Example: Centralised System

If you own commercial premises with a high demand for heating and hot water, then an effective solution can be to link a number of heat pumps together in a ‘cascaded system’ fed by a central ground array.

High heat loads can be effectively met with a ‘cascaded system’ design, as the ground array, whether it be coiled slinky pipeboreholes or pond mats, is sized to deal with the peak heat demand.

Benefits of a cascaded system

The cascaded system design can flex between periods of minimum and maximum heat demand; for example during the spring and summer when the need for heat is lower, only one heat pump need be in operation, with subsequent heat pumps coming into operation as the heating season progresses.

Another benefit of the system design is that, depending on the heat pump selection, it can be configured to provide 60°C hot water at the same time without the need for an additional immersion heater.

Do you have a water source?

If your business premises has access to a stream, river, pond or lake, then you should consider using this as the heat source for your installation.

Water is an excellent conductor of heat and therefore water source ground source heat pump systems are extremely energy efficient.

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Do you have lots of land area?

Does your company own land? Then slinkies would be a viable option for a ground source installation.

Slinkies are the name given to coiled pipe buried in trenches at a depth of 1-2m where the ground temperature remains constant all year round.

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Do you have limited land area?

Boreholes would be the best option if your business is sited on an industrial park or in an urban area.

Boreholes can usually be drilled into any type of ground and are a perfect space-saving solution, as the depth of the hole(s) is varied to suit the heat requirement.

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Which RHI is right for me?

This scenario features a domestic and commercial property with a cascaded ground source heat pump system on a shared ground array.

This set up would be eligible for quarterly index-linked payments from the Non Domestic RHI for 20 years.

Don’t think this scenario applies to you? Click here for other options.

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Recommended Services

Kensa Contracting

Kensa Contracting provides a complete turnkey service from feasibility study, through to design, full project management as well as installation and commissioning. And of course the heat pumps are manufactured by Kensa Heat Pumps, too.

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Kensa’s MCS Umbrella

If you or your own preferred installer will be undertaking the installation, Kensa’s MCS Umbrella Service offers full MCS compliance for those who are not yet MCS accredited, or simply require design support.

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