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air to water heat pump systems

An air to water heat pump is a piece of mechanical equipment that extracts thermal energy from the air and uses it to heat or cool water.

An air-source heat pump system works by concentrating and transferring thermal energy between the outside air and indoor space. For example, when providing heat to the indoor space, a fan draws air through the heat pump’s evaporator, which is situated in the outdoor heat pump. The thermal energy in the air is transferred to a refrigerant which changes its physical state and evaporates even at low temperatures, absorbing the energy. The heat pumps compressor increases the pressure of that refrigerant and then feeds this now energy-dense refrigerant into the heat pumps condenser which transfers the thermal energy into a water and glycol mixture. This hot fluid is pumped through pipes into the indoor space and used to heat radiant floors, warm air and or heat domestic water.

The EVI System

How the EVI system works

EVI stands for “Enhanced Vapor Injection” and is a technology used on our cold climate heat pumps to achieve higher performance at lower temperatures. An EVI heat pump uses a 3rd smaller internal plate heat exchanger called an “Economizer” within the refrigeration cycle to provide optimal refrigerant pressures and temperatures to a twin inlet compressor. These features allow the heatpump to efficiently and reliably extract energy from much colder air than standard heat pumps.

With the right control system, multiple comfort zones can be serviced within a home or building.

In addition, an air to water heat pump can be used to heat domestic water. A dedicated heat exchanger or hot water tank with a built-in heat exchanger is used to transfer heat from the heat pump system to heat domestic hot water. We even offer specific models for pools and hot tubs.

Our air to water heat pump can operate down to outdoor ambient temperatures of -30 C (-22 F).

EVU Buffer Tank
EVI Buffer Tank
Hydron-Aire logo
Hydron-aire products selection

Hydron-Aire is the leading distributor of high-efficiency heating and cooling systems in Western Canada.

With offices in the Winnipeg and Vancouver areas, we distribute both residential and commercial equipment in select territories.

News

  • Cold climate air source heat pumps – Manitoba Hydro

    Cold climate air source heat pumps – Manitoba Hydro

    Manitoba Hydro breaks down the 2 main types of cold climate air source heat pumps and their benefits, plus some maintenance tips.

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  • Oil to Heat Pump Affordability (OHPA) Grant

    Oil to Heat Pump Affordability (OHPA) Grant

    Natural Resources Canada announced a $250 million investment for the Oil to Heat Pump Affordability (OHPA) Grant, a new stream to add to the existing Canada…

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  • The Canada Greener Homes Initiative

    The Canada Greener Homes Initiative

    The government of Canada is providing homeowners grants of up to $5000 to recoup costs of retrofitting their homes to be more energy efficient. The…

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