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Project specification

  • Property type: Residential
  • Technologies installed:
  • Collector type:
  • Size (kW): 34
  • New/retrofit: Retrofit
  • Brand: CTC

Chelmshoe House is a Grade II listed farm house built in the early 18th Century and is now a private home. The owners of the house had previously considered biomass as an option to replace the house’s old oil boilers. However, they were keen to find a renewable option that required less maintenance and did not require regular deliveries. When the owners met isoenergy at the Listed Property Show they were introduced to the possibility of installing a ground source heat pump as an alternative to biomass to provide all of the heating and hot water for the house. The benefit of a heat pump is that it requires much less maintenance than biomass and no deliveries of fuel.

isoenergy specified designed and installed a 34kW CTC ground source heat pump system to provide heating and hot water to the house. Energy for the heat pump is sourced from a nearby field by installing almost 2km of pipe in the ground whilst avoiding a listed dove cote.

Some additional works were required during the installation aspect of the general upgrade of the house and to improve performance of the heat pump. A new three phase power supply was installed to run the heat pump and a new cold water supply was run to the house. This cold water supply was to aid the switch over from an open vented hot water system to a pressurised system providing much improved pressure through the hot and cold taps.


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