gas boiler

Afternoon! Hoping that there are some people on these forums who may be able to let me know what's happening to this tank, and how big of a problem this is! As per the photos there is what looks to be corrosion on the bottom of what I believe to be an expansion tank, if I've got that right...

Hi, I have gas baseboard hot water heat with two taco zone valves. One zone in particular makes a loud knocking noise whenever the thermostat calls for heat. The noise is coming from the first part of the zone right where the zone valve is. I've been in the house for one full winter and I've...

Need advice on sizing a replacement boiler for my home. I believe I need a smaller boiler, however I am not a professional and obviously could be wrong. My contractor is insisting on installing a new boiler of the same size. He believes the replacement must be equal in output to the existing...

Hey guys n gals, here's a link for lots of service modes for those hard to find and they're in one place. And some breakdown / plumbing videos. Hope they help. https://www.youtube.com/channel/UCw_zZWenIieyJupl1RsqItQ