The BIGGEST HVAC Mistake Homeowners Don't Know Contractors are Making!

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Күн бұрын

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@paulmarc-aurele5508 2 ай бұрын

I coming from 45 years in the industry and I agree with you to a point. If you are quoting a new system then yes and a replacement system maybe. Here’s why I say this, if a house owner has lived with the system for 10 years and have had zero issues with its performance replacement of the same size won’t be an issue. Load calculations sometimes miss building deficiencies as well or don’t account for the way a user operates their system.

@seanboate9960 2 ай бұрын

Up to a point. They did a virtual calc on my house, coming up with a system that was right on the border between 4 and 5 ton. Because I had a 5 ton they went 5 ton. But the effeciency was so much better (19 seer) and they didn't take into account the improvements I was going to do in the next few years so now I have a 5 ton system that, while it works, really should be a 4 ton to run longer and handle the humidity better.

@paulmarc-aurele5508 2 ай бұрын

When I built my house the load was calculated 4 ton, I put 3 in and it was perfect. I overrode the calculation because it never considers a home built to higher standards.

@virgil3241 2 ай бұрын

Thing is, 95% of home owners dont know they are having issues, and that their comfort can be made better if things were done right in the first place. And think a house from 20 years ago thats had a bunch of energy work done to make it better, renivations and the would take the exact same size? Sorry coming from a guy that 10 quotes for his ac and then his furnace. Why, because one would come in like you and say, yep, had 100 BTU furnace, thats what you need. Not realizing the furnace was over sized from build.

@tylerrhoton9983 2 ай бұрын

How much is the company going to charge to calc the load test?

@hvacguide1 2 ай бұрын

I think it depends on the home. They will give you an estimate upfront!

@bobboscarato1313 2 ай бұрын

Hello Joshua; you made some good recommendations for potential new buyers. I think if your tech man or an estimator spend an hour or so to complete an estimate and ask questions from them, they'll be more inclined to buy from you since you engaged them and they saw how you arrived to your figures, 80% will buy from your company!

@Garth2011 2 ай бұрын

What's worse about this is, new construction as well as existing construction, they all paid for proper sizing and ducts/registers/returns/filters etc. Even worse...permits were obtained, paid for and of course, the local inspectors signed them as acceptable and construction moved forward. What is sad is, those same inspectors will call out other items several times a day in their work yet for some reason, an improper sized (too small more than likely) HVAC system goes unnoticed and so will ducting and register locations. The older the construction, the less this would be looked into however, in the past 5 years or less, HVAC systems, their ducting, registers and their locations, returns and their size or number of them are all very important the tighter the living space envelope is. Even today, builders are still using cheap stamped sheet metal registers that restrict air flow and make noise and they aren't getting installed in the correct locations. Same with returns, usually two returns are best yet one seems to be all they care about and again restrictive registers and wrong sizing. Rigid ducts should be used as much as possible and any flex should NOT have any kinks or tight 90 elbows. Plenums don't have manual dampers, which will help much when balancing air distribution. Why these items are not standard requirements bothers me when the EPA and other agencies are so hell bent on efficiency. HVAC contractors who do not discuss and offer this type of install aren't helping anyone especially when the above is only a few hundred dollars more but very costly to put in after construction. I place most of the blame on the city codes and then on the HVAC industry to push better standards and stop using old ways and cheap materials.

@NewHVACGuide 2 ай бұрын

That is an interesting perspective. I don’t necessarily disagree with you, but I will say that I place ALL the blame on contractors. Inspectors should definitely be doing their job, but I still blame professionals in our trade for cutting corners.

@Garth2011 2 ай бұрын

@@NewHVACGuide I would agree 100% but those who do not are those who can't sell very well. They won't take the time to show their talent and what makes up their estimates. Also, why a good install is 100% what makes a system last problem free for the most part and comfort. Probably they need some help by the codes and inspectors that should be explaining that total minimum is no longer good enough.

@jackl9922 2 ай бұрын

By downsizing a too big furnace, upsizing the compressor, all variable speed, temp control is near perfect. Guess got lucky. Compressor rarely runs full on, controls humidity well. We were able to hold 70 in never before record heat at 117 at the worst. Then, it ran wide open all day. Again, got lucky.