air in central heating system

[emmkat]

hello

is there a quick to get air from the system. i installed a new rad in a conservatory so added new pipework in the loft. turned on a nd im not getting heat to the new rad and two rads the other side of the bungalow. All other rads are hot so should i turn them off and wait for it to push through or is there a quicker way of doing it. and why would it be the two rads on the other side, One of these rads is where i drained from and one next to it.
Thankyou

 

[twgas]

Yes, turn off hot ones.
If you drained from the other two, believe it or not, it would have let air in as the water came out.