New radiator, close to combi boiler.

[Andy7]

I need to install a radiator in a small new room I've partitioned off.
The new rad will only be about 1m from the actual boiler itself. (Worcester 24cdi)

I'm worried that if I tap the 22mm pipes coming from the boiler to connect the new rad, then it'll create a 'short circuit' in the water flow and all the pressure will flow through the new rad rather than onwards through the system.

I'm thinking about using microbore pipe, so that the pressure in the rad probably won't be so much.

Any clues, or am I just being over-cautious?

Cheers

 

[kevplumb]

I'm worried that if I tap the 22mm pipes coming from the boiler to connect the new rad, then it'll create a 'short circuit' in the water flow and all the pressure will flow through the new rad rather than onwards through the system.

thats what the lockshield valve is for

 

[Andy7]

Cool, thanks - found lockshield valves at my local Wickes, only £3.49... however, what's a lockshield valve and how does it work? Is it any different to normal rad valves which, I guess I'd just turn down to reduce the pressure.

 

[Andy7]

oh... just read up on radiator balancing. Yep, got lockshield valves already, plenty of them.

Thanks for your advice, that's going to solve some other problems I have now with uneven rad temps through the house after I installed three others in the new extension.