Pat, I posted a thread on the Monaco forum on replacing the IOTA transfer on our model coach. Glad to get rid of the IOTA and glad to have a combination transfer switch and surge protection in one box.
For info I had Roger Berke overhaul my Aqua Hot Webasto burner last December and it has run with NO smoke ever since. Now I know what these units are capable of. I think my starter electrodes were shorting out on the burner can, I don't think I was adjusting them correctly. Shipping my unit to Roger for overhaul was easy, I used his loaner unit in the interim, and it was inexpensive, about $230.