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Had my gravity heating system replaced with a pumped system. The gravity system had an expansion radiator in the bathroom adjacent to the airing cupboard/hot water tank. The expansion radiator has been re-piped into the pumped system, (I was told as per requirements).
Now the the system is up and running it has become apparent that there was a second expansion radiator in the system in a bedroom adjacent to the bathroom, which is part of an extension. Apparent because this radiator heats up when only the hot water is programmed to be on. i.e. heating off.
The installer has now changed his tune and saying this is okay and can be overcome by just turning the thermostatic valve on the radiator off.
Is this acceptable? Is it allowed in a pumped system?
Now the the system is up and running it has become apparent that there was a second expansion radiator in the system in a bedroom adjacent to the bathroom, which is part of an extension. Apparent because this radiator heats up when only the hot water is programmed to be on. i.e. heating off.
The installer has now changed his tune and saying this is okay and can be overcome by just turning the thermostatic valve on the radiator off.
Is this acceptable? Is it allowed in a pumped system?