My biomass 60 has been great, but as much as I love it, it is time to tear it out. I didn't want to say anything here in case it did not happen. Several months ago I was contacted about beta testing a new boiler. It's a collaboration between a couple of dealers. And made in the USA! They wanted someone with experience running a boiler that would speak their mind and post their experiences online so others could get honest feedback. The new boiler was delivered from New Hampshire on Friday. So it's really happening I've got pics of course. Didn't get to post earlier because I was out of town for Easter. They are calling it the v-gun(L). Basically a heavy duty unit with independent lambda controls and a new cycone design which is integral to the boiler. It isn't yet UL listed but should be by next winter. The actual install should be pretty easy. Just going to have to unhook a couple unions and slightly relocate the boiler supply and return. Going to to keep pretty much all the piping the same to get an accurate comparison.