Thermostatic rad valves


Postby wingrider » Sun Mar 30, 2008 7:13 pm

I am going to fit thermo rad valves to my system, I have heard that it is necessary to leave one radiator without a thermostatic valve to prevent the flow from the pump having nowhere to go if all the rads were to shut off at the same time.

Is this correct ?
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Postby htg engineer » Sun Mar 30, 2008 7:46 pm

Yes that is correct, although some boiler have a bypass built in.

It's normally the bathroom radiator or the radiator in the same room as the room thermostat that would be left with the normal radiator valves fitted.
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Postby wingrider » Sun Mar 30, 2008 8:17 pm

Thanks, thats just the info I needed.
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