SO the system is in and working great! Never saw so much heat energy from so little input. The solar puts out 165 degree glycol on sunny days- seriously hot stuff. Best thing about the froling is that its so easy to light and then you just walk away. No adjustments, no tweaking, no checking things, no stirring of the fire, no taking panels off and guessing what the air settings should be, and no adding wood during the burn because the boiler display tells you how much wood to put in when you start it. No hoping that you have things set right because the computer takes all the guess work out of the equation. Everything about the froling s3 turbo has been engineered to extract the most energy from wood and keep the operator OUT of the boiler room. Combustion settings for primary and secondary air are constantly monitored and adjusted from start to finish- they are constantly changing throughout the burn. Fact is- there is no way to get maximum efficiency from a wood gasification boiler which does not change the air settings and fan speed during the burn. Period. You can change them yourself but who wants to live in the basement? The boiler always knows how much energy is needed, depending on load and storage capacity and how to burn the wood for optimal efficiency. Its like having a full time employee in the basement doing all the work for you. Oh and by the way, this thing is so quiet that I can’t hear it if I’m not in the basement. Also I have opened the firebox during the burn and there is NO SMOKE let into the house! NONE! I don’t have a reason to do that other than to just see if I could open it without smoke pouring out. I have seen all the videos on youtube of the wood gas boilers and they are BLACK above the fire door. If anyone knows of a better boiler, I’ll buy it.