I like it. You have me way beat on Y strainers and dirt separator. Of course... My system took out a circ on my DHW loop. Sorry.. but I was laughing at you. Or with you. It's Lambda control. You said Lambada.. which is a dance! http://en.wikipedia.org/wiki/Lambada Lambda... whole different ballgame. http://en.wikipedia.org/wiki/Lambda Do you WANT heat in that area. I quickly starting wrapping the heck out of my exposed copper. You won't believe how much 190 degree pipes will throw. I'm pretty sure I used www.zorrotools.com. Lots of different kinds of pipe insulation. I did a little at a time.. starting with the out leg of wood boiler.. figuring to wrap hottest stuff first. You're gonna heat up your buderus jacket to same temp as storage and tanks? probably not a big deal, as you won't have much loss at all because you went power vent on that, right? You're close.