Air Source

Tandem Chillers Inc. manufactures air source heat pumps for cooling and heating everything from your house to a university or office building. Our heat pumps use the difference between outdoor and indoor air temperatures to cool and heat your office, building or home.

Air source heat pumps can deliver one to three times more heat energy to a home than the electrical energy it consumes. This is due to the fact that a heat pump moves heat rather than converting it from a fuel like a typical furnace.


Like a chiller, a heat pump consists of a compressor and a heat exchanger that transfers heat from the surrounding air to the refrigerant. If it is being used to heat a building, the refrigerant in the outside coils extracts heat from the air and evaporates into a gas. The indoor coils release heat from the refrigerant as it condenses back into a liquid. A reversing valve, near the compressor, can change the direction of the refrigerant flow for cooling as well as for defrosting the outdoor coils in winter.


Tandem Chillers designed its first modular chiller almost 5 years ago with a limited number of scroll compressor chillers and screw compressor chillers. With the vast knowledge we gained over 40 years of process chiller design to the design of our modular chillers, you can be assured that our heat pumps are also of a sound refrigeration design and easily serviced.

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