A dual fuel system may come in the form of a packaged unit or a split system with two energy sources.
Dual fuel furnace wiring.
The dual fuel set up.
About the c wire.
Dual fuel technology combines the cooling and heating performance that you get from a heat pump with the consistent heating capacity of a gas furnace.
The common c wire doesn t control heating or cooling.
Natural gas is more efficient for bigger heating loads so the dual fuel system uses gas when temperatures get really low.
2 nest thermostat can only support one of these systems at a time.
Heating with a dual fuel heat pump.
Since a heat pump is more efficient than a gas furnace at higher temperatures the dual fuel system defaults to a heat pump on milder days.
Heat pumps save energy because transferring heat is easier than making it.
If it were always that simple you d be all in for dual fuel no matter what.
The electric heat pump and a gas furnace.
A dual fuel furnace takes on the problem with a hybrid approach that combines a heat pump and a backup gas fired heater.
The furnace kicks in for only the coldest months.
As long as outdoor temperatures remain above the.
Dual is better than one.