New Rad

[matchdayblue]

Hi - I have a Vaillant Ecotec 28HE Boiler installed and following revamping of ground floor layout need to add an additional radiator. The existing system is 22mm flow and return pipes upto and within the first floor void with individual Tees and 15mm pipework connections to first and ground floor rads. The new rad will be positioned approx 2M from the boiler. Will there be any potential problems with Teeing into the 22mm flow and return pipes approx 700mm above the boiler connection points. If ok, with rad being so close to the boiler would 10mm copper microbore instead of 15mm help with balancing of the system? or make no difference?

 

[jefaz]

Shouldn't make a difference as the long as the system is balanced properly afterwards. I'd stay away from microbore though.

 

[chris watkins]

So long as the new radiator is not over around 3000 Watts output (3kW) 10mm flow & returns will be fine (just look at the water ways through the TRV), you are using a TRV an't you ?
You will still need to balance the rad by closing the lock-shield right down to achieve a 20 deg drop across the F&R.

 

[jam1979]

agreed with all the above i did this a while ago adding 2 rads to a system and both worked fine

 

[matchdayblue]

Rad approx 1.8KW and yes TRV will be fitted - Thank you all.