Combi plumbing

[pwhalley]

Hi Everyone,
I am installing some new pipework for the central heating (in the loft) ready for a combi to be fitted.
Do I need to put in an air bleed pipe in the return leg, or is the venting all done by the boiler?.The boiler will ultimately be below the loft floor.
Cheers

 

[Gees]

I am not a heating engineer

You will need a bleed at the highest point on your system. This is usually a rad but not with your system?
Belt and braces put a bleed in both flow and return at their highest pionts.

Hope this helps..