What size furnace do I need?

January 31, 2019

When the time comes to update your outdated furnace, it’s important to understand one size does not fit all.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 affect your comfort, but can result in shortened life of your furnace, and leave you stuck with higher energy bills.

If you pick a system oversized for your home, you’ll start to run into short cycles. The reason is that your oversized furnace heated your home too rapidly, 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 confident in the correct furnace size for your home? Begin with a load calculation from the team at Ambient Air. A load calculation takes specifics from your home into consideration and measures the Btu (a number that indicates the heating capacity of a furnace) needed to heat your house.

Some Things that Influence Furnace Size

  • Square Footage—How big is the area your furnace will be heating? Your 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 beneficial 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 strongly affects energy efficiency and how large of a heating system will be necessary. Let the team from Ambient Air review 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—Think about the range of weather you receive in Tucson. You’ll want a furnace that can keep up with the conditions of your area every year, without overworking itself.

Don’t settle for ‘close enough’ when picking your new furnace. Let the experts at Ambient Air help you find a system that will fit your home properly. When you’re ready to start the process, contact us at 520-201-3871 or book an appointment online. Whether you have some questions about furnace size or want to discuss options for your space, our experts are happy to help you out.