A shopping editor saves money on heating bills thanks to the Marnur Electric Throw Blanket that’s currently on sale at ...

This king-sized heated blanket has two heat zones, each with its own controller, and it's 30 percent off for Cyber Monday.

Whichever way you slice it, an electric throw clearly costs a tiny fraction of the cost of turning your central heating on.

I want to know how much cheaper it is to use an electric blanket than it is to turn my central heating on, please. I have an electric throw, which is like a blanket with a heating element.