I want to fit a cylinder stat to my hot water cylinder as for some reason it
doesn't have one, but the cylinder is coated in a sort of foam insulation.
Presumably the thermostat would need to make direct contact with the
cylinder metalwork. Is it just a case of cutting/piercing through the insulation?
Thanks fir any help.
Thanks for all the info folks.
I could probably cut into the insulation with something
blunt made of plastic to save having a DIY disaster
of the worst kind!
I imagine there will be some instructions with the thermostat
when I buy it indicating the best positioning for it.
From what I can remember they are usually positioned about
half way up the cylinder.
Usually about third of the way up, higher & the tank is half empty before
the stat realises it needs a top-up, lower and the boiler is cycling every
time you fill a sink.
I cut the surface of the insulation with a stanley knife then scooped out the
foam with something blunt. Probably not necessary but I put some copper
based thermal grease on the back of the stat capsule to get a good
contact with the cylinder and cut a little groove in the insulation near the
stat to let the expanding wire fixing strap push it right onto the surface.
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