Well, it's up and running! Had some minor "traction" issues withe the Magic Liberty Bus
but we got that all sorted out, yanked the old Central Boiler unit (which immediately disappeared in the back of a friend's dump truck), set the new G200 and fired it up. Wanted to use my old pumps (Taco 007) but they decided not to cooperate, leaking just as bad as the old boiler
, so replaced with new Grundfos (which is a better pump anyway).
First photo is the old junker, second is the new unit in place (temporary until spring), third is the first firing (little smoke, mostly condensation from the cold water jacket and ambient moisture from the day and the road trip, fourth is the refractory chamber after the first load fired off. I just missed catching the gasification burn but the little coals are still glowing. If anyone is wondering about why we didn't put the new unit on the old slab - the piping arrangement for the old and new are completely different. I will be putting in a new slab in the spring, if I can't convince myself to relocate the entire unit to another part of my yard, next to my garage. The white PEX that we didn't hook up, goes to my as-yet-unfinished garage and will be hooked up soon. The G200 appears to be oversized for the current heat load but will be perfect once I have everything else hooked up that needs to be.
I'd been cutting and splitting all my wood to 20" and that's perfect for the G200 firebox.
Sufficient adult beverages were consumed following the initial firing and during the "monitoring" phase of the process.