Hi,
Looking to update the CH system in my Dad's 1960's bungalow and hopefully make it more efficient. It's three bedroom, with two of the bedrooms and the kitchen radiators having been updated to flow-return pipework a few years back. The rest of the bungalows Ch pipework was installed as a single pipe loop.
I was thinking of re-plumbing the radiators which were on the the single loop to flow-return, using as much plastic piping as possible to avoid soldering and save on cost due to copper prices.
The easiest way to re-do the pipework I thought, is to take it down the wall from the loft to each radiator, then box it in down the walls. I've just seen these on screwfix and thought they'd save me a lot of messing about.
I could connect one of these each to the 22mm pipe from the flow and return of the boiler. Then feed 10mm plastic pipe from the manifold to the radiators which need re-plumbing, and back again for the return flow.
The questions I have are:
1) Is this a valid way to redo the plumbing?2) Will this be ok seeing as the rads which are already flow/return are plumbed in with 15mm copper?
3) Are the manifolds any good/reliable?4) Can I take 10mm plastic pipe straight to the radiator valves, or should I change to copper for the run against the skirting board once I've run it down the wall?
5) Is there a better way of doing this?Thanks,
Jon