I have a central heating system with a piping layout that is obsolete - big bore pipes that go in one big feed/return loop (1" or 3/4" imperial pipes I believe). The radiators are tapped off the big bore pipe with 1/2" 'off shoots'.
The house is very warm in the winter and I don't have any issues with the pipes - they seem to work well - however...
A couple of years ago we had an extension built above the kitchen and garage - two additional rooms were added, two radiators were fitted but they don't really get very warm, and this winter these rooms have been decidedly chilly.
These new radiators were tapped off the big bore pipe using plastic 10mm push fit piping and my own view is the distance from the big bore pipes are just too great for them to circulate any useful heat.
Can anyone advise on plan A, B and C below:
Plan A - Fit a gate valve after the feed to the extension rads to restrict the big bore flow to force circulation to the extension and close it off bit by bit by trial and error until the rooms are warm
Plan B - Fit a Zone Valve controlled from a room stat placed in one of the extension rooms (i.e. divert full flow to extension til temp achieved then close extension pipes, reverting to original flow path)
Plan C - Rip up floor boards, dismantle archaic big bore system and install feed and return pipes
...or is there an easier more efficient fix? Any plumbers in the Swindon area interested in quoting me for this work I would be glad to hear from you.
As usual all help hints suggestions and advice very gratefully received.
Some (very basic) flow diagrams are hopefully attached if they are of help.
Once again, thanks in advance!
The house is very warm in the winter and I don't have any issues with the pipes - they seem to work well - however...
A couple of years ago we had an extension built above the kitchen and garage - two additional rooms were added, two radiators were fitted but they don't really get very warm, and this winter these rooms have been decidedly chilly.
These new radiators were tapped off the big bore pipe using plastic 10mm push fit piping and my own view is the distance from the big bore pipes are just too great for them to circulate any useful heat.
Can anyone advise on plan A, B and C below:
Plan A - Fit a gate valve after the feed to the extension rads to restrict the big bore flow to force circulation to the extension and close it off bit by bit by trial and error until the rooms are warm
Plan B - Fit a Zone Valve controlled from a room stat placed in one of the extension rooms (i.e. divert full flow to extension til temp achieved then close extension pipes, reverting to original flow path)
Plan C - Rip up floor boards, dismantle archaic big bore system and install feed and return pipes
...or is there an easier more efficient fix? Any plumbers in the Swindon area interested in quoting me for this work I would be glad to hear from you.
As usual all help hints suggestions and advice very gratefully received.
Some (very basic) flow diagrams are hopefully attached if they are of help.
Once again, thanks in advance!
My CH piping layout
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As far as I can tell without ripping floor boards up, this is how the pipes in my CH system are...
My Extension radiators (blue pipes)
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Currently these radiators dont work very well. I believe the distance from the feed/return loop...
basic diagram - radiator connection
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A basic view without showing compression fittings or lock sheld valves that shows how the...