Correct way to isolate hotwater with a combi

[flyingsparks]

I presume the way to isolate the hot water supply when its fed by a combi with no hot water cylinder, before I undertake a bathroom refit is to turn off the main cold stopcock and then isolate the boiler electrical supply? Thanks.

 

[newbuildinstaller]

or if you want your cold left on, close the cold inlet valve under your combi!!

 

[BlueMoonMole]

Seems though nobody has replied....

Yes!

However, don't isolate below the boiler (on the jig) as they almost always leak!

Hot water sequence begins with a flow of water. If you prevent the flow, we have no sequence.simples.

 

[Stamina]

yes

 

[flyingsparks]

Thanks all!! All replies at 7:05!