W
WendyH
Thanks Reg Man. What's your reasoning for suggesting indirect for the solid fuel? Yes, that circuit will be gravity fed and no, I wouldn't dream of using plastic for the expansion/header tank. This installation isn't in the UK, so I can't phone my local HETAS-registered engineer, but I will probably be sourcing the hot water cylinder here because of price and availability. How do I tell whether a cylinder is suitable for a gravity circuit?