Adirondack case guy
Well-known Member
After a good productive day out in my shop yesterday, I went back out to load the wood boiler about 8:00 for the night. Had a massive blowout in the return line to the boiler. Not sure what caused it, but suspect it built up an air bubble that the piggy back circulator pumps, (one on wood boiler and one on oil boiler) couldn't push back down into the wood boiler and it air locked and then went to steam. There are also two PT valves, in the system, one on each boiler, neither opened.
Anyway, I just shut the auto feed pressure regulated supply to the system to stop more water from soaking my shop. Shut off the combustion air fan, and fire died down. Turned off all the distrubution system throughout the house and shop. The house only dropped to 67F this morning with everything shut down.
This morning I cut out the burst peice of Wirsbo heat pex and replaced it with a new one. (Glad that I have all my tools from when I was doing turn-key comercial buildings). Supplies and proper tools bailed me out on this dilema, as well as when my waterline from the well rotted out back a month ago..
There must have been a lot of pressure when it let loose, as it blew the drywall and fiberglass insulation that encased it on the beam,10ft across the shop. Some of the soggy insulation stuck on the wall above my overhead door.
The repair was quick and easy, but after I started reloading the system with water, and running all the zone circulators it took the rest of the morning to bleed off all the entrapped air. I have two manual air bleedoffs out in the shop and a auto air elininator down in the cellar on the oil boiler.
Refired the wood boiler after lunch and all is well, and saved a little wood. Also gave the bottom end of the boiler a good complete cleaning.
Loren
Anyway, I just shut the auto feed pressure regulated supply to the system to stop more water from soaking my shop. Shut off the combustion air fan, and fire died down. Turned off all the distrubution system throughout the house and shop. The house only dropped to 67F this morning with everything shut down.
This morning I cut out the burst peice of Wirsbo heat pex and replaced it with a new one. (Glad that I have all my tools from when I was doing turn-key comercial buildings). Supplies and proper tools bailed me out on this dilema, as well as when my waterline from the well rotted out back a month ago..
There must have been a lot of pressure when it let loose, as it blew the drywall and fiberglass insulation that encased it on the beam,10ft across the shop. Some of the soggy insulation stuck on the wall above my overhead door.
The repair was quick and easy, but after I started reloading the system with water, and running all the zone circulators it took the rest of the morning to bleed off all the entrapped air. I have two manual air bleedoffs out in the shop and a auto air elininator down in the cellar on the oil boiler.
Refired the wood boiler after lunch and all is well, and saved a little wood. Also gave the bottom end of the boiler a good complete cleaning.
Loren