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When you need to upgrade your outdated furnace, it’s important to realize one size does not fit all. A system that is not sized properly for your home, will not only affect your comfort, but can mean a shortened life of your furnace, and leave you with larger energy costs.

If you select a furnace oversized for your home, you’ll start to notice short cycles. This is because your oversized furnace heated your home too fast, turning off before the furnace can reach proper operating temperatures. An undersized or oversized system can lead to decreased lifespan and cost you more in energy bills.

How can you be sure you know the proper furnace size for your home? Begin with a load calculation from the professionals at JonAire Inc. A load calculation takes aspects from your home into account and measures the Btu (a number that indicates the heating capacity of a furnace) necessary to heat your house.

Some Factors that Influence Furnace Size

  • Square Footage—What size 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 needs to be considered during this process. Many times, it is more beneficial to account only for the space that needs heating.
  • Home Insulation—Insulation assists in keeping warm air from escaping your home through the cold winter months. It also heavily affects energy efficiency and how large of a heating system is required. Let the team from JonAire Inc 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 play into what heating and cooling needs your home requires.
  • Outdoor Climate—Consider the range of weather you get in Las Vegas. You’ll want a furnace that can keep up with 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 JonAire Inc help you identify a system that will fit your home properly. When you’re ready to get started, call us at 702-866-9322 or book an appointment online. Whether you have additional questions about furnace size or want to chat about options for your space, our experts are happy to help you out.

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