glowworm boiler 24 cxi changing radiators

[falkaren]

Want to change radiators,tried to empty system to remove but low water pressure alarm light came on and no hot water .how do i empty radiators and still have hot water?Thanks

[Ed Sirett]

You generally have to operate the boiler isolation valves. However most manufacturers don't recommend this method of operation, so YHBW.

Otherwise you just have to get on and complete the work before someone else notices.