Gas Furnace Types | HVAC Heating
Gas Fired Pool Heater
Gas Furnace Types come in a variety of sizes and can be used for different applications. Types of gas furnaces have different classifications. By and large, the most common gas furnaces use natural gas and utilize electronic ignition. Electronic ignition gas furnaces are slowly replacing the older style standing pilot furnaces where a pilot light remained lit all the time.
Now, with the newer modern electronic ignition, gas furnaces only use gas when there is an actual call for heat. That adds efficiency because, with the older standing pilot gas furnace, the pilot remained on even in the summer months. The heat produced by a standing pilot light is negligible. However, it is still added heat to the system in the summer.
The whole purpose of the AC in the summer is to remove the heat from the system. Rather than add heat like a standing pilot would do.
