I am nearing the end of another heating season with my add on forced air furnace and am being reminded of why I so dislike it, and am wanting to seriously research an alternative wood burner, my carbon monoxide detector has just went off for the 2nd time this year, I cleaned the chimney before firing up for the year, I am thinking it needs it again and I will have to do it tomorrow though I hate climbing up on the snowy icy roof. I have a masonry chimney on the outside of the house and it is in bad shape, cracks etc. I don't really want to replace it. I am sick of the mess in the basement and the smoke stink in the house and the risk of fire/carbon monoxide from this stove. For that reason I was leaning towards an OWB. OWB's are the popular alternative around here, but since reading on this forum I see many prefer the gasser models. I know nothing about gassers or heat storage other than they need dry wood to burn properly and they cost a lot more. There is also the indoor gasser option which I could install in the garage I plan to build this year (I already know insurance companies don't like that). My first question would be regarding the outdoor boilers, I know they aren't overly efficient but I do know people who go through relatively little wood in theirs with good dry wood, I don't care about smoke as I live in the country. However the problem I have with investing money in these stoves is I have seen so many of them fail in the last 10 years from rusting through the water jacket. Some say the rusting out is from the water being too hard in this area, if it were soft water this wouldn't happen, others say it is from the creosote and ash causing it to rust from the firebox into the waterjacket, either way isn't good. Is there any way to prevent this failure? I don't want to spend thousands on a piece of scrap steel. Also if this can happen so easily with the standard OWB's can't it happen to the indoor and outdoor gassers as well?