Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Penn R21AD-1

Options
[Deleted User]
[Deleted User] Posts: 0
in THE MAIN WALL
Does anyone have or know where to find information on this old Penn Solid State, Indoor/Outdoor boiler staging control. Thanks

Comments

  • Steamhead
    Steamhead Member Posts: 16,888
    Options
    I think

    the old Penn Electric Switch Co. is now part of either Johnson Controls or Baso. Try them.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
This discussion has been closed.

Categories