Central Heating plan

[Crunchieladie]

Hi
Firstly I'm not a plumber or an artist .......
Could you guys look at my sophisticated plan and tell me if this is correct, advice would be much appreciated.
My situation, concrete floors, boiler downstairs I have 4 rads up and 4 rads down and will be running copper solder. Is it possible and to run a 22mm c shape under the upstairs floor boards then tee off in 15mm to each individual radiator. The 15mm will tee upwards to the bedroom and tee down the wall to the bottom of the downstairs radiators. The house is back to brick so the 15mm downward pipes can be hidden behind the wall. Is my design efficient in terms of heating all radiators effectively. Is there a better way to do this ? Do you know anything about a compression flexi fitting at the back of radiators to hide pipes I believe new builds use them. Thank you

 

[SJB060685]

Providing 22mm primaries are bigger enough, which for a dwelling that size they should be then that's fine. Cutting and notching joists requires it to be done properly though, something I'm not familiar with as I'm not an installer

 

[SimonG]

The new build fittings you are on about are for 10mm plastic pipe. Looks a bit like an electric outlet box. Allows a neat and sealed finish.

 

[Ric2013]

Can't see anything wrong with it to be fair.

If you want to hide pipework behind rads, you could reduce to 10mm speedshit immediately behind the radiator. If you are chasing in the wall however, why not come out from the wall horizontally directly into a valve elbow, European style?

A matter of taste as to whether you like this style or not, I suppose.