Modern hot water cylinders tend to be factory fitted with solid foam insulation or an insulated jacket. However if yours isn’t, or it still gets hot to the touch, you could start saving now by fitting a tank jacket or extra insulation. It’s easy to fit yourself, the materials for the whole lot will only cost you around £25, and you’ll save £60 a year.
 
While you’re at it, why not insulate or lag all hot-water pipe-work that you can access – in the winter this means that your heating will have to work a tiny bit harder (although your pipes are less likely to freeze), but in the summer you’ll save at least £10.00.
 
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