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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Removing Old Microbore Radiator
I have a very old microbore vented central heating system and I need
to remove a radiator whiles the wall its mounted on is removed. I wondered if instead of draining the system I could conpress the pipes , cut then bend to seal, maybe solder ? Also what size pipe is old microbore. It looks around 8mm but everything else in the system is not metric so I don't suspect this is. (1/2" and 3/4"). Also can you get fittings to fit a new radiator onto the old system. It will eventually all be replaced when I have more money Thanks Steve Jones |
#2
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Removing Old Microbore Radiator
Stephen Jones wrote:
I have a very old microbore vented central heating system and I need to remove a radiator whiles the wall its mounted on is removed. I wondered if instead of draining the system I could conpress the pipes , cut then bend to seal, maybe solder ? Also what size pipe is old microbore. It looks around 8mm but everything else in the system is not metric so I don't suspect this is. (1/2" and 3/4"). Also can you get fittings to fit a new radiator onto the old system. It will eventually all be replaced when I have more money I did this with a radiator I wished to remove (room warm enough, in irritating place. Took a pair of sturdy mole-grips, two bits of flat steel 1cm*4cm, and squashed the pipe between them. Removed radiator (after draining using plugs), with a trimmed ice-cream container used to collect remaining water after unscrewing pipes. Resulted in a couple of drops per second. When the radiator was removed, there was better access, so I could flatten the pipes better, then they were bent over at the flat portion, and recompressed. Has not dripped since. |
#3
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Removing Old Microbore Radiator
You can probably get fittings OK. If the valves work just close them on
either side of the radiator, disconnet the valves from the radiator (draining it in the process) and the job is done. If you are luck you will be able to connect the new radiator to the old valves (if they are fit) and away you go with out bending pipes. You may want to replace/fit a TRV though - you can get new valve heads for some models to replace the old ones. "Stephen Jones" wrote in message om... I have a very old microbore vented central heating system and I need to remove a radiator whiles the wall its mounted on is removed. I wondered if instead of draining the system I could conpress the pipes , cut then bend to seal, maybe solder ? Also what size pipe is old microbore. It looks around 8mm but everything else in the system is not metric so I don't suspect this is. (1/2" and 3/4"). Also can you get fittings to fit a new radiator onto the old system. It will eventually all be replaced when I have more money Thanks Steve Jones |
#4
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Removing Old Microbore Radiator
"Harry Ziman" wrote in message ...
You can probably get fittings OK. If the valves work just close them on either side of the radiator, disconnet the valves from the radiator (draining it in the process) and the job is done. If you are luck you will be able to connect the new radiator to the old valves (if they are fit) and away you go with out bending pipes. You may want to replace/fit a TRV though - you can get new valve heads for some models to replace the old ones. "Stephen Jones" wrote in message om... I have a very old microbore vented central heating system and I need to remove a radiator whiles the wall its mounted on is removed. I wondered if instead of draining the system I could conpress the pipes , cut then bend to seal, maybe solder ? Also what size pipe is old microbore. It looks around 8mm but everything else in the system is not metric so I don't suspect this is. (1/2" and 3/4"). Also can you get fittings to fit a new radiator onto the old system. It will eventually all be replaced when I have more money Thanks Steve Jones Sorry, forget to say the radiator is not going back since the wall its mounted on will be going. I might try and move it to another wall temporarily, depends how difficult it is. Eventually the whole central heating system will be replaced, probably with standard 15mm. How do you drain down a vented system. I have only ever drained a combi boiler. I seem to have two large header tanks in loft. Thanks |
#5
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Removing Old Microbore Radiator
How do you drain down a vented system. I have only ever drained a combi
boiler. I seem to have two large header tanks in loft. It's slightly easier than a sealed system, as there is already a way for air to get in at the top. Just tie up the ballvalve/turn off the water supply and open up the drain cock at the bottom (preferably with a hose to a nearby drain). Any 'U's (such as drops to downstairs radiators with concrete floors) should have separate drain cocks. Christian. |
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