What size furnace do I need?

January 31, 2019

When it’s time to update your outdated furnace, it’s important to understand one size does not fit all.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 select a system oversized for your house, you’ll start to run into short cycles. This means your oversized furnace heated your home too quickly, 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 sure you know the correct furnace size for your home? Get started with a load calculation from the professionals at Farnell Heating & Air Conditioning Inc. A load calculation takes particulars from your home into consideration and measures the Btu (a number that indicates the heating capacity of a furnace) required to heat your home.

Some Items that Influence Furnace Size

  • Square Footage—How big 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 will be accounted for 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 leaving your home through the cold winter months. It also heavily affects energy efficiency and how large of a heating system you’ll need. Let the experts from Farnell Heating & Air Conditioning Inc evaluate the insulation in your walls and attic. They’ll help you select the best furnace for your house.
  • Type of Window— Just like your walls, the certain 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—Think about the range of weather you experience in Mobile. 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 choosing your new furnace. Let the professionals at Farnell Heating & Air Conditioning Inc help you pick a system that will fit your home properly. When you’re ready to start the process, call us at 251-471-2674 or arrange an appointment online. Whether you have some questions about furnace size or want to learn more of the options for your space, our experts are happy to help you out.