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Hello, I’m wondering if you clever people can help me track down some compatible TRV heads. I now have three that don’t work. The valves and pins work fine so I was optimistically hoping to be able to just replace the heads. They have British Gas or Celsia branding written on the top and I...

Hi, I've just moved into a rented flat, which has a Glow-worm Swiftflow 75/80 boiler. I've got a few really basic questions about the boiler, I have no idea about boilers or how they work. A manual would be extremely handy but I don't have one and that particular manual doesn't appear on the...