Their life span ranges from 15 to 30 years. Most homes in the United States rely on natural gas furnaces for heating. While more expensive to install than electric furnaces, with an average cost ...
The three main types of furnaces are electric, natural gas and oil. Like with air conditioning systems, a furnace’s size is measured in British thermal units, or BTUs. The number of BTUs ...
and the labor cost for installation. The main types of furnaces are electric, natural gas, propane, and oil. Even though these all heat a home, they are powered differently and have different pros and ...