HVAC Contractor helping a couple choose a furnace

What size furnace do I need?

When you need to replace your outdated furnace, it’s important to know that one size does not fit all.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

If you choose a unit oversized for your home, you’ll start to experience short cycles. The reason is that your oversized furnace heated your home too fast, turning off before the furnace can reach correct operating temperatures. An undersized or oversized system can lead to decreased lifespan and cost you more in energy bills.

How can you be certain about the proper furnace size for your home? Begin with a load calculation from the experts at Patterson & Stirling Inc. A load calculation takes particulars from your home into consideration and identifies the Btu (a number that indicates the heating capacity of a furnace) required to heat your house.

Some Factors that Influence Furnace Size

  • Square Footage—How big is the area your furnace will need to heat? The technician will be sure to carefully measure the square footage of your home. Not every inch of your home needs to be included during this process. Many times, it is more useful 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 strongly affects energy efficiency and how large of a heating system will be necessary. Let the experts from Patterson & Stirling Inc review the insulation in your walls and attic. They’ll help you select the 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—Think about the range of weather you experience in Erie. You’ll want a furnace that can sustain the conditions of your area every year, without overworking itself.

Don’t settle for ‘close enough’ when selecting your new furnace. Let the professionals at Patterson & Stirling Inc help you identify a solution that will fit your home properly. When you’re ready to start the process, contact us at 814-308-0416 or book an appointment online. Whether you have some questions about furnace size or want to chat about options for your space, we’re happy to help you out.

Back To Blog