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I live in the Croydon area and am looking to fully install UPVC double glazing in my home. My property consists of 7 windows (including one small toilet window), a patio door and a front porch (door and three 6ft x 2 ft panels set in porch brickwork) From reading other posts and doing some...

I have recently developed a problem with my Potterton Netaheat 10-16 and Gloworm programmer. Despite the programmer's manual switches being switched to the "Off" position the boiler continuously fires up and heats hot water. The central heating system seems unaffected and the radiators...

I have the above Netaheat boiler and an old fashioned (20 years old!!) Glo Worm mechanical/electric programmer. About 2 weeks ago I found that I was unable to stop the boiler producing excess hot water, even after turning the programmer hot water control to 'OFF' the boiler continued heating...