How does a dual fuel heating system operate?

A dual fuel heating system operates by combining a heat pump with a gas or propane furnace. This setup allows the system to leverage the efficiency of the heat pump in moderate temperatures, where it can extract heat from the outside air or ground. When the outdoor temperatures drop to levels where the heat pump becomes less efficient, the system automatically switches to the gas or propane furnace for supplemental heating. This method is beneficial as it optimizes energy use and reduces heating costs by utilizing the most efficient heating method available depending on environmental conditions.

The combination of both systems in a dual fuel setup ensures reliable heating performance while also providing flexibility and responsiveness to changing weather patterns, thus enhancing comfort in residential spaces.