On 14/11/2013 17:58, David Hill wrote:
On 14/11/2013 16:56, Bob Hobden wrote:
I seem to be constantly buying and wiring up greenhouse heaters, came
home this afternoon and it's lucky I had a new spare in the garage. OK
they do outlast the guarantee but not by much.
Anyone found an electric greenhouse heater that I can wire into a
separate thermostat that lasts more that a couple of winters? Preferably
not one that costs a fortune as some I've seen.


-- Regards
Bob Hobden
Posting to this Newsgroup
from the W.of London. UK


I have a couple of these from Machine Mart that I have used for a couple
of years,
http://www.machinemart.co.uk/shop/pr...l-metal-heater
I don't use them with a thermostat but with a time clock to come on at
certain times in the night if needed, together with a couple of Gas heaters.
David

FWIW, I've been using bog standard fan heaters for years as greenhouse
heaters. They have always been connected via an ELCB, and are the
"flat" types that can't be kicked over. They seem to last years - I've
never had an element burn out, just a thermostat become inoperative
once. I've had a fan get stuck on occasion, but that was usually easily
fixed by a squirt of WD40.

I've often wondered about using a ceramic-element fan heater instead,
but the old heaters just seem to go on and on.

I would say that I started off using an upright type with built-in
oscillation, but the latter failed after a few months, and the thing was
easily knocked over. So now I use a non-oscillating fan heater
controlled by an external thermostat set at 1 - 2°C, in the coldest part
of the greenhouse. Just behind the heater I use a small (7")
oscillating fan which operates continuously winter and summer. I once
had one of these work without stopping (other than for power cuts) for
over 8 years!

--

Jeff