House with Kensa heat pump

In the late 1990’s Charles and Patricia Lester bought an eight acre plot, part of a nine hole golf course, near the picturesque coastal village of Llansteffan in rural Carmarthenshire. Described as an “architecturally disadvantaged” building, the Lester’s wanted to turn the former unfinished concrete shell of a clubhouse building into a “palace by the sea” – but on a shoestring.


We specified a 16kW Twin Compact ground source heat pump for the project. Charles cleverly integrated it with his solar technologies, effectively creating a ‘heat battery’ system that charges the ground with solar energy. This design ensures a warmer return temperature to the ground source heat pump and superior performance, equating to very low heating bills and high returns through the RHI.


“If I was to offer advice to anyone thinking of installing a ground source heat pump, I would say don’t hesitate! It’s important to get advice from as many people as possible, but definitely talk to Kensa – they are experts and know what they’re doing. I would certainly recommend them.”

Key Facts:

  • Luxury 800m² self-build home with 20 rooms set in 8 acres of Welsh coastal countryside
  • Ground source heat pump, solar thermal, Solar PV, passive solar generated hot air circulation from conservatories and rainwater harvesting
  • 16kW Kensa Twin Compact ground source heat pump for space heating
  • 400m horizontal ground loop and two boreholes in their own meadow
  • Solar system charges the ground as a ‘heat battery’ for the ground source heat pump
  • 10 year build project using Kensa’s MCS Umbrella scheme
  • Eligible for Domestic Renewable Heat Incentive (RHI)

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