The Leisure Line design doesn't have a big gap where a fire could back up into the hopper. The Alaska 'paddle' leaves a much larger gap. [EDIT] : I'm wrong, there is a big gap, but the fire doesn't get close to the hopper or the opening, see later post.
BUT I still can't see the fire backing up into a hopper if there is a draft in the stove. If the cover was completely removed, and you had a draft, it still would pull air into the stove not out the hopper.
I have run my Leisure Line Pioneer stove out of coal and very low on coal so I could see the pusher block or shovel that moves the coal out of the hopper onto the grate. And I've never see any indication of fire backng up into the hopper. I do have condensation in my hopper, and this is from the lack of draft.
AND, I have virtually ZERO draft, I'm venting up about ten feet then a 90* out the side of my barn, the pipe ends 3' horizontally from the barn, not any added vertical section. I put a manometer on the pipe and I have between 0.00 and 0.005 WC. Nowhere near the recommended 0.05" WC. If the wind blows out of the east, I'm sure I have slight pressure in the stove.
I would not be concerned with a Leisure Line stoker, I can't see it having a hopper fire.
Last edited by LsFarm
on Tue Mar 20, 2007 10:31 am, edited 1 time in total.