HVAC Contractor helping a couple choose a furnace

What size furnace do I need?

When the time comes to replace your outdated furnace, it’s important to understand one size does not fit all. A system that is not sized appropriately for your home, will not only impact your comfort, but can result in shortened life of your furnace, and leave you spending extra money on your utility bills.

If you pick a unit oversized for your house, you’ll start to run into short cycles. The reason is that your oversized furnace heated your home too quickly, turning off before the furnace can reach correct operating temperatures. An undersized or oversized system can lead to reduced lifespan and bigger expenses.

How can you be sure you know the right furnace size for your home? Get started with a load calculation from the experts at Watts Electrical & Air Conditioning. A load calculation takes specifics from your home into consideration and measures the Btu (a number that indicates the heating capacity of a furnace) necessary to heat your house.

Some Items that Influence Furnace Size

  • Square Footage—How big is the area your furnace will have to heat up? Your technician will be sure to carefully measure the square footage of your home. Not every inch of your home may be accounted for during this process. Often, it is more useful to account only for the space that needs heating.
  • Home Insulation—Insulation assists in keeping warm air from filtering out of your home during the cold winter months. It also greatly affects energy efficiency and how large of a heating system will be necessary. Let the experts from Watts Electrical & Air Conditioning take a look at the insulation in your walls and attic. They’ll help you find a ideal furnace for your house.
  • Type of Window— Just like your walls, the particular type of windows in your home, frame type, glaze type, gas fills/spaces, etc. will play into what heating and cooling needs your home requires.
  • Outdoor Climate—Consider the range of weather you experience in Columbia. You’ll want a furnace that can handle the conditions of your environment every year, without overworking itself.

Don’t settle for ‘close enough’ when picking your new furnace. Let the qualified technicians at Watts Electrical & Air Conditioning help you pick a unit that will fit your home properly. When you’re ready to start the process, call us at 601-736-7362 or schedule an appointment online. Whether you have additional questions about furnace size or want to chat about options for your space, our team is happy to help you out.

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