Furnace Articles

What Is a Dual-Fuel System?

April 15, 2026

A dual-fuel system sounds more high-tech than it really is. It can positively solve a lot of issues for , homeowners. Still, it is really nothing more than a combined heating, ventilation, and air conditioning (HVAC) system composed of a heat pump and a furnace. The term “dual-fuel” refers to the combination of electricity required…

What Does AFUE Mean?

March 3, 2026

While an air conditioner’s efficiency is measured by its SEER (Seasonal Energy Efficiency Ratio) rating, furnace efficiency is measured by AFUE, or average fuel utilization efficiency. This standard measurement is given in percentages, letting you know how much of your fuel is actually used to heat your , home and how much fuel is wasted.…

How Does My Gas Furnace Work?

February 28, 2026

On a frosty winter’s day here in , your gas furnace is hard at work, keeping your home warm and cozy. Feeling grateful? You’re not alone—it is one of the most popular forms of heating, as American as apple pie. In 1919, New Jersey inventor Alice H. Parker filed a patent for the first gas-fueled furnace.…