Відео

It's interesting how this residential approach is so different than how it's done with commercial systems.

Can I get more information about the course??

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Thank you so much for this video. I am in the planning stages of a full gut of an old house. I am planning on doing underfloor radiant heat (gas combo unit) and Central A/C. The house is a one floor with a large open unfinished attic. I have only ever seen returns on walls (high and low) but kept thinking the ceiling would be better for a cool only system. Efficiency is a huge priority for me. Adding 2 ceiling vents for input and output seemed like a good idea. Your video confirms that!

Wow that video sucked.

Sounds like I hit the hand payout at the casino

Question, heat rises I got to vets in my room was near the bottom of the ceiling ones at the bottom of the wall. The top of the heat the bottom is the air should one be closed and the other open.

show pics videos of what you are talking about. sorry, but your vlog is boring

That pressure loss of .065 is inch of water column?

Thanks

This is the first video I've watched for HVAC. Am I able to piggy back off another duct to cool down the garage? My hvac is on the east side of the house in the attic. Their is a duct that goes to the hallway. Am I able to do a y connection to get to the garage? Or is their a better way of routing?

Great presentation

Hello When you have a home with a basement condition or not and the complete hvac system is there I understand that the basement should be conditioned , but most are not Do you include the basement sg’ in the manual j When you have a attic that has 1:00 1:00 hvac in the attic do you include the attic sq’ with in the attic I know the attic should be conditioned if there is hvac there so I would add it in correct It isn’t conditioned and hvac is there I still need to account for the loss correct

I’ve given this speech to lots of people. I would add if you’re switching to a heat pump air handler that the blower performance charts include the coil. More air because you dropped static by the amount of the furnace split coil pressure drop. Great video.

Hey please!! Need help!! I have a 4 ton heat pump with the return coming from the bottom, it needs to sit on a 13 inch high box to accommodate a 10x30 return drop and the unit is 49 inches tall, so 62 inches total height. My ceiling is 77 which leaves me 14 inches for a plenum and my trunk line is 10 inches tall. I wanted to do an offset to the trunk line to give good air flow but we're talking like 1-2 inches from the bottom of the plenum. Is that a problem? This video is the closest thing I could find to any content discussing this and it mentioned 10 inch minimum which would be impossible even with an 8 inch tall trunk. Let me know please!! Any advice? Am I okay?

Thoughts on corrosion grenades?

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yack, yack, yack

Dude, where the f#%$ is the vent?

Your info is great. I’ve been in hvac for 20 years , maybe a touch longer. I started a business a few years ago and it’s went well, but I find myself a much better teacher or coach especially when it comes to field technicians and sales. I’ve been highly considering starting a coaching business or technician training . Like real training with units and dip switches . There’s very few of those anywhere . And the only true way to learn hvac is hands on. And even 20 years later you’re still gonna run into something that just doesn’t make sense . But your info is great

Local contractor oversized my heatpump ( I have increase in humidity, my system runs longer, and my evaporator coil truck / supply is always sweating, etc) what can i do now? Need advice. my sqft is 3490, i have 2 zones (upstairs and downstairs) the unit in the basement was replaced with a heatpump.

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Hi Chris. Thank you so much for all this excellent information. I'm having a very hard time finding anyone explain how to input vaulted ceilings into the various manual J software. Is it as simple as figuring out the equivalent air volume as if the ceiling was flat and inputting that calculated ceiling height? And then inputting the actual ceiling square footage which will be greater than the floor square footage? Also, is there a better way on placement of registers on such ceilings - like one at the very top and one lower closer to the wall, rather than just having one at the lower location? If you could help by sharing your thoughts, that would be so helpful and appreciated.

Awesome video. I had a new ac installed a couple summers ago, and unfortunatly, just installed the same size, which is a 3 ton. I could probably of gone with a 2.5 ton instead, since I have done a ton of energy upgrades since the house was first built (I am not the original owner). I could say a lot, but my way around this is to have a temp threshhold of 1.4 degrees more than my set point, so then it gets long run times, The wife doesnt notice and the humidty goes down since the run times are longer. Plus with an Ecobee and all my sensors, I only use the sensors in the warm parts of the house. Is it perfect, no. But with HVAC there is no perfect, since every house and area are different. Even having more family members in a house can make a difference on your cooling, or a young family compared to empty nesters. I range from 40-50% most of the time, so I must be doing something right

Hi, thank you for the informative video. You mentioned at 3:54 that when having an ancillary dehumidifier, we can use Option B (+15,000 BTU/H) for anywhere in the United States. Is this still the case in 2024? I'm referencing Manual S Second Edition 1.00 2014, and see that to use option B there are 3 requirements that need to be met: 1. The dehumidifier shall be part of an engineered System. 2. The local degree day ratio shall be 2.0 or more. 3. The AHJ does not provide different Guidance. With those conditions, would it mean that only Nothern parts of the states would be able to use condition B?

Very insightful post, thanks for sharing!

What’s decent humidity inside when temps or in the 90s outside

What in hell made you think adding background music would make it better? Was too annoying

HI, are you avaible for a consulatation? You're website won't let me book an appointment with you. Please advise.

Are you available for paid consultation?

Phenomenal, I have never seen a HVAC explained so well and organized like yourself. Hats off to you my man.. you got this down to a science. I sure wished you lived in New York. I have a 1400 ft² house they installed a Rheem 2 ton unit, when really hot doesn't cycle runs constantly.... when cooler runs normal. Think I should have had a two and a half ton what do you think. Thank you in advance and I love you videos

Good stuff! That bit about airflow being allowed to pass through the entire filter is definitely something automakers could be paying more attention to with engine air filters. I'm glad my house unit at least has that in mind, since it has a 4-inch-deep MERV 13 filter that looks like it takes a lot of effort to push air through.

If you dont have that 10 inch min when you use a 45degree taper on the 1-D, should you stick with stabbing into plenum to preserve 10 in height, or go with taper and sacrifice soem of theta height to below 10 inches ?>

Hi Chris, excellent job with these videos. I’m learning a lot, you’re a great teacher! I have a question for you. I recently had new construction built for me and the Manuel J included a Carrier brand system and specs for the report, which is what the Manuel S also included or recommended. But my builder installed a Comfort Aire handler and Rheem condensers. The builders choice of equipment was not included on the Manuel J or S, is this problematic? I am having issues with my upstairs system. It’s running consistently on warmer days and has very poor air flow compared to the downstairs system which is .5 tons larger. I’m thinking they undersized the upstairs unit but I’m a novice with a Manuel J report trying to find the problem. Any advice would be appreciated, and thank you for taking the time to make these informative videos!

Useful video...but turn down/off the music.

The biggest problem with testing and balancing, after everything is said and done it’s generally a waste of money. I used to do HVAC work and worked for a testing and balancing company. After a while, I realized all I was doing was just pi$$ing in the wind! We would go in to a building (sometimes a brand new building) and set everything up to the engineering specifications only to come back and check everything a few months later and see that the customers had completely readjusted everything we did! Some customers would complain they were too cold, others would gripe they were too hot and what would they do? Go in and tinker with the settings, dampers, shut off valves, etc. causing everything to run in efficiently in the process. Of course, the video you have here is good and very informative and I don’t mean to gloss over nor kick what you do to the curb but it’s a lot of money wasted to go through all the hullabaloo of setting something up to come back and have somebody screw it up again!

really nice! I need to watch again for the last point. thank you so much!

The music is louder than the speech. Not suitable for a tecgnical presentation. Would have been OK for an elevator lobby. Could not listen to the end.

Flat rate or fail

TRUE

Do you want me to hear the music or do you want me to hear you talk lol😅 I appreciate the information

If I have a return air in my wall and with no ducts leading like literally just a return vent and then you see the inside of my walls. Why? My house was built in 1988.

Lost a chromosome

Amazing, yet in the wild I yet to see all of this being followed. The combination of making money, time vs speed and the unique challenge of each house... ducting

What are you suppose to do when the AH is in the worst spot of a U shaped house so you have to go two directions from the plenum

Duct velocity and grille/registers velocity are 2 different things.

Should I go by AF or diluted?

how do you get that latent heat. thank you sir..

This is really excellent, thanks so much for doing this. Learned a ton (no pun intended)

Background music irritating