Extra radiators ???

[macka09]

Hi all, a custard wants to add 4 radiators to there existing system and is like to get the pipe work in before the boards go up. I was just gonna run a 10mm manifold off the 22mm flow/return and that gives me the 4 flow and returns for the rads does this seem like the best practice? It's an extension at the back of the house and all 4 rads are going in there and the out house. Any suggestions please?

 

[AWheating]

i would avoid manifolds unless the system is spotless. keep your 10mm runs to a few meters away from the rads if possible.

 

[macka09]

Hmm. So would teeing off the 22mm with 15mm then down to 10mm behind the rad positions be best?

 

[PlumbBobBob]

yes sounds good, you want as much flow as you can get without robbing from the rest of the system

 

[drip-dry]

so many variables here..But generally if you extend a 22 curcuit you should be ok ....unless the system is maxed out already..But sure you have checked boiler and pipe sizes of existing system and flow and return temps ,so should be ok....

 

[bright spark]

Is d boiler gonna be big enough?

 

[drip-dry]

Is d boiler gonna be big enough?

yeh..of course...fills the complete cupboard!!!

 

[macka09]

Lol. Out of the 4 rads the furthest from the boiler will only be 7-9 metres away. The current system only has 6 rads connected all in 15mm copper.