Installing Combi + CH

C

cb9002

Hi

Please allow me to ask a few more questions!

When notching joists for 22mm feed/return, I plan to take up the floorboards, use a circular saw set at 25mm to make two cuts, then knock out the block with a chisel. I then plan on putting in the pipes on hair felt and placing a nail plate on top.

1. Does that sound about right? How do I get the pipes under the joists that support the solid walls? I'm presuming its easiest to drill them with a spade bit and thread the pipe through.

2. Where can I get nail plates from?

Drainage for the boiler will be through a soakaway, which I believe has to be 500mm from the house.

3. How would I get the pipe there without people tripping over it (it will be under a path)? I was going to go through the wall just above the damp course, a vertical drop to under ground level, and then underground to the soakaway.

4. Can I run the pressure-relief pipe to join the condensate pipe? I could use a tundish if necessary.

Thanks for your time

cb9002
 
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