Posted by jtown on February 12, 2000 at 09:34:29:
In Reply to: Re: Hot water baseboard/boiler banging, then shutdown posted by Tom on February 12, 2000 at 09:08:02:
Has boiler been blown down yearly at least? You may have insufficient flow of water to pick up heat, or overfired boiler if there were no small nozzles on the truck etc, so boiler gets too hot, making steam. Does temp gauge seem to work ok? Do you feel hot supply pipe 10' or so from the boiler/pump as in heat getting pushed by the pump with good flow, pump coupling ok etc? You may have localized steaming from excessive heat to a section or insufficient water from sediment to that section. How many feet of baseboard? Btu/hr rating of boiler should match nozzle and you want enough baseboard to get heat off the boiler. Try a 220F thermometer against the outlet with a rag around it to insulate it from the room to check the boilers temp, replace the temp gage if it looks off, doesn't swing smoothly or jumps some when tapped lightly.