Hi all
was hoping if someone could explain in layspeak the exact nature of my CH/HW system and the implications. Have inherited an old system in the new house and quickly ran out of money due to a quick install of a new boiler being required and so had to persist with the old setup. Have a new iflow CH motorised valve but an old Honeywell equivalent for the HW circuit. However the latter has been rigged to be permanently open. My heating engineer buddy was convinced that this was due to the piping in that half of the pipework around the boiler/cylinder not being long enough to allow for any pressure relief at the end of the timer cycle and so was wedged open in case there was some sort of bottleneck/blockage inside the motorised valve (unbelievably an isolator type valve was fitted inline in the pipework rather than the usual "red handled" one; I knew there was a pressure buildup at that stage of the cycle as I had to adjust the isolator valve to stop a vibration noise!!). So after that confusing description my question is: if the HW is permanently on in terms of the motorised valve is it just the cylinder thermostat that is controlling how much the boiler comes on for HW purposes? many thanks (PS I will obviously overhaul system after winter)
was hoping if someone could explain in layspeak the exact nature of my CH/HW system and the implications. Have inherited an old system in the new house and quickly ran out of money due to a quick install of a new boiler being required and so had to persist with the old setup. Have a new iflow CH motorised valve but an old Honeywell equivalent for the HW circuit. However the latter has been rigged to be permanently open. My heating engineer buddy was convinced that this was due to the piping in that half of the pipework around the boiler/cylinder not being long enough to allow for any pressure relief at the end of the timer cycle and so was wedged open in case there was some sort of bottleneck/blockage inside the motorised valve (unbelievably an isolator type valve was fitted inline in the pipework rather than the usual "red handled" one; I knew there was a pressure buildup at that stage of the cycle as I had to adjust the isolator valve to stop a vibration noise!!). So after that confusing description my question is: if the HW is permanently on in terms of the motorised valve is it just the cylinder thermostat that is controlling how much the boiler comes on for HW purposes? many thanks (PS I will obviously overhaul system after winter)