A new heating technology is being trialled by a conservation charity.
The National Trust for Scotland has installed disguised heating panels in Scots-tarvit cottage in Fife.
The 19th century property is hard to heat but it is hoped the new system could help.
Infranomic Far Infrared heating sends the heat out into the room where it is absorbed by all materials, including floors, ceilings and walls.
The conservation charity spends more than £1m a year on gas and electricity across the country.
Another property, Hill of Tarvit Mansionhouse in Fife, could cut heating bills by up to 45% when the system is installed.
Bryan Dickson, Head of Buildings from the National Trust for Scotland, said: "As a conservation charity, the management of our large estate, held on behalf of the nation, is challenging and costly so we are always looking to ways to help improve our buildings efficiency.
"The cottage had recently been vacated, after providing a home to a long term tenant, and provided the National Trust for Scotland, with support from Historic Scotland, the opportunity to complete an extensive fabric upgrade to improve the energy efficiency of the property and bring it up to 21st century standards.
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