Both have very similar statistics, the only difference I can see in funcion is that the Clayton has a bottom ash discharge grate that you rock back and forth by wiggling a lever to drop the ashes. The Fire Chief has a auger-type system that has teeth to pull the ashes down. The Clayton is $1899, Fire cheif is $2300. Any other info on these units would be great. I've thought it through quite a bit, talked to HVAC guys, pellet and wood burner dealers, and I think a wood furnace is my best option against pellet or an outside boiler. I have a existing forced-air propane furnace I can tie into and a walk out basement so my access for wood is good. I run a landscape business, so wood is not really a problem to come by. Home is 1800 sf. upstairs, 1800 sf. finished downstairs. Thanks for the continued help and support.