HVAC Contractor helping a couple choose a furnace

What size furnace do I need?

When it’s time to upgrade your outdated furnace, it’s important to realize one size does not fit all.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

If you choose a unit oversized for your home, you’ll start to run into short cycles. This is because your oversized furnace heated your home too rapidly, turning off before the furnace can reach the right operating temperatures. An undersized or oversized system can lead to reduced lifespan and cost you more in energy bills.

How can you be sure you know the proper furnace size for your home? Begin with a load calculation from the professionals at Street Heating and Cooling. A load calculation takes specifics from your home into account and gauges the Btu (a number that indicates the heating capacity of a furnace) necessary to heat your space.

Some Things that Influence Furnace Size

  • Square Footage—How big is the area your furnace will need to heat? A technician will be sure to carefully measure the square footage of your home. Not every inch of your home will be included during this process. Often, it is more useful to account only for the space that needs heating.
  • Home Insulation—Insulation helps keep warm air from filtering out of your home through the cold winter months. It also strongly affects energy efficiency and how large of a heating system is required. Let the team from Street Heating and Cooling take a look at the insulation in your walls and attic. They’ll help you choose the 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—Factor in the range of weather you get in Rapid City. 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 choosing your new furnace. Let the qualified technicians at Street Heating and Cooling help you find a system that will fit your home properly. When you’re ready to start the process, call us at 605-206-3915 or book an appointment online. Whether you have additional questions about furnace size or want to learn more of the options for your space, our team is happy to help you out.

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