hydronic heat

Hi, I have an older cast iron boiler that’s still working like a champ. There’s a loop not controlled by a zone valve that is stubbed out in the garage, so water is circulating any time one of the other zones is calling for heat. This loop also pops out in a somewhat large basement room to a...

Hi gang. I'm proactively replacing my 21 year old Lochinvar (giddy up). I have attached an image of my current hot water and hydronic floor heat setup. Basically, the original installer mixed a top discharge with a side return instead of doing both at the top or both on the side. It really is an...

New Utica combi boiler in basement. I am reinstalling three old cast iron radiators on third floor for 600 sq ft tenant apartment (bedroom, bathroom, LR/kitchen). The rads had previously been supplied by steel pipes exposed in rooms running vertical through first and second floors (brick house)...

Hello! We have a hydronic heating system that appears (to my admittedly inexperienced eyes) to have some design and installation errors (no filter, expansion tanks undersized and upside down, air eliminator in the heating return instead of between the boiler and circ pump, ...). I would...