adding a radiator

[1IAN]

hi, i have a ferroli optima 701 gas boiler situated on the ground floor and want to add a radiator to the system, the boiler has 22mm pipe coming out and up to feed all the radiators from under the upstairs floor, my query is can i just tap into the 22mm pipe just under the boiler to feed a radiator i want to situate just a few feet away, the system is pressurised and uses 10mm pipe to feed each radiator, so do i just T off the outgoing 22mm pipe with 10mm and return to the return pipe with another 22mm to 10mm T.
hope that makes sense
cheers
ian

 

[Rob]

Pretty much. If it really is that close to the boiler then you'll need to balance the rad to prevent a short circuit in the system.

 

[1IAN]

cheers for the reply, the rad is 4 meters away [sorry, a little more than a couple of feet] and could you advise on how you balance a rad
many thanks
ian