Branching off pipe work

[Steve8090]

Hi
How many time's can you tee off 15mm ch pipes that tee off 22mm from the combi boiler? Thanks

 

[ShaunCorbs]

15mm can do 2 rads k2 600 x 1400

 

[Sparkgap]

Hi
How many time's can you tee off 15mm ch pipes that tee off 22mm from the combi boiler? Thanks

Hundreds of times, but depends on your flow rates
I normally say 15mm will take 5-6kW. What's the output of the circuits you're feeding?

 

[Last Plumber]

If it's a combi I presume it's a sealed system.
Roughly speaking I always think up to around 20000- 25000 Btu's / hr.
There are other things to take into account though pipe runs, distance, temp, Delta T's etc.

That's why I think it is always best to get an experienced Heating Engineer in. If you try and take too much, you'll wish you hadn't.