You will find that installation and "maintenance of unvented cylinders and associated controls is only by G3 certified people.
You will find that installation and "maintenance of unvented cylinders and associated controls is only by G3 certified people.
On Mon, 10 Sep 2007 16:16:42 GMT someone who may be "Jim Alexander" wrote this:-
Incorrect. There is much in them which is to do with maintaining services.
and in relation to routine maintenance of installed domestic unvented cylinders which chapter?
Jim A
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