I'm curious if any of you have experience with the Viessmann products (boilers, solar heating panels, indirect fired tanks, etc.) out there. I'm trying to expand my knowledge and thinking of going to their "academy" sessions, which introduce you to their products and help you learn the in's and out's of them. Never installed one of their boilers but I am becoming quite interested in the idea of it. Despite their recent recall, I've heard a few good things about them.