it automatically switches from the heat pump to the furnace.” Johnson Controls-Hitachi Air Conditioning offers three versions of the dual fuel system, weighing from 30.6 kg to 38.1 kg.

An international research team has developed a novel solar-air dual-source heat pump (SAHP) for water heating applications. The system's innovation lies in using a blower fan that enables forced ...

Heat pumps have gained a taste of celebrity status as the most energy-efficient way to heat and cool a home. Heat pumps are so efficient that experts argue swapping out your heating and cooling ...

If one lives in an extreme climate and already has a fossil fuel heating system in their home, they may consider a hybrid or dual fuel heat pump system. Hybrid systems use both conventional fossil ...

If you already have ductwork installed in your home from a prior HVAC system, or if you choose a ductless heat pump system ... such as those that feature dual-fuel gas lines.

You can often combine your existing heating system with a heat pump. If they use two different sources of energy, that's ...

To get heat in the home, there are a few options to choose from, heat pump or ... type of heating system that most homeowners are more familiar with. This home appliance uses fuel -- often natural ...