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residential Case Study Ground source heat pump replaces oil boiler & Aga

17th Century Farmhouse

Key Points:

  • £3,000 annual fuel bill cut to £1,400
  • £2,200 installation grant
Mr and Mrs Hart-Davis live in a 17th century farmhouse in the beautiful Cotswold village of Uley, Gloucestershire. Their existing oil fuel supply had warmed their long narrow farmhouse and Aga at a cost. In 2007 with their annual fuel bill at nearly £3000 and rising, they called us in.

The farmhouse had plenty of land around it. We recommended installing a ground source heat pump. This involved digging five 50 metre trenches in an adjoining field. “Slinky collectors” (a long series of coiled pipes) were laid in the trenches, they were linked to the house via a trench cut through the lawn, and a Dimplex heat pump was installed in the house. Within a matter of months, there was no visible exterior evidence of the installation. The heat pump was connected to the existing radiators.

Once the system was installed, they dispensed with their oil-fired Aga, and insulated and double glazed the farmhouse.

The cost of the installation was £11,450. With savings of £1,600 pa and rising, this will be recouped in 7 years.
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Ground source heat pump replaces oil boiler & Aga
“Now the whole building is as warm as we could wish, all the time: the wood burners are in honourable retirement and we reckon we are saving £1600 a year on oil.”
Open QuoteIn the old days we had the heating on for a few hours morning and evening, and in between we dashed from one wood burning stove to another clad in thick jerseys. Now the whole building is as warm as we could wish, all the time: the wood burners are in honourable retirement and we reckon we are saving £1500 a year on oil.

Mr. & Mrs. Duff Hart Davis

Dimplex Approved REAGlobal Listed Microgeneration GSHP Association