ChatterBank2 mins ago
Bleeding Radiators
Hi all
When bleeding radiators, do I do it while the heating is on or off? Also I have heard I start downstairs first. Is this correct?
Thanks in advance
When bleeding radiators, do I do it while the heating is on or off? Also I have heard I start downstairs first. Is this correct?
Thanks in advance
Answers
Best Answer
No best answer has yet been selected by slid_away. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.I always think it makes sense to have the heating on. The pump going helps to push the air out of any badly designed runs or "dead legs".
Everyone has their own way. I don't think it matters where you start, as I usually go back to the beginning and start again in case I've pushed some more air around the system.
Everyone has their own way. I don't think it matters where you start, as I usually go back to the beginning and start again in case I've pushed some more air around the system.
Turn the heating off. (You're trying to get rid of air in the system. Working with the heating on could put more air into it!).
Bleed downstairs first and, if necessary, don't forget to top up the boiler!
http://www.ultimateha...eeding_a_radiator.htm
Chris
Bleed downstairs first and, if necessary, don't forget to top up the boiler!
http://www.ultimateha...eeding_a_radiator.htm
Chris
Pump running. All valves open (2-port or Mid-Pos valve) so Cyl stat. and Room stat. calling for heat.
Start at highest rad or air pocket near Boiler first. Then nearest to pump working away. Often there is a bleed in the top of the boiler exchanger.
Check the primary cylinder feed too .. there should be a bleed near the top of the coil entry to the cylinder.
Keep pressure topped up to around 1-11/2 bar (warm) if pressurised system.
Start at highest rad or air pocket near Boiler first. Then nearest to pump working away. Often there is a bleed in the top of the boiler exchanger.
Check the primary cylinder feed too .. there should be a bleed near the top of the coil entry to the cylinder.
Keep pressure topped up to around 1-11/2 bar (warm) if pressurised system.