Looking for a new furnace? Wondering what size (how many BTUs) you need to heat your home?
Here’s how to figure it out: Hire a reputable heating company to give you an estimate. Why do you need a professional? Because they should be performing a Manual J load calculation for you to determine the proper size.
Without a Manual J calculation, contractors rely on rules of thumb that can cost you serious money. They either use the size of your current furnace or the square footage of your home to determine the size your new furnace should be.
But these rules of thumb almost always result in a furnace that is too big for your home.
And bigger isn’t better. A furnace that’s too big for your home will cost you in:
Enter the Manual J load calculation…
Manual J was developed by the Air Conditioning Contractors of America (ACCA). Manual J load calculations determine how much heating and cooling a house actually needs. They require that the furnace installer consider the home’s:
All of these items contribute to how much heat your home needs during the winter, which determines the size of your furnace.
Check out this video for even more information on Manual J heat load calculations.
Live in the Atlanta area? Want to know what size furnace you need? Contact us and we’ll perform a Manual J load calculation and give you a free estimate.
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