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Hi all, To put this query in the 'Lectrics forum or not....oh well, you boys know your stuff so here goes... Is there a specific length of immersion element for a specific cylinder size? I ask simply because I wondered whether the 27" was the correct one to replace my existing immersion in...

Hi boys, Potterton Promax HE Store boiler in one of our managed properties shows a fault code E15. Can't find a decode for that one on the Potterton servicing and installation PDF. Anyone know what the code might refer to? The tenant gets hot water, and only had the control switch set on that...

Hi to all, I visited a property recently while carrying out my duties as a Property Manager. The place has an unvented HW cylinder installed with a stand alone expansion vessel. My concern is that the expansion vessel sits on top of a 15mm leg - about 15"or more in length - of copper pipework...

Hi to the experts on here, I've read through quite a lot of the Forum pages regarding extensions, but I'm daft and can't get my head around what is the best way to do this. I was asked by an elderly neighbour to put in another extension so that, effectively, she would then have 3 points to...

Hi all, I've just decorated, and in doing so I temporarily isolated and removed two radiators. The boiler guage before removal was a bit low(?) at about 0.5 bar. On refit and bleeding the radiators (boiler off) I recharged the system via the TFL to 1.0 bar. Heating up all fine, and pressure...

No doubt this has been asked plenty of times, please excuse my ignorance in not finding a suitable thread on this so far. Vented central heating and hot water system, Y plan, Grundfos Selectric 15-50 circulating pump.... Boiler (glow worm) making some knocking and banging noises. My...