On Aug 20, 8:31*pm, Harry Bloomfield
wrote:
Tim Downie wrote on 20/08/2009 :

Any tips on cylinder jackets?

Tim

Yes, don't buy one.

Make sort sort of box, which doesn't cover/allows free airflow around
the immersion heater head (if it has one). Make it at least 2" wider
all the way around and fill the space with insulation. Much more
effective than a jacket.

Yet another option... if its in a small airing cupboard, the walls can
serve as 3 of your box sides, fill all the space with whatever
insulation you've got around. Dont insulate over the electrical wires
though. If you have no insulation, you will, it turns up in pretty
much all kitchen bins.


NT