When it’s time to replace your outdated furnace, it’s important to understand one size does not fit all.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 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 notice short cycles. The reason is that 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 a shortened life span and cost you more in energy bills.

How can you be certain about the proper furnace size for your home? Start with a load calculation from the team at Custom Air Systems Inc. A load calculation takes aspects from your home into account and identifies the Btu (a number that indicates the heating capacity of a furnace) needed to heat your space.

Some Factors that Influence Furnace Size

  • Square Footage—What size is the area your furnace will have to heat up? Your technician will be sure to carefully measure the square footage of your home. Not every inch of your home will be considered during this process. Many times, it is more beneficial to account only for the space that needs heating.
  • Home Insulation—Insulation works to 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 Custom Air Systems Inc evaluate the insulation in your walls and attic. They’ll help you find a best 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 have an impact on the heating and cooling needs of your home.
  • Outdoor Climate—Factor in the range of weather you experience in Port St. Lucie. 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 experts at Custom Air Systems Inc help you identify a unit that will fit your home properly. When you’re ready to start the process, you can reach us at 772-247-2283 or arrange an appointment online. Whether you have additional questions about furnace size or want to discuss options for your space, our team is happy to help you out.