling. They work great here in Colorado as long as you do your basic maintenance and winterize them.
what pad is that you are using? thanks for the build video, will likely nesx to do this also. Do you have roll up sides?
Hi KC! If you will look in the description box under show more, there is a complete material list, including the pad! No, I do not have roll up sides. Thanks for watching!
What kind of drains are those looking to set one up in my greenhouse!
mark reilly Hi, Mark! I'm not sure if I understand the question. Are you referring to the PVC couplings, and pipe?
Keyplayr61 Greenhouse Hydroponics And Gardens I was talking about the spee-d channel drain but I got that at home depot the only item I can't find is the metal piece you used for the side walls
It is actually the top or bottom plate that would be used for metal framing studs.
So I see the setup cost you about $250, that is without the fan i belive. Is it good enough where you wont need to have an AC unit as well. Mybe if I had a few of these. Im just thinking maybe spending 500 on an AC is bette. Any idea if I have a point?
Brandon Okman SO the fan isnt hooked to the macking at all its just blowing air out of the room and in turn pulling cool air through
Brandon Okman Hi, Brandon! AC simply won't work in a greenhouse environment! It would work itself to death, cost hundreds to run, and not supply any fresh air, or co2 for the plants! You would not want to recirculate the inside air, unless you want to evenly redistribute diseases!
Brandon Okman Exactly! Evaporative cooling means just that. Outside air is pulled through the water coil, molecules pick up heat from the air, and expel it back to the outside, thus lowering the greenhouse temperature!
I am trying to adapt this for my workshop in Tucson... Do I understand correctly that you have a 36 in exhaust fan that then pulls cool air through the pad? Since your greenhouse is probably airtight, this would make sense... My workshop is not, being a steel building with no insulation. If this is the case, I would have to build a more conventional EvAP cooler with the fan pulling directly from the pad. Do you have any thoughts, ideas?
Thank you, great work.
jim heal Hi, Jim! The idea behind evaporative cooling is to pull outside air through the cooling pad, and the moisture molecules pick up heat from the air, and expel it to the outside, thus cooling the inside air temp. Of course this is in a greenhouse situation. You could build this unit as a portable cooler, aka "Port-A-Cool" which sounds like what would suit your needs, and works really great, especially since it recirculates the inside air, and cools it rapidly!
I was happy to find your video today as I need to build an evaporative cooler for a 24' x 36' greenhouse. However, for whatever reason, the parts list for the project did not appear at the end of the video. I have no idea where the grey parts come from that are used to surround and support the cooling pad. What is that assembly called and what kind of stores sell it? Thank you.
Richard
Look in the description box of the video where it says show more, click that, and you will have what you need ; )
At frame 23:37 I saw a sign that reads, "A complete material list located in the description box of this video." So the question is...where is the description box? Is it a link that is embedded in the video itself? I have scrolled back and forth through your entire video, but I can't find where this description box is located.
The description box is located just under the video screen. Start the video, immediately scroll down. You will see a short description of the video, along with a box at the bottom that says show more. Click that and the list is there.
Thank you. I found the materials list. Let me make sure I understand the concept. A timer signals the submersible pump to start the flow of water. You said you were going to install a thermostat. So I assume the pump comes on when the greenhouse gets too hot. I also assume that the rate the water flows must be sufficient to keep the pads fully saturated, but also at the same time replenish the water that that is lost through evaporation. So water is continually flowing into the reservoir from two places...in your case the water source through the black PVC and the drain from the evaporator. Is all that correct so far? Secondly, how do you make the evaporator and the exhaust fan work together in the proper sequence...do you use some kind of simple controller?
Yes, you will have to tweak the inlet ball valve a few times to get the correct amount of water flow to your pad or pads. Keep in mind that if you build a bigger system than the one shown, you will have to increase the drain size. Also plan on providing constant fresh water to your reservoir. I started off with a timer for the pump that would bring it on at the time I figured the greenhouse temp would exceed the normal fan, and shutter capabilities, which worked well, but I wanted it to be a little more accurate so I did wind up installing a swamp cooler thermostat (Dial 7625 EZI-STAT controller SKU-179857 at Plumber's Stock online for $27.22 plus shipping). I am currently using this in conjunction with my regular fan, and shutter thermostat since I wanted the fan to come on before the evap was needed to limit unnecessary use of the pad, and so that the evap pump would cut off before the fans so that the pad could dry to help prevent molding, and slime buildup. You just simply set the evap thermostat a few degrees higher than your fan stat. You can use this controller as the sole cooling thermostat if you want. It has a pad pre-wet feature, and will also operate a two speed fan!
Are you in a humid or dry climate?
Humid in summer dry in winter
Thank you, by chance you have a pays list?
Robert Madden ????
Hate auto correction, sorry. I meant parts list
Are you pulling air from the outside or, using air in the greenhouse?
Hi, Chad! Yes I am using outside air, since you cannot recirculate inside air in a greenhouse for many reasons, especially replacement of Co2 that the plants need for proper growth! Thanks for watching : )
Thanks! The cooling pads came today but, I am not exactly sure what size I should build. My greenhouse is an 8x10 with Triple walled polycarbonate. I'm in Indiana and it can heat up to 100+ quick which also drops my humidity. I'm hoping this will help but again, not sure what size system to build. Any thoughts from your experience?
With just an 8x10 the 30"x36" should work fine, which is the one that I built in the video. With my 14x20, I really need twice the size that I am using now, even though it makes a big difference.
Thank you very much for this valuable information. If I may ask, how effective is this size cooler with your greenhouse and what are the dimensions of greenhouse?
Trying to figure out what I need for mine. Hopefully this will work for me during our hot summer months in Pensacola Florida
+Robert Madden It actually lowers my temps 10-15°, depending on the humidity. My greenhouse is 14' x 20' x 9'. Due to the CFM of my cooling fan, which is 4220, I could use 2 of these, or 1 twice the size would be much more effective!
I'm living in Pensacola Florida and believe your in Georgia somewhere unless my memory fails me which it does a lot these days. Surely there can't be that be of a difference in humidity between out locations is there?. What do you think?
Probably not a whole lot of difference, with the exception ours varies in amount more so than Fla.
Well then I suspect this will work with me as well. Mine is 12 x 40 x 6.5. Technically that fan you have will push air in mine as well. I calculated 4100 CFM needed unless I did something wrong.
nice job other than the k y jelly
Nelson Dacosta All a matter of where your mind is ; )
A have only one question, how you service this unit?, I'm talking about the pads.
There are a couple of ways to clean the unit. I installed it with unions to make it easy to disconnect, and take down so you can spray the pads off, and anything else you want to service. I have also used liquid pad cleaner in the water reservoir, following the instructions on the bottle, with good results!
Does the water in the reservoir drop in temperature as well ? especially if the reservoir is insulated.
RHEAD100 I would imagine so, since it is passing through the cooling pad. I have not tested it though.
Keyplayr61 Greenhouse Hydroponics And Gardens In my younger days I worked for a company and we built evaporative coolers and installed them on Sears stores. The water in the reservoir was piped into the building to a coil and fan. This way we did not put a lot of moisture in the store.We called them two stage evaporative coolers.Actually ; to be more specific , there was a coil in the reservoir as well . This was filled with water and antifreeze and the actual water in the reservoir never went into the building and in the fall you only drained the reservoir , not the entire system.
RHEAD100 Yeah, similar to the swamp coolers that were used in commercial kitchens years ago, where they had a rooftop mounted unit that was piped from the inside with a solenoid valve to a fresh water supply, and another to a drain so that when you selected winter mode, it would automatically drain the system, but still provide fresh cool air when needed.
What cooling pad did you use? Part #, where you bought it...
Hi Joe! Just click on the show more button in the description box, and it will give you a complete material list : )
I WANT 3 OF THEM
3 will get you some good evap cooling for sure ; ) Thanks for watching!
What kinda temp drop are you getting and what % shade cloth are you running? I have 2 GH one 55 and one 100 I need to do this to here in SC!
If the humidity is around 40-50%, I can get about a 20°F drop! Here lately, the humidity has been 70-80%, so not as much! I am really undersized for the CFM that my fan is capable of, since the shutters won't open all the way, unless you open a window, or two which defeats the purpose. I am planning on expanding mine, but it won't be an easy task with the gambrel style of my building! I believe when I do, the temps will be way better!I am not running any shade cloth at all. My greenhouse is not full sun all day. Probably 7 hours is all I get.
What kind of blower did you use?
Air is pulled through the cooling pad from the opposite end of the greenhouse by the main cooling fan
@@keyplayr61greenhousehydrop14 ah, as in the exhaust fan. How big is the exhaust fan?
@@EKowallis The fan is 24 inch with louvers
@@keyplayr61greenhousehydrop14 hum I have a 12 inch and it's not enough. Maybe I need to get another or a bigger one.
what was the size of your green house?
+Thomas Tucker 14' x 20' x 9'
Cool info do you make kits ?
No, I don't make kits, but everything that was used in this build is listed in the description box of this video. Just click on more info. thanks for watching!
Its doesn't matter who does what, there will always be someone out there that will critize how you do the work, and usually the one that critizes doesn't know the first thing about what he is critizing about. Keep up the good work, seems to cool your green house so whats to critize about. LOL
Thanks, Aida! That is very true, but I just try to explain how it all works to the best of my ability! I also post the end result, so they can believe whatever they want, but I know what works ; ) Thanks for watching!
do you have roll up sides on your greenhouse?
Hi, Cody! No, I chose not to do the roll up sides to cut down on the pest problems, and since I knew that I was going to run an evaporative cooling system. Thanks for watching!
The Pad is too big for the fan. and the fan is too small for pad.
Actually, the pad is NOT big enough for the fan! It needs to be twice the size that it is now.
Keyplayr61 Greenhouse Hydroponics And Gardens I wonder if enclosing the front(or back) necked down to a squirrel cage in reverse would draw more volume out of it. Is it better to pull or to push air through to get cooler temps? Regardless, amazing work man.
What kind of fan is that
Keyplayr61 may I commend you on an excellent video. In your estimation about how much do you think a temperature drop would be achieved on a 32 degree Celsius day in the tropics. Much thanks for your reply.
+adrian levy Thank you for the kind words! Depending on the humidity outside, and the size of the greenhouse, It should lower it by 10-12°. It will vary under different conditions!
+Keyplayr61 Greenhouse Hydroponics And Gardens ....in my place its around 42 celsius in summer and around 50 humidity.. how many piece would i need to cool my greenhouse with an area of 30x30ft? your reply will be greatly appreciated.
JN NAjAD You probably need to do a wet wall. Greenhouse megastore has a cooling pad calculator on their website that will more accurately tell you what you need to know! You can build my system as large as you need it , since it's expandable : ) If I had to guess, you would need one at least 3 times the size of mine.
+Keyplayr61 Greenhouse Hydroponics And Gardens thank you! been having this problem yearly. once again thank you!