I Need Some Mini-Split Help...
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- Опубліковано 7 вер 2024
- In the past y'all have told me that if I have questions or need help with something to ask, so that's what I'm gonna do. I need some help looking for a mini-split for a large room. Everything I've seen seems to be based off square footage to calculate the btu size, but this room has a huge vaulted ceiling. Anyone ever put a mini split in a large room like this?
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*** Disclaimer ***
Please remember, I'm just a DIYer like you. Don't take what I'm doing as gospel truth, it's just how I'm doing things. If you're unsure of how to do something, look into hiring a professional or at least consult with a professional to determine the correct way to do things.
A 24k mini split would work fantastic in there.
@@GavinStoneDIY thanks Gavin!
Same problem we USED to have in our 20 x 20 x 11 ft greatroom addition. The existing 3.5 ton system couldn not do much for the additional space. Mr Cool 24k unit for the remedy!!!! Life is bliss! --Rich
Go big lol! At least a 24k and I think it will work well. My buddy is using the 24k for his entire house so this room should be fine! The eg4 24k is for up to 1350 sq ft and even with that height you won't be over that.
@@rodneyhunt thanks!
I have installed 10 mini splits, so far in the last few years. If I had that room, I would install two 12,000 btu units basically at two end points. I had very good luck with Senville mini splits, having them at two different locations would cool and heat the room better!
@@stevedutcher3875 Kool idea with the dual minisplits. I like the fact that if one goes down you only loose 1/2 your cooling power.
@@stevedutcher3875 Can you buy the Freon without a license ? I was a licensed electrician 25 years ago and have a business license but could not buy freon unless I applied for an environmental permit. I tried a few years back when I was looking at the NON- DIY minis splits. Is this still the case to buy freon? I bought all the tools required to install the line sets but was halted due to freon so went DIY. I would love to service the mini splits if they ever need
@@stevedutcher3875 someone else mentioned this as well. Something I never would have considered. Thanks!
Normal height room is 8'. 14 divided by 8 times whatever the calculator gives you for your x/y dimensions.
I'm cooling a room 24x32 with the EG4 AC/DC 12000 BTU mini split. Do not have as high a ceiling as you do, but like the guy says, cold air sinks. This little unit is knocking it out of the park as far as cooling goes. 95- 110 out , 68 inside. Can not describe how happy I am with this unit. Off grid with a little 12v system. Looks to me I would mount the indoor unit right above your TV, shooting COLD air into middle of the whole room.
@@brocke.harris172 awesome! Thanks for sharing your experience!
I'm using the EG4 12000 BTU hybrid mini split on a room exactly half of what you have, high ceilings and all and it does a great job. So I'd go 24000 BTU for that room. I'm in the USVI, concrete walls and no insulation anywhere.
I'll add another successful EG4 ac/dc story. My traditional carrier 3 ton Central Florida 3000 square-foot home is now far less toasty due to the combination of a 24k and 12k effectively chilling my (within envelope) close cell spray foam attic 24/7 to ~65f, effectively chilling my home from above through the drywall. My ceiling temperatures are typically a 5 to 7° delta to the floor temperature which creates a convection effect with cool air falling and warm rising. Friends will come over and be mystified why super cool air is moving around them with no ceiling fans and very low static pressure central ventilation.
@@slugbyte thanks!
@@jtmg11 that’s awesome! Thanks for sharing!
Hi. Ive just installed a Mitsubishi electric heat pump in a room almost the same size. I chose a floor mounted model as we use it for heating as well as cooling. It's got a cooling capacity of 4.5 kW and heating capacity of 5.4 kW and so far have been delighted with it. It's unbelievable how little energy it takes. I really like the floor mounted option even for cooling as it cools down the room from the floor upwards. It's whisper quiet too. It runs perfectly from my multi plus 3000. They are not the cheapest option but well worth it, I think.
@@simongrace2538 nice! Forgot about Mitsubishi. I’ll take a look. Appreciate it!
Hi been watching your channel lately. I been running 2 24k btu minisplits with a eg4 6000xp inverter, the temperature in the summer are between 100° and 110°. In order to calculate what size minisplit you have to take into account where you are located, but a 24k btu minisplit should be able to cool your room. Just make sure that if you buy a traditional minisplit that it is an Inverter time minisplit.
@@manuelflores5869 thanks for the info!
Two 9K’s - 30.5 SEER Gree Sapphire would be plenty. Mount them opposite each, but diagonally so that you get a CW air circulation (promotes clear weather, blue skies under high pressure). 250-750W each in cool mode. Double that for heat mode.
If someone smart doesn't reach out to you by noon on Saturday, reply to me and I'll see what I can do. I've done BTU calculations before and they helped me get close to what I needed to look out for. Happy to give you questions that you need to be asking yourself when considering, placement, power options, parts, which mini-split, help needed and tools.
not sure how to give you my contact information which the whole internet seeing it.
@@DuncanCunningham thanks Duncan. You can always email me. That works best for me.
I'm going to provide a controversial opinion here. Don't use a mini split. Use two!
Also don't worry about sizing. A 24k unit would be more than enough. But instead of using 1 24k unit. Use two 12k units.
Mini splits have a great turn down ratio but much of the time one unit will be enough. So most of the year you can run 1 unit but the second one can kick in if it gets really hot or really cold.
Also, you have redundancy. If one goes out you still have one working and it's cheaper to replace a 12k than it is to replace a 24k
Finally you could even put the heads on opposite sides of the room for more even distribution.
You can get two 12k monitors for less than $1400.
Do not mount on the wall. They have an audible vibration.
@@jl9678 I wouldn’t say that’s controversial. It’s actually a very interesting idea! Thanks!
I you said nothing about insulation, which is a factor. A unit too big will cool off quickly and not wring out moisture, resulting in high humidity. I installed a 12K EG4 solar hybrid heat pump which works good but thermostat overshoots. The Airspool solar hybrid mini split is Energy Star so qualifies for the 30% tax credit. The solar aspect adds some fun. My suggestion is 12k Airspool with solar panels, mount the inside unit above the TV. SanTan Solar as a vendor. You can run this unit in solar only mode if you want to play with energy cost. My Victron charge control works great now, thanks for your help.
If the insulation in that room is anything like the rest of the house, it's probably poorly done with lots of air gaps.
Thanks for the tips on the different units! I'm still trying to decide if I want to have a dedicated DC system for the mini-split or just use the power from my main solar system. It'll probably be a whole lot easier to just use the AC power from the solar system so I don't have to figure out panels close to the mini-split unit outside.
Glad the Victron CC is working well for you! Those things are beasts!
Depending on if it will be used more for heat or a/c should determine how high up the wall you mount the indoor unit 🤔 cold air drops while hot air rises
@@tjmooney4181 hard to say because right now if we want to use at all during winter, we have to run that fireplace to get it up to temp. We’ve never been able to use the room for any season straight through.
My 12k minisplit in our small 2 story cabin ( 24' x 27' ) keeps everything under it ice cold but everything above it stays 🔥
@@tjmooney4181 hehe, yeah I imagine it would do that…and you prob have higher temps then I do
@@AdamDeLay07 112 here in northern California last week 🥵
@@tjmooney4181 bleh, and I thought mid 80s was instant death…
Additional: one 12k Airspool, with on option to add an additional one only if 12k turns out to be too small.
I would recommend a 12k and put it above the TV. That way the Compressor is straight down. I sustained a 9k in my livingroom that is a little smaller than yours and it heater the hole house and cooling the hole house as well. The EG4 12 k should make you proud. Rodney put in a 12k in his work shead. Good luck with your installation easy pisey.
Thanks a lot!
Your in Michigan but I don't know how far north. 22'x22' 484 sq feet. Rule of thumb is 1 ton 12000 btu's per 400 square feet.
The best way is to run a manual j heat load calculation. Don't oversize the unit. If you want good heating you'll need to mount a unit closer to the floor level since heated air wants to rise.
That's good to know. Thanks!
Don't over cool 1 ton unit is more!! than sufficient if cooling is your priority, which sounds like it is. you may be light on btu's of heat but be more than what you had
sizing can be tricky with out knowing insulation a 20'000 BTU should handle it's better to have it run longer then to have it oversized and shut off
@@royamberg9177 hard to say what the crazy people did before I bought the house. I’ve found way too many “surprises” in the wall…. I’m guessing it’s only R12-14.
24000 BTU Mini Split Air Conditioner - Heat Pump - SENA/24HF × 1
24000 BTU Mini Split Air Conditioner - Heat Pump - SENA/24HF - Installation Kit 16 Ft. $1599.99
@@snoflite5234 thanks!
@@AdamDeLay07 I tried to include a product link, but you know how u tube is with links. It is a good unit, I have one for my shop. It will heat down to -22 degrees.
@@snoflite5234 thanks. You can always email it to me.
I like the room. Def needs bigger fan. That will help, could just be the video but it looks like the size of fan for a small bedroom. I installed a 9000 mini split onto a 12x20 room. I would def go bigger than that. Rough guess would be 18kish or bigger?
@@kazman8560 it does need a bigger fan. Need to get one of those commercial ones you see in lawn and garden stores… 😁
Thanks!
My 12k senville mini split works for me with that size room
@@asmallcanadianbeekeeper5427 awesome, thanks!
I did the mr kool,24k DIY 4 years ago and still works great. 750 sqfoot with valted ceiling. No problems with 30 degrees offset. 100 outside 70 inside. The blower started making a little noise but not enough to take time to replace. Getting replacement parts was a little tricky but found a solid supplier. Over the years there 24k design has changes so do your homework. Runs 100% on my solar 1800 watts to start the cool down. When the target temp and room temp are within 2 degrees the unit only draws 900 watts at active cooling. Midea U shaped is my preferred for window unit super quiet they make 8,10 and 12K. 8k are in stock but 12K are 2 month lead time. 12K will get you 500sq feet. Midea thermostats goes down to 60 d where most others are 64 d. I have a 8K for a small bedroom 250sq feet works great I also use the midea 12K in the same room as the mr kool 24K mini split as a backup or when I want to drop the temperature from 90 to 70 in less than an hour and run both. On a side note that RED wall paint may be a sublimation on the room being HOT.😊
@@colormaker5070 thanks! Yeah my wife thought the room could pull it off when we moved in cause it was such a large room. Wouldn’t work in any other room of the house though… 😁
Put ice cubes in a bowl and put a box fan behind it 😂😋
@@Roll2Videos 🤣🤣🤣 I actually tried one of those “styrofoam cooler air conditioners”…yeah couldn’t get it to work (even when I moved it to a small room)
@@AdamDeLay07 😂
BTU & CFM & SEER account for all of these and you’ll be able to figure it out.
Thanks
Check with me on DIY solar.
What is the room size? Both Signature solar and MrCool sell DYI units with pressurized line sets. No need to pressure test and vacuum out the lines. Without the room size and how tight it is, I am guessing 18K-24K should do.
@@alandonnels7382 it’s prob 24x24x14. Yeah I like the pressurized line set idea. I could buy the tools to perform a vacuum draw, but why when there’s DIY options… thanks!
@@AdamDeLay07 I agree but one doesn't have to buy the pump and guage set. Your local auto pats house will loan these to you. Well pay and then get money back when returned
@@glennwest4438 great idea! Thanks!
240000 btu Mr cool not eg4 .....
@@dangoras9152 why Mr cool vs EG4?