Hybrid Systems

Hybrid Heat Systes by Carrier

Hybrid Heat/ Dual Fuel Systems

A fossil fuel furnace used in conjunction with a heat pump unit operated with integrated automatic controls to achieve the ultimate efficiency and to provide you with maximum comfort with a lower operating cost.

Automatic controls in a hybrid system provide the flexibility to switch between fossil fuel and electric consumption. Under moderate outside temperatures, the control initiates the heat pump outdoors which uses electricity as its energy source; however, when conditions outside are much colder and the use of the heat pump becomes inefficient, the control automatically shuts off the heat pump and starts the furnace inside. It has the same concept of hybrid vehicles. When electricity on its own, can’t provide what’s necessary to complete its task, then it switches over to gas.

Electrical furnaces are 100% efficient because there is no heat lost through the chimney and there are advance features available to consider.

Electric resistance heating converts nearly 100% of the energy in the electricity to heat. However, most electricity is produced from oil, gas, or coal generators that convert only about 30% of the fuel’s energy into electricity. Because of electricity’s generation and transmission losses, electric heat is often more expensive than heat produced in the home with combustion appliances, such as natural gas, propane, and oil furnaces.

Electric resistance heat can be supplied by centralized forced-air furnaces or by zonal heaters in each room, both of which can be composed of a variety of heater types. Zonal heaters distribute electric resistance heat more efficiently than electric furnaces because you set room temperatures according to occupancy. In addition, zonal heaters have no ducts that can lose heat before it reaches the room. However, electric furnaces can accommodate central cooling easier than zonal electric heating, because the air conditioner can share the furnace’s ducts.

Electric resistance heat can be provided by electric baseboard heaters, electric wall heaters, electric radiant heat, electric space heaters, electric furnaces, or electric thermal storage systems.

Hybrid System Documents

Dual Fuel System

Automatic controls in a hybrid system provide the flexibility to switch between fossil fuel and electric consumption. Under moderate outside temperatures, the control initiates the heat pump outdoors which uses electricity as its energy source; however, when conditions outside are much colder and the use of the heat pump becomes inefficient, the control automatically shuts off the heat pump and starts the furnace inside. It has the same concept of hybrid vehicles. When electricity on its own, can’t provide what’s necessary to complete its task, then it switches over to gas.