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Using this neutraliser - can the cold pipe from the oil fired side and the return from the radiators be a 'common' pipe or will I need to dig up this joint and pipe these flows seperately to the neutraliser? Cheers guv

:shock: Cheers Oilman - don't worry 'bout me being embarassed, that's the way I learn things, as long as it doesn't blow up and kill the family! I looked at the neutraliser and the layout shown on the first diagram looks suspiciously like the one I should have. It also means that I can...

The oil fired central heating has a pump. The hot water cylinder is on a spur off of this circuit and the new range is connected to this spur. I increased the speed of the pump last night (from 1 to 2) and the noise didn't come back - but then I didn't have the range piled up with as much coal...

I've just added a range with back boiler to my existing central heating system - which is oil fired. Everything runs great until the range gets up to temperature, that's when the water hammer starts. The original piping to the hot water cylinder is 22mm and this is what I've connected the...