In article ,
tony sayer writes:
No they don't!. The one we have is fine except when it gets down to say
less than 2-3 deg c when it spends a lot of time defrosting itself which
means that its taking quite a bit off the mains in order to so that, but
anything above those temps, its fine.

Same with mine. Useful if you are working at home and only want
to heat that room too, rather than the whole house.

--
Andrew Gabriel
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