What is a Gas Furnace?
A Gas Furnace is a fuel burning unit, most often using propane or natural gas mixed with oxygen for combustion. Most modern Gas Furnaces operate at 92% AFUE, in other words 92% of the fuel burned in the furnace is converted directly into heat. This makes for easier venting of the combusted fuel because of lowered exhaust temperatures. Most of these furnaces can use PVC pipe for venting as opposed to using double, or triple walled metallic piping. These furnaces also produce moisture as a by product of squeezing as much heat out of a thermal unit of fuel as possible. Many safety devices have been added to all new fuel burning units including, flame rollout protection, heat chamber overheating protection, and exhaust overheating sensors, just to name a few. It is still advisable to have your fuel burning furnace inspected and cleaned annually to ensure its continued safe, and efficient, use. Its also a good idea to use a Carbon Monoxide, or CO, detector in your home any time you are usin
