Bleeding Radiators

[linus1]

I need to bleed my radiators and have never done so before, so i have read about it on this website and in the forums, and i am pretty sure i know what i need to do.

however there is one thing i am wondering about and i havent been able to find this in any of the posts i have looked at, so sorry to create yet another post about bleeding radiators!

i live in a 3 story town house and have a combi boiler. should i be bleeding the radiators in any special order, ie start downstairs and work up or?

 

[chrishutt]

Order doesn't really matter, although same say work up from bottom. Remember you need to repressurise the system when the pressure drops as a result of the venting of air.

Why do you think you need to vent the rads anyway?

 

[linus1]

hi chrishutt,

i have a couple of radiators which are hotter at the bottom than the top which i think means i have air trapped in them.

i might have to look into it a bit more though if i need to repressurise the system as thats something im not sure about. currently the pressure seems quite high and the needle is above the 'preffered' range. i am not at home but from memory i think its around the 3 mark at present - so possibly venting the radiators will lower the pressure to a more ideal range? i am only guessing though.

 

[chrishutt]

Your right about needing to vent rads. Read the stuff in the FAQ topic about filling loops, etc. Sounds like your pressure might be too high - could be related to problem with air in system.