radiator in consevatory

[young plum]

Hi i have been asked a question at work by someone with a problem and i dont have an answer,
He has recently had a radiator fitted in the conservatory it is in plastic pipe and it is directly behind the radiator in the living room.
He says either 1 gets hot and the other is cold or vise verser he cant get them both to be hot
any ideas appreciated

 

[brumylad]

if they both have thermostatic valves then the symptoms would make sense.

I would start by trying to get them both hot when each has the thermo valve set on max or even better the thermo head removed. I would alter the lockshield valve on the new rad until it gets hot.

 

[young plum]

He said he has messed about with the lockshield and he can get it hot but only one or the other its like 1 is starving the hot water from the other 1

 

[JPC]

it might be u need to close down some of the other rads , using the lockshields so as to force more water to these 2

is it microbore ?

 

[weareleeds]

First of all it is now against partl to fit a rad in conservatory unless it is deemed to be part of house ie no door between house & conservatory but i bet he has connected into 8mm pipes which will not carry enough flow to warm 2 rads unless very small

 

[JPC]

the bc i saw the other day said its ok but has to have a trv ?