Hi Dave and Matt,
Belated congrats on the new business venture. I really hopes it pays off. You guys are helping our country get back some of the manufacturing base that was sent offshore. Well that's for another topic for another day.
Some questions about your new boilers:
Capable to run year round? Is there a combustion fan?
There has been talk about the tube design being a bear to clean and moisture causing premature failure of the tubes during the summer due to the ash mixing with water and turning to acid... If running all summer, is this a concern? How often do you recommend cleaning the unit? Once, twice or more a year?
How hard are the tubes to clean? If I read the cutaway picture correctly, the tubes are surrounded by water as is the combustion chamber, so the ash travels up the tubes, right? If so, won't the ash have a hard time sticking to a vertical surface? Would sticking a small shop vac hose down them clean them out?
Will the 220 boiler be able to run the feeders independently? There by allowing the using of only one feeder when needed. This would allow for future home expansion without changing boilers. Something I would definitely be interested in.