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Chelmer Heating Solutions

Water source heat pumps

Chelmer is able to offer alternatives to ground source and air source collection which allow heat collection from water sources such as lakes and small rivers. These take the heat from running water or from large volumes of slow moving water such as a small lake or large pond. Care is required when selecting this type of heat source as they may dramatically cool or freeze such areas during the winter months.

An open loop collects heat by drawing water from the source. It is then passed through a heat exchanger within the heat pump before it is returned to the original source. Careful consideration in the siting of these is most important; permission for extraction of water may be required from local river or water authority.

Pond plates sit on the river or lake bed, they are connected to the heat pump via flow and return pipework making the system sealed. Heat is extracted from the source in the same way as heat is extracted from ground loops. This method does not remove water from the source, however permission may be required from local river or water authority. The plates are fairly large at 2500 x 1000 x 300mm.

May be used for both closed and open loop systems and in some cases bore hole water may be used to provide domestic water once it has been filtered and cooled by the heat pump. However, bore holes are expensive, and we would suggest that they are only considered if no other option of heat extraction is available.

For more advice, more product informtion, and quotations, please contact Chelmer Heating Solutions

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