Hi,
Thinking it's time to replace my 21 year old boiler, this summer.
It's been very good, just two thermocouples and a new pump in all those years.
The plan is to get a CORGI man to disconnect the gas from the old boiler and then do the rest myself, after all I am an electrician.
I did ido the complete original installation.
The boiler supplies to sets of manifolds, each one controlled by a two port motorised valve, each valve controlled by a room thermostat, one for upstairs and one for downstairs, essentially a two zone system, 3 if you include the hot water system.
My proposed plan is to keep the two zone system as it is, each radiator is fed from the manifolds with 10mm copper pipe, with normal valves, not TRVs.
So replace the boiler and flue, provide new 15mm cold water supply, new 15mm hot supply to existing hot water distribution in the house.
Get CORGI man to reconnect.
At the moment the wiring is, live to the thermostats, then to the end switches of the motorised valves, so if any of the valves open a supply is sent to the boiler/pump.
Will I be ok to reuse my existing system?
Am I allowed to do all the non CORGI work myself.
Not sure which boiler to go for yet, any suggestions/recommendations, three bedroom detached, boiler in garage.
thanks for reading, any help/suggestions appreciated
al