Gas furnaces are most commonly installed in areas of the U.S. where the climate is much colder, and temperatures can drop below freezing. They are one of the most energy-efficient heating units you can install, and their AFUE percentage rating (energy efficiency level) can go up to 95% on higher end furnaces.
Gas furnaces are a type of home heating unit that work with forced air to circulate heat throughout your home during colder months. They use natural gas or propane as their main energy source, delivered through a main gas line or stored in onsite tanks (if a gas line is unavailable in your area).
An alternative to a gas furnace is an electric furnace if you are looking for an eco-friendly option. The low cost of installation and safety provinces also drives homeowners towards electric furnaces. Read our blog on pros and cons of gas and electric furnaces here.