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Russell & Abbott Blog

The Heat Load Calculation With a New Furnace—It’s Super Important

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This is the time to start bundling up. I have my permanent fur coat and don’t need to worry much about that, but I know that humans have it much harder when temperatures start dropping. You might be in the situation where you know you need new heating in Knoxville, TN and you’re ready to schedule a furnace installation.

That’s great—just make sure you call our team because we take all the vital steps to ensure you have a furnace that works effectively and safely. 

There’s one part about our installations that I like to point out, because it’s what sets us apart. It’s the heat load calculation. We take this part of installing a furnace seriously, because if it’s done wrong, you’ll end up with a furnace that either doesn’t heat the home enough or wears down rapidly from strain.

What’s a heat load, Olive?

It’s the HVAC term for the amount of heat a space needs to create a comfortable temperature. When we know the heat load of a house, we know how powerful a furnace to put in. 

A heat load calculation can be done several ways. Many of those ways are bad, I won’t sugarcoat it. Plenty of contractors do a heat calculation quickly and leave in guesswork. There should never be guesstimates when it comes to heat load calculations! There are multiple factors that must be figured, and if a contractor makes a guess at most of them, the chance of getting the final result wrong is high. 

Just to give you an idea of what goes into this calculation, here are some factors we need to know: the size of the house, number of windows and the direction they face, the insulation amount, number of people who live in the house, number of heat-producing appliances, number of lights, and more. We make sure to do this precisely so you’ll have a heater that’s the right size for your home.

What happens if the calculation is done wrong?

You get a furnace that is either too small for your house or too large. I think you can figure out why a furnace that’s too small is trouble: you won’t have the amount of heat you need to stay warm, and the furnace will run and run and run as it tries to reach the temperature you have set on the thermostat.

What about one that’s too big? That can’t be that awful a problem to have. Well, yes it is. An oversized furnace will short-cycle, which means it will shut down early, then turn back on, then shut down early, and on and on. This can lead to early repairs and an early replacement. It can also create uneven heating because the furnace doesn’t run for long enough.

We don’t “guesstimate,” we do it right!

You deserve a furnace that does the exact job you need it to do, and our Russell & Abbott team will see that you get it. Call us for heating options for a new installation, and we’ll do our best work to make sure you have the right heating system for this winter and many more.

Stay warm,

Olive

Russell & Abbott serves Blunt, Knox, and Loudon Counties and surrounding areas. Contact us today if you’re looking for better home heating.

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