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The National Trust house is heated by seawater

May 22, 2014 Updated 06:01 BST

With fears about Russia's influence on the gas supply, the European governments are looking for ways to heat homes and businesses that are not dependent on the gas.

The National Trust presents the new project Thursday to suck the heat from the hot to one of the historic houses North Wales Sea.

Cooling a similar technique is used.

Analyst Roger Harrabin Reports environment BBC.