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Hot water heat pump technology

3 min read
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Calorex heat pumps provide a sustainable heating solution which, compared to fossil fuel or direct electric systems, will dramatically cut operating costs and carbon emission.

Calorex air source heat pumps can use source heat from every climatic condition and are available in different designs to suit space or hot water heating. Calorex products offer industry leading standards of efficiency and durability and are supported by comprehensive technical support that guarantees correct product specification and after sales care.

Unrivalled efficiency

Unlike fossil fuel and direct electric heating systems, a Calorex heat pump is capable of delivering up to five times more energy than it consumes, and unlike solar systems, Calorex heat pumps do not need the sun to shine in order to provide this efficiency.

Heat pump efficiency at differing air temperatures

Heat pump efficiency at differing air temperatures


The Calorex range of hot water heat pumps are a quality range of packaged units specifically designed for hot water heating to 68°C. Calorex heat pumps are simple to install, require little maintenance and alleviate the need for fuel storage tanks and flues that are normally associated with fossil fuel heating systems. Further, due to their unique ability to collect and enhance 'free' heat from the air around them, they are kinder to the environment than traditional heating systems and exceptionally inexpensive to operate.

The heat pump cycle

Calorex PP range

The PP range of air source hot water heat pumps are a quality range of packaged units specifically designed for hot water heating to 68°C and are the leading choice for heating and hot water in hotels, hospitals, industrial spaces, nursing homes, restaurants, schools and more. The PP heat pumps can be installed outside or in a plant room that has adjacent outside walls and can be supplied with high pressure fans for ducting.

WRAS approved

WRAS is a conformance mark that demonstrates that an item complies to strict standards set out by UK water regulations. This standard gives you peace of mind that approved products will not contaminate your water supply and are safe to use within their stated pressure and temperature ranges.

Typical installation diagram for Calorex hot water heat pump

Typical installation diagram for Calorex hot water heat pump


Related products

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Commercial water heating

PP air source hot water heat pumps are a quality range of packaged units specifically designed for hot water heating to 68°C.

Pro Pac 70 right
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Commercial water heating

Hot water heat pumps that can be installed outside or in a plant room providing cost-effective hot water solutions for hotels and hospitals.

Calorex Pro Pac 22 BC
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Commercial water cooling

Calorex water chillers are ideal for cooling water in a variety of applications including providing cold-water for showers in homes or leisure clubs and water for process cooling.

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