HVAC Contractor helping a couple choose a furnace

What size furnace do I need?

When you need to upgrade your outdated furnace, it’s important to know that one size does not fit all.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

If you choose a furnace oversized for your home, you’ll start to experience short cycles. This means 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 higher costs.

How can you be certain about the right furnace size for your home? Get started with a load calculation from the professionals at Olde Towne Heating & Air. A load calculation takes aspects from your home into account and measures the Btu (a number that indicates the heating capacity of a furnace) needed to heat your space.

Some Items that Influence Furnace Size

  • Square Footage—How large is the area your furnace will have to heat up? The technician will be sure to carefully measure the square footage of your home. Not every inch of your home may be considered during this process. Many times, it is more beneficial to account only for the space that needs heating.
  • Home Insulation—Insulation helps keep warm air from filtering out of your home during the cold winter months. It also heavily affects energy efficiency and how large of a heating system you’ll need. Let the team from Olde Towne Heating & Air review the insulation in your walls and attic. They’ll help you find a 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 Mount Pleasant. You’ll want a furnace that can handle the conditions of your climate every year, without overworking itself.

Don’t settle for ‘close enough’ when picking your new furnace. Let the experts at Olde Towne Heating & Air help you pick a solution that will fit your home properly. When you’re ready to begin, call us at 843-485-0967 or schedule an appointment online. Whether you have some questions about furnace size or want to discuss options for your space, we’re happy to help you out.

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