On my CH system I have 22mm (I think) pipe going to microbore manifolds. Off the manifolds there are 7 feeds each going to the 7 rads in the house. Each rad has a normal twist valve at either end but there are not TRV's. If I shut off all the feed valves on all the radiators (and the returns come to think of it) what would happen? The way I see it is that the pumped water can't actually go anywhere?
Pump overrun
- Thread starter mk2phil
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The pressure will build up until your house explodes
Alternatively, there might be a by-pass pipe hidden under the floor or in the airing cupboard for this very eventuality.
Generally, the radiator in the room with the wall thermostat in it has no TRV and should never be turned off, to prevent this happening.
Alternatively, there might be a by-pass pipe hidden under the floor or in the airing cupboard for this very eventuality.
Generally, the radiator in the room with the wall thermostat in it has no TRV and should never be turned off, to prevent this happening.
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