Can you guys give me the good, bad and ugly about this unit? I think I've wore the search button out on here and on google researching boilers. For the money this looks like a well made boiler that should serve me adequately. I have a 2400 sq. ft. ranch house (1200 each floor) and want to replace my harman tl300 with a boiler to get even heat throughout the house. My biggest concern, that hopefully those with experience with the EKO 40 can comment on, will it burn through the night on a load of wood? Or during the day while at work? I found 1 that was used only a builders show for demo purposes that comes with a Taco 007 circ. pump and a small expansion tank for $5000. Is that a good price? Would the 40 be overkill and the 25 would suffice in my situation?