Does the Size of Furnace Matter?

Your electric bill is one of the highest bills you face each month. Also, heating and cooling energy use are one of the largest contributors to the nation’s energy consumption. Purchasing a high-efficiency heating and cooling system can help to reduce your energy consumption and save you money on your monthly electric bill. You also need to choose the right furnace size based on your home size.

Many homeowners give no thought to their furnaces until it is time to turn them on. Your home’s furnace is an important part of your home, but you may not think of it until the weather turns cold and you need it to keep warm. If your furnace doesn’t come on when you need it, you and your family will not only be cold, but it can be detrimental to your health. An annual inspection of your heating system will ensure it is in good working order when needed. This and choosing the best size furnace for your home will not only keep you comfortable but help save you money on your electric bill.

You have your choice of many home furnaces, and knowing the basics will help you make the right choice for the size of your home’s needs.

  • Gas and oil furnaces have ducts that vent the exhaust gasses out of your home. They rely on combustion to produce heat.
  • Electric furnaces use heating strips to circulate the air through your home.
  • Wood and coal furnaces are not generally used in modern homes. Older homes are usually replaced with electric, gas, or oil units.
  • Dual heating units use a mixture of gas and an electric heat pump, or oil and electric, to heat your home.
  • Wall furnaces are convenient for apartment units or rental properties, and our mounting is on the wall.
  • Floor units are portable and heat one room but don’t produce enough heat to warm an entire house.

Almost all furnaces today are proven to be reliable, efficient, and with similar warranties. An efficiency rating of 80% for your furnace is a big investment to save on your energy usage. But a 95% efficiency for your unit is more appealing. In addition, most home furnace manufacturers offer gas rebates when you purchase a 95% unit furnace. The stage of a furnace refers to the burner and gas valve function. If you have a single-stage furnace, it is more likely that all 100,000 BTUs come on all the time, whether 50 degrees or 10 degrees. The 2-stage furnace gives you a gas-saving solution that makes the burner and gas valve run at 60% capacity depending on the heat needed. Both stages are available in 80% and 95% units.

Whichever home furnace you purchase, it is important to consider the size of the furnace and the size of your home. If you have a large home, you’ll need a large furnace to heat the space comfortably. If, however, your furnace is too large, you will end up paying too much for your heating costs. The best furnace fits your needs and keeps your home comfortable without increasing energy costs.

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About the author
Ben White has written thousands of articles on everything home improvement. He has had the privilege of writing for such websites as the Huffington Post, DeWalt,, HGTV, and many others.

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