[Mikendebbie]

No - I put in a new IW60 to replace the original IW60 (which was not working after sitting un-used for 20 months - re: my sad story in post #2 above). But I have watched YouTube videos of people doing exactly what you want to do. Your water heater may be a bit harder to reach since it is behind the furnace. Take a basement wall down and make sure you can work on the back side of the water heater before you pull the trigger and decide to install it yourself.

Probably you most difficult task will be figuring out where to mount your control panel. I did not have to buy a new control panel - it was fine. Screen shot of a controller below. You will need to run 2 small wires from the heater to the spot where you want to mount this. I don’t know if your unit has any type of water heater controller. If you do - you can probably use the same wires.