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Hi. I have an old Rayburn OF7 and have been running the boiler dry for years since installing central heating (inlet and outlet open). It tended to run too hot even with the high fire screw adjusted right out so I was advised to fit a 6 inch burner from an AGA. I have done that but it is a...

Hi, I have an unusual system in that I have a Rhino boiler in series with a Rayburn connected to my radiators. I am need to fit an overrun stat as there is no gravity run from the boiler, (there is from the Rayburn) only a pumped system. When the boiler cuts out from the room stat, the pump...