Understanding Dual Fuel Heat Pumps
A dual fuel heat pump is a system that operates primarily as a heat pump but switches to a backup heat source during extreme weather. In most homes, the backup system is a gas or electric furnace. The system automatically chooses the most efficient heating option based on outdoor temperatures and operating conditions. Below is a closer look at how dual fuel systems work and when they make sense. Heat Pump Efficiency and Temperature Performance Heat pumps are most efficient in moderate outdoor temperatures, typically above freezing. While efficiency gradually declines as temperatures drop, many modern cold-climate models
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