Steve-w

Here ya go. Its made by B & B Molders Link

Edited to correct some info and add link to recall on that BCC. That is the Battery Control Center it was manufactured by Wurth...

Fat fingers got me again 😎. Should have read sleeve over (thanks 5picker). Hope that makes more sense.

It appears that there is not enough flow from the kitchen faucet to trigger the flow switch in the water heater. You may have a blockage...

Those are vacuum lines to control the dash HVAC system. They are what control the damper doors to direct Heat/AC to upper/lower/defrost...

Glad you were able to resolve this. Thanks for letting us know the resolution.

It is the standard way of doing what you want to do. You will need to keep the supply valve on the tank you are not wanting to draw from...

The connection you labled as #1 is a liquid fill port. If you could find/make a hose like you propose the 5 gal tank will be suppling...

The first link you provided is the same doc I attached a screenshot of (the page numbers match). The second link your posted labeled...

Definitely gonna be be a stretch to find that person. I would imagine finding a base plate would be the same. In the end would the...

The link to manual you provided is for the 2021 model year. The 2001 manual page is as below.

You will need to determine the wire you need to connect the red wire to by tracing it from the display panel to the tank. As I said...

Typically those type of tank sensors go to a resistor block. The resistor block (all may not the same) has 5 wires (4 actually go into...

Possibly a 2861DS, that's the closest floor plan to what is in the profile. The router is used for remote (typically local WIFI) to...