Rads in loft

[WaterGeeza]

I have recently installed two small rads in my loft but the f&e cistern is lower than the rads. I have extended the vent pipe so it is higher than the rads and they are now getting hot but is this ok long term ? i was going to put a check valve on the feed pipe to stop it trying to push water and air back in the cistern. Failing that i can lift the cistern a bit but have been told it can\\\'t be higher than the CWSC. If any one has got any other tips they would be much appreciated

 

[kevplumb]

can't see how raising the vent would make any difference if the cistern is lower than the rad's

either raise both or convert it to a pressurised system

don't think you are allowed to fit valves on the cold feed

 

[WaterGeeza]

Is there a way i can just convert the central heating system that is in by adding expansion vessel etc ?

 

[kevplumb]

what's the boiler ?

 

[WaterGeeza]

I will get some more info

 

[nstreet]

what's the boiler ?

Its normally a big white lump that turns cold water into hot, a bit like a big kettle

 

[masona]

I'm sursprised kev didn't know that

 

[WaterGeeza]

Hi Kevplumb

The boiler is a Lotus classique i think, about 8 yrs old approx.

The rads in the loft are working a treat even though they are higher than the f&e cistern, they get really hot like all the rest. Like i wrote earlier, i extended the vent pipe and turned the pump up to #3. The F&E cistern does not seem to get any hot water going back in.
seems like it works fine but do you know if any probs may occur as a result or is there anything that you would be suspect of ?

I was surprised it worked, I thought it would constantly circulate through the f&e.