What size furnace do I need?

January 31, 2019

When the time comes to replace your outdated furnace, it’s important to realize one size does not fit all.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 hurt your comfort, but can lead to shortened life of your furnace, and leave you stuck with higher energy bills.

If you choose a system 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 cost you more in energy bills.

How can you be sure you know the right furnace size for your home? Begin with a load calculation from the experts at Air Houston Mechanical LLC. A load calculation takes aspects from your home into consideration and measures the Btu (a number that indicates the heating capacity of a furnace) required to heat your house.

Some Things that Influence Furnace Size

  • Square Footage—What size is the area your furnace will need to heat? Your 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 beneficial to account only for the space that needs heating.
  • Home Insulation—Insulation works to keep warm air from escaping your home during the cold winter months. It also greatly affects energy efficiency and how large of a heating system you’ll need. Let the experts from Air Houston Mechanical LLC evaluate the insulation in your walls and attic. They’ll help you choose 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 play into what heating and cooling needs your home requires.
  • Outdoor Climate—Think about the range of weather you receive in Huffman. 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 selecting your new furnace. Let the qualified technicians at Air Houston Mechanical LLC help you identify a unit that will fit your home properly. When you’re ready to get started, you can reach us at 832-224-3887 or schedule an appointment online. Whether you have additional questions about furnace size or want to chat about options for your space, we’re happy to help you out.