I have a cupboard under my stairs where my beer, and the good lady wifey's wine ferments. I lagged this cupboard with polystyrene board so it insulates very well.
The warmer consists of a wickes central heating thermostat, a light fitting and 100watt bulb, some light cable and a plug. It's not too exciting but this will keep my precious alcoholic beverages, and their yeasts. nice and happy

It's tested and works a treat

