What size furnace do I need?

January 31, 2019

When you need to replace your outdated furnace, it’s important to realize one size does not fit all. A system that is not sized properly for your home, will not only affect your comfort, but can mean a shortened life of your furnace, and leave you with larger energy costs.

If you choose a system oversized for your space, you’ll start to experience short cycles. The reason is that your oversized furnace heated your home too rapidly, turning off before the furnace can reach proper operating temperatures. An undersized or oversized system can lead to decreased lifespan and higher costs.

How can you be confident in the right furnace size for your home? Begin with a load calculation from the professionals at Davis Heating & Air Conditioning. 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 house.

Some Factors 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 may be included during this process. Usually, it is more beneficial to account only for the space that needs heating.
  • Home Insulation—Insulation helps keep warm air from leaving your home during the cold winter months. It also heavily affects energy efficiency and how large of a heating system you’ll need. Let the professionals from Davis Heating & Air Conditioning review the insulation in your walls and attic. They’ll help you choose the best furnace for your house.
  • Type of Window— Just like your walls, the certain 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—Factor in the range of weather you experience in Rocky Mount. 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 selecting your new furnace. Let the professionals at Davis Heating & Air Conditioning help you pick a unit that will fit your home properly. When you’re ready to start the process, contact us at 540-369-3790 or schedule an appointment online. Whether you have additional questions about furnace size or want to learn more of the options for your space, we’re happy to help you out.