279. Why do I need a load analysis for my home?
28 Jan 2026 · 1 min
Derek Cole explains why a heat load calculation is essential for every HVAC installation. It ensures your equipment is sized correctly, meets licensing and inspection requirements, and performs well long-term. Skipping this step leads to undersized or oversized systems that waste energy and money.
Questions this episode answers
2021-02-26
Derek Cole
Chapters
Foreign. Hey, this is Derek Cole and welcome to the Derek Cole Podcast. This podcast is all about home comfort and energy savings. The majority is really comprised of short audio clips of a device and answers to questions that we've been asked over the years. We also kind of sprinkle in the Ask Derek Cole show audio, which is a much longer Q and A kind of program. If you like this episode, and I hope you do, I would love for you to share it on social with others. Just take a screenshot of the program and hashtag it Derek Cole so I can see you. But let's get in to today's episode.
I will tell you what separates the companies from each other. The companies that provide a heat loss calculation and the companies that do not. That will tell you pretty quickly who you're dealing with. On every install, we do a heat load calculation, which is a load calculation on your house to make sure that is the right size unit going into your house. Now, it doesn't matter if you had a 4 ton unit for 25 years in your house because we still need to do one. And because you probably replace the windows, the doors, add insulation, replace the roof, got more insulation, something has changed in that space. So we're just going to calculate again what is needed, how much heat loss or heat gain your house has that will allow us to properly size the unit and then we'll put the unit into your home. A company that does not provide this is one that's not doing it. And you probably don't want them doing your home because it really does separate companies. You know, we do want them on every install. If you're a state license holder, you have to do one. If the state board were to come in here and say, hey, so and so, customer said you guys installed a three ton, it should have been a two and a half ton. Let me see your heat loss, heat gain, and then boom, you guys showed it to them. So you have to do on every install and you should do one. And regardless, you know, I've heard it many, many times. Same unit I've had for 30 years, 20 years, 15 years. Understand, I get it, I understand that. But this step needs to be done just to make sure. I mean, it's going to take another 15, 30 minutes. And this is a 10 year investment at least. So let's make sure we're doing it right the first time.
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