Hi,
I was thinking of draining the CH system down as I have a few rads and valves to change but will be doing so over a few weeks and will still need hot water.
Have read a few posts which state hot water not possible if CH drained? What if the CH flow and return valves are both closed off before the system is drained - will this allow me to continue using the hot water as essentially the combi is isolated from the CH circuit so won't matter if it's drained or not?
Hope someone confirms this is OK as have been running the combi with the CH valves closed off as recommended by service engineer to eliminate the combi as a cause of a pressure drop in the system!
Cheers
I was thinking of draining the CH system down as I have a few rads and valves to change but will be doing so over a few weeks and will still need hot water.
Have read a few posts which state hot water not possible if CH drained? What if the CH flow and return valves are both closed off before the system is drained - will this allow me to continue using the hot water as essentially the combi is isolated from the CH circuit so won't matter if it's drained or not?
Hope someone confirms this is OK as have been running the combi with the CH valves closed off as recommended by service engineer to eliminate the combi as a cause of a pressure drop in the system!
Cheers