Filling up new rad system in extension...

[diybristol]

Hi, I have just plumbed in 2 new radiators and a towel radiator all on flow and return set up directly to boiler...

I was wondering when I let the water in do I do one rad at a time, or all 3 or have to stand by each one with valve off etc?

Also on the top of the radiator you get a cap and bleed valve, do they matter which side they go on (i.e same side as TRV?)

Thanks

 

[ChrisR]

Fair questions, but none of those things matters.
Just make sure the pump isn't running when you do it.
Run the pump (boiler set to min so it doesn't light if you like) afterwards for a couple of hours and then rebleed. Bang the rads to dislodge bubbles.

If as you should you have Inhibitor in there you'll get foam out of the bleed points, let it run until water comes out.