What size furnace do I need?

January 31, 2019

When the time comes to replace your outdated furnace, it’s important to understand one size does not fit all. A system that is not sized correctly for your home, will not only hurt 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 system oversized for your house, 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 the right operating temperatures. An undersized or oversized system can lead to decreased lifespan and higher costs.

How can you be sure you know the correct furnace size for your home? Get started with a load calculation from the team at Oak Grove Heating & Air Conditioning. A load calculation takes specifics from your home into consideration and gauges the Btu (a number that indicates the heating capacity of a furnace) necessary to heat your home.

Some Things that Influence Furnace Size

  • Square Footage—How large 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 needs to be accounted for during this process. Often, it is more valuable 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 greatly affects energy efficiency and how large of a heating system is required. Let the experts from Oak Grove Heating & Air Conditioning evaluate the insulation in your walls and attic. They’ll help you select 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 influence your heating and cooling requirements.
  • Outdoor Climate—Think about the range of weather you experience in Hattiesburg. 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 professionals at Oak Grove Heating & Air Conditioning help you find a solution that will fit your home properly. When you’re ready to start the process, contact us at 601-292-9763 or schedule 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.