HVAC Contractor helping a couple choose a furnace

What size furnace do I need?

When you need to replace your outdated furnace, it’s important to understand one size does not fit all.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 result in shortened life of your furnace, and leave you stuck with higher energy bills.

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 correct operating temperatures. An undersized or oversized system can lead to reduced lifespan and bigger expenses.

How can you be certain about the correct furnace size for your home? Start with a load calculation from the professionals at Ilten's Incorporated. 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 space.

Some Factors that Influence Furnace Size

  • Square Footage—What size is the area your furnace will be heating? A 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. Usually, it is more useful to account only for the space that needs heating.
  • Home Insulation—Insulation works to keep warm air from filtering out of your home throughout the cold winter months. It also strongly affects energy efficiency and how large of a heating system is required. Let the professionals from Ilten's Incorporated 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 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 Cedar Rapids. 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 picking your new furnace. Let the qualified technicians at Ilten's Incorporated help you identify a unit that will fit your home properly. When you’re ready to begin, call us at 319-363-0283 or book an appointment online. Whether you have some questions about furnace size or want to chat about options for your space, our team is happy to help you out.

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