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Morning Folks, I drained and re-filled my central heating a few days ago, adding a litre of Fernox F3. (150 litre boiler so 2 x 500ml bottles of Fernox). Due to a deflated expansion vessel, we’d been refilling via the filling loop on an almost daily basis for a long time so the system has only...

Hi Folks, I've got my central heating drained and the boiler taken apart. (I'm swapping out the expansion vessel). The manual says to turn three water isolation valves off. Two of them are butterfly valves like this (photo) but I've tried *gently* to turn it towards me and it's not moving. I...

Morning All, I have a new primary (internal) expansion vessel arriving today for my Potterton Powermax HE 150 boiler. The manual says it should be set to 1.0 bar, however, I've seen it mentioned that's only for 'cold' pressures and that it should be set to 0.2 bar less, (i.e. 0.8 bar). I'm...

Morning Folks, Last week, I managed to get a radiator working that I believe has never worked since the house was built in 2007. Massive thank you to Dalalio on this forum who helped me with the problem. I've read the FAQ on re-pressurising and here's my plan for today. Would really appreciate...

Hi Folks, We moved into a house 18 months ago. It was built in 2007 and has a 2007 Potterton Powermax HE boiler. Eleven radiators in the house, various sizes. Against our better judgement, we took my mother's advice and turned off the radiators in two unused bedrooms, to prevent heating up...