A dual-fuel hybrid system combines a high efficiency electric heat pump and a better than 90% gas furnace to heat and cool your home.
In the Silicon Valley, where temperatures are typically above freezing a heat pump is the most efficient way to heat your home. In those few instances when the temperature drops below 40 degrees, a gas furnace provides heat more economically. By combining the two, you can have the benefits of both systems.
How It Works:
When the temperature is above 40 degrees or so, your heat pump uses electricity to heat your home as necessary. This type of heat circulates evenly throughout your home, and isn't too dry. When it gets really cold outside (around 40 degrees or lower), the heat pump automatically switches to supplemental gas heat for better efficiency.
Because there are advantages and disadvantages to both a heat pump and gas furnace based on the outdoor temperature, the dual-fuel solution really does give you the best of both worlds. It's the most comfortable heating system at any outdoor temperature, as well as one of the most efficient, versatile, and economical heating-and-cooling systems you can buy.
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