Recent content by Dannno

Thanks for the reply - I'm really sure it's not a cold pipe touching the heating pipe - we've checked everywhere and the hidden pipes are almost impossible to be touching (it also seems like it would need such a massive amount of contact to transfer that amount of heat to heat so much water) -...

I'm completely stumped on this one and so are the plumbers who installed the system. Would love any Sherlock-like ideas! Background: We replaced an oil-fired combi boiler with a new Grant 21 vortex oil combi boiler - relocating it to the floor above. At the same time, we also changed a...