need help with partially unwired Jensen 24b wood boiler

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.

jjboi223

New Member
Oct 14, 2025
1
United States
Currently combating the task of hooking back up an old Jensen wood boiler that my grandfather had half disconnected around 30 years ago. I'm versed in electrical, but pretty new to HVAC and have no idea how to rehook up what I'm guessing is the aquastat for the draft fan. aquastat for the circulator pump is still connected to 110 but seems to run strictly to the pump straight off the mains. The line of fmc runs from the aquastat to the circ pump.
 

Attachments

  • [Hearth.com] need help with partially unwired Jensen 24b wood boiler
    IMG_0754.webp
    96.7 KB · Views: 2
  • [Hearth.com] need help with partially unwired Jensen 24b wood boiler
    IMG_0764.webp
    255.2 KB · Views: 2
  • [Hearth.com] need help with partially unwired Jensen 24b wood boiler
    IMG_0757.webp
    98.6 KB · Views: 2