HVAC Contractor helping a couple choose a furnace

What size furnace do I need?

When the time comes to update your outdated furnace, it’s important to understand one size does not fit all. A system that is not sized properly for your home, will not only impact your comfort, but can lead to shortened life of your furnace, and leave you stuck with higher energy bills.

If you select a system oversized for your home, you’ll start to notice short cycles. This is because 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 decreased lifespan and higher costs.

How can you be confident in the correct furnace size for your home? Begin with a load calculation from the professionals at B & B Heating & Cooling. A load calculation takes aspects from your home into review and identifies the Btu (a number that indicates the heating capacity of a furnace) necessary to heat your home.

Some Things that Influence Furnace Size

  • Square Footage—What size is the area your furnace will have to heat up? The technician will be sure to carefully measure the square footage of your home. Not every inch of your home needs to be accounted for during this process. Usually, it is more useful to account only for the space that needs heating.
  • Home Insulation—Insulation helps keep warm air from escaping your home through the cold winter months. It also greatly affects energy efficiency and how large of a heating system will be necessary. Let the team from B & B Heating & Cooling evaluate the insulation in your walls and attic. They’ll help you find a perfect furnace for your house.
  • Type of Window— Just like your walls, the specific type of windows in your home, frame type, glaze type, gas fills/spaces, etc. will influence your heating and cooling requirements.
  • Outdoor Climate—Factor in the range of weather you get in Florissant. You’ll want a furnace that can handle the conditions of your climate every year, without overworking itself.

Don’t settle for ‘close enough’ when selecting your new furnace. Let the experts at B & B Heating & Cooling help you identify a unit that will fit your home properly. When you’re ready to get started, you can reach us at 314-325-7552 or arrange an appointment online. Whether you have additional questions about furnace size or want to discuss options for your space, our experts are happy to help you out.

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