Natural gas furnaces are one of the most popular heating options for US homes. According to data gathered by the US Census Bureau, gas-fired heating systems are used by 48% of American households
Natural gas has a key advantage over other fuels like propane and heating oil: it arrives by pipe as a utility service, which means you don’t have to worry about scheduled deliveries. With other heating fuels, you must plan these deliveries carefully to avoid running out during a cold winter day.
If you’re looking for the most efficient gas furnaces, the best recommendation is to look for units with the ENERGY STAR label. The US Environmental Protection Agency created the ENERGY STAR program to help homeowners and businesses looking for the most efficient appliances and equipment.
Energy consuming devices can only get the label after passing rigorous performance tests, in federally approved laboratories that are completely independent from manufacturers and vendors.
Here we will provide an overview of the most efficient gas furnaces you can find in 2022 and 2023, but first we will discuss the metric used to describe their energy performance – the Annual Fuel Utilization Efficiency or AFUE.