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Steve8090

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Hi
How many time's can you tee off 15mm ch pipes that tee off 22mm from the combi boiler? Thanks
 
15mm can do 2 rads k2 600 x 1400
 
Steve8090 said:
Hi
How many time's can you tee off 15mm ch pipes that tee off 22mm from the combi boiler? Thanks
Click to expand...

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