Gloworm Economy Plus F50 Boiler Temperature

[jg1975]

Hi i have just recently moved house and i am trying to adjust temps.

I have been told that premature boiler failure will occur unless the flow and return (at the boiler) is not set at approx 11 degree C diferential. The visible sight of plume also would indicate higher differentials.

Also i do have a stopcock at the cylinder which can be opened to allow circulation back to the boiler and therefore increase return temp.

Any thoughts or should i leave as is? (stopcock closed)

I havent got the boiler manual, so cannot confirm this reccomended temp difference, however it appears to be running ok with this closed!!!

Any Thoughts
Thanks

 

[gas4you]

What you call a stop cock is probably the bypass gate valve. This should be open about 1/2 a turn.

On an old standard efficiency boiler the temp dif should be about 11C.

This is acheived by balancing the rads with the lockshield valves and/or adjusting the pump speed.