Does anybody own a coal man or homesteader outdoor boiler??? The automatic stoker feature looks cool. But 7 gage steel does not sound strong to me. My john deere mower deck is made of 7 gage steel. With a water jacket and high internal firebox temp. somthing makes me question the long term life of the unit. the warranty is 21 yrs. but that does not mean anything. They can go out of business tomarrow.