I bought a nice little 2kw fan heater with frost setting from Curries for
around £12.00 thermostat is accurate to around 5 degrees, and at that price
you can dump it after a year if you need to( and remember it has a 12 month
guarantee which doesn't specify domestic use ).

OK as long as you don't water it.

I looked at a few around £0.00 to £40.00 and their stats were lousy.

--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk