The layout inside the box (in the pic) looks great.
But I didn't know if I was looking that the guts of his R106H or not.?.
That parts list had prices from Ebay..?. (Where I get a lot of my DIY parts)..
Anyways, I hope you are going to post a bunch of pictures of your new H2O Heater!
I'll keep an eye open for your new project thread.
We'll all be waiting for your evaluation of the R106H hardware and your
opinion about the difficulty of a DIY build of a similar unit..