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Seawater Heat Pump at historic Plas Newydd

28 May 2014Ground Source Heat Pump

History is again in the making at one of the finest old mansions in Wales with a new technology to heat the building from sea water.

Plas Newydd will soon have its collection of military uniforms warmed by a heat pump.

Previously the National Trust's most polluting property with an oil fired boiler, a 300kW marine source heat pump is expected to save the National trust around £40,000 per year in operating costs. The proceeds will be returned to invest in the conservation of the 18th century mansion.

Most heat pumps suck heat from the air or the ground, but in this case, the heat source is sea water, where pipes have been laid to extract the water from the sea and transport it to the heat exchanger.

The National Trust is implementing pilot scheme low-carbon developments across a 5 of its properties, and if successful, will invest in 43 further renewable energy schemes. Aside from the heat pump at Plas Newydd, the other schemes involve hydroelectric power, biomass and woodchip boilers.

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