All that wood burning info you may want to find is at.www.woodheat.org.
I just came inside, 25 degrees in Nov...and thought I wood look up woodfiredboilers. This was the site I spent some time at. Good info, seemed up to date, not to much bashing.
Decided to wait on a boiler and just stick with the wood stoves.
Plenty of info for those there too.
Be safe with wood...educate yourself...
stay warm and cozy.