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- 5 Oct 2019
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I have an old fashioned boiler with a vented hot water cylinder. There's a 3 port valve next to the hot water tank in the airing cupboard, where the circulation pump is also located.
I want to do some work on the central heating side while the weather's warm and ideally continue to use the boiler to supply hot water. To save me endlessly draining and refilling the system (as I won't get the job done in a day and would rather take my time), can I just use the valve to isolate the radiator loop?
I was thinking of disconnecting the outlet to the heating system and fitting a stop end and also disconnecting the power supply to the 3 port valve (as insurance against someone turning the central heating on by accident). I'd then drain down all of the radiators to allow me to replace some of them and some of the (nasty microbore) pipework.
Will this work?
Is it a really bad idea?
Are there any additional gotchas I should be aware of?
Thanks in advance.
I want to do some work on the central heating side while the weather's warm and ideally continue to use the boiler to supply hot water. To save me endlessly draining and refilling the system (as I won't get the job done in a day and would rather take my time), can I just use the valve to isolate the radiator loop?
I was thinking of disconnecting the outlet to the heating system and fitting a stop end and also disconnecting the power supply to the 3 port valve (as insurance against someone turning the central heating on by accident). I'd then drain down all of the radiators to allow me to replace some of them and some of the (nasty microbore) pipework.
Will this work?
Is it a really bad idea?
Are there any additional gotchas I should be aware of?
Thanks in advance.