Hi, can anyone tell me the best way to check my heating system to tell if i have a vented system or a sealed one.Any help appreciated..
thank You
Colin[/b]
hi all. i have been having problems with my boiler making a noise and the overflow pipe pouring out hot water from tank in loft..a heating engineer came out and said i have a section off blocked pipe. he thinks its lime scale and sludge..will a product like fernox flush out the blockage or will i ne...