Air To Air Heat Pumps In Cold Climates

Their cold climate heat pump development and demonstration.

Air to air heat pumps in cold climates.

The winters in atlantic canada are among the coldest in the world and still heat pumps can operate efficiently during the vast majority of winter days. Market lists a heating capacity of 47 500 btu hr and a coefficient of performance of 2 55 at 0º outdoor temperature with 120º water temperature. They have done this through more efficient compressor design and control strategies that use multiple stages or variable speeds. While the study described in this article focused on single zone systems multizone systems are expected to perform similarly.

Some air to water heat pumps now are available that can operate at ambient air temperatures down to 13º. Ashp systems can be installed in different types of housing across a range of climates. Low ambient air to water heat pumps are available. Cchp replaces a furnace and air conditioner to provide year round heating and cooling and provides sufficient heat for approximately 50 to 70 of a household s annual hot water needs.

Radiant floor heating cooling central air handlers for forced air split fan coils for individual room heating low temperature radiators and can also integrate to. Air source heat pumps are generally sized to produce enough heat for 80 90 of the annual heating load and should be able to satisfy 100 of your heating load when temperatures are above 0 c. Cold climate air source heat pumps are available as both central ducted systems and ductless systems. Cchps operate with nearly 400 efficiency at 47 f or above.

By storing the heat energy we can distribute it to any source we want. As you can see the heating capacity of this air source heat pump drops off as the temperatures decrease. Unlike most other heat pumps on the market our cold climate heat pump uses an air to water principle. Both system types are available with single and multizone indoor units.

Newer cold climate heat pumps have largely solved the problem of extracting heat from very cold air allowing them to operate economically down to 5 f or below. Thanks to an inverter or variable speed drive compressor design these heat pumps achieve high levels of efficiency even during the winter season. The murb cchp is a multi unit residential building murb version of the a2a cchp. A hydronic heat pump has many advantages over conventional air to air heat pumps.

Our water heating system units can provide superior energy storage through a buffer tank. While all heat pumps can provide heating for your home not all are ideal for extremely cold climates. One unit currently on the u s.