There Are Different Types of Gas Furnaces – Here’s What You Need To Know

Here throughout the Front Range, most of us depend on our gas furnaces. They are the most efficient type of furnace for the weather and environment we live with throughout the year.

But even within the gas furnace industry you have choices. This isn’t a “one model only” industry. If you’re in the market for a new gas furnace, spend a few minutes learning about your options so you can make the best choice for your home.

Conventional or Condensing

You’ll find that gas furnaces typically come in two different varieties: conventional or condensing.

A conventional furnace exhausts combustion gases of the chimney flue as heat is produced. This process is performed quickly before moisture has a chance to escape and condense.

A condensing furnace captures heat for a longer period of time. As combustion gases cool and condense, a condensing furnace continues to pull heat while separating out both water and carbon monoxide gases and exhausting them to the outside.

Burner and Blower Operation

Depending on whether you select a conventional or condensing unit, your furnace will operate in stages using a burner and blower. Most older technology uses a one stage burner and blower operation. It’s on or it’s off. By moving up to a two stage operation, you can select the burner to be at high or low settings, which gives you flexibility in how you heat and maintain the comfort level of your home. You will also find modulated furnaces that allow you to control the burner and blower operation in fine details, giving you the ability to keep the temperate at your desired level.

Efficiency Ratings

When you look at new furnace technology, you’ll find they are all rated by AFUE – Annual Fuel Utilization Efficiency. This measurement defines how much fuel conversion it takes to heat the space in proportion to the amount of fuel used. The higher the number, the more efficient the furnace.

While older technology currently installed in homes can be as low as a 55 rating, you’ll find today’s requirements have AFUE ratings of 80 or greater. Look for Energy Star certified furnaces to ensure you are getting equipment as efficient as possible.

Is your gas furnace as efficient as possible?