Hi all,
i moved into a house (late 70's build) which was extended in 2003.
Originally, the downstairs radiators were supplied in 15mm copper with pipes in the screed. There were 6 radiators originally, and the extension has clearly tacked 3 more onto the end of the circuit. All in 15mm.
The radiators in the original part of the house do get adequately warm, but the newer 3 don't get hot enough until the TRVs in the older part of the house start to close - seriously underpiped.
I've balanced as much as I can but the first few radiator lockshields are close to closed, and it's making the boiler cycle more due to reduced flow, so it's not ideal.
One day i'll repipe the lot, but that's quite a big upheaval so it's not happening now.
One thing that I could quite easily do is add new (extra) flow and return pipes via the roof of the extension and drop down the wall and tee in to the tails at the most distant radiator. Then my flow and return pipes would be supplied from both ends.
It strikes me that, although not ideal, this might get me a worthwhile flow improvement. It seems a bit like a ring final circuit in wiring - where two smaller pipes (cables) share the flow.
Has anyone ever done this? did it work? am I wasting my time if i try?
i moved into a house (late 70's build) which was extended in 2003.
Originally, the downstairs radiators were supplied in 15mm copper with pipes in the screed. There were 6 radiators originally, and the extension has clearly tacked 3 more onto the end of the circuit. All in 15mm.
The radiators in the original part of the house do get adequately warm, but the newer 3 don't get hot enough until the TRVs in the older part of the house start to close - seriously underpiped.
I've balanced as much as I can but the first few radiator lockshields are close to closed, and it's making the boiler cycle more due to reduced flow, so it's not ideal.
One day i'll repipe the lot, but that's quite a big upheaval so it's not happening now.
One thing that I could quite easily do is add new (extra) flow and return pipes via the roof of the extension and drop down the wall and tee in to the tails at the most distant radiator. Then my flow and return pipes would be supplied from both ends.
It strikes me that, although not ideal, this might get me a worthwhile flow improvement. It seems a bit like a ring final circuit in wiring - where two smaller pipes (cables) share the flow.
Has anyone ever done this? did it work? am I wasting my time if i try?
