Hi there,
Can anyone tell me what the building regs say about replacing a boiler in an existing house over 150m2?
I have two quotes from corgi registered plumbers. One says I have to establish two zones that can be independently controlled in terms of temperature and time (involving two sets of new controls, zone valves and much work on the pipe layout, as well as TRVs), the other is equally adamant that this is for new-build and that TRVs on all the radiators is enough.
Both recommend upgrading from a gravity-fed to a closed system... Fine. TRVs on most of the radiators... Also fine. But a couple of thousand quid in work to zone everything seems way over the top.
I cant find a definitive answer online. As an amateur, the building regs seem intentionally complicated/ambiguous. Even a call to the building inspector was met with "I've no idea".
Any help/advice would be much appreciated!
Can anyone tell me what the building regs say about replacing a boiler in an existing house over 150m2?
I have two quotes from corgi registered plumbers. One says I have to establish two zones that can be independently controlled in terms of temperature and time (involving two sets of new controls, zone valves and much work on the pipe layout, as well as TRVs), the other is equally adamant that this is for new-build and that TRVs on all the radiators is enough.
Both recommend upgrading from a gravity-fed to a closed system... Fine. TRVs on most of the radiators... Also fine. But a couple of thousand quid in work to zone everything seems way over the top.
I cant find a definitive answer online. As an amateur, the building regs seem intentionally complicated/ambiguous. Even a call to the building inspector was met with "I've no idea".
Any help/advice would be much appreciated!