What size furnace do I need?

January 31, 2019

When it’s time to update your outdated furnace, it’s important to know that one size does not fit all. A system that is not sized appropriately 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 select a furnace 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 bigger expenses.

How can you be certain about the correct furnace size for your home? Begin with a load calculation from the team at WM J Kraus & Son. A load calculation takes aspects from your home into review and identifies the Btu (a number that indicates the heating capacity of a furnace) required to heat your home.

Some Things 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 will be accounted for during this process. Many times, it is more valuable to account only for the space that needs heating.
  • Home Insulation—Insulation works to keep warm air from escaping your home throughout the cold winter months. It also greatly affects energy efficiency and how large of a heating system will be necessary. Let the professionals from WM J Kraus & Son 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—Consider the range of weather you get in Keokuk. You’ll want a furnace that can handle the conditions of your area every year, without overworking itself.

Don’t settle for ‘close enough’ when selecting your new furnace. Let the qualified technicians at WM J Kraus & Son help you identify a unit that will fit your home properly. When you’re ready to begin, call us at 319-229-2318 or schedule an appointment online. Whether you have a few more questions about furnace size or want to learn more of the options for your space, we’re happy to help you out.