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[Mr. Maple]

 At what temperature does creosote form? On our new high-efficiency maple syrup evaporator I went with is a unit that has a higher stack temperature than others, I know I am losing heat but I am getting a much higher rate of boil since my temps under the pan are much higher. Can the same be said for outdoor wood furnaces?  If you are gaining all of the btu's from the wood, having a lower stack temperature, would you also be more liable to have more creosote build-up in your stack and possibly back into your boiler?
Thanks

[slimjim]

This depends on the stove, a conventional boiler with low stack temps will get gummed up but a well run gasser burns the gasses before they condense to make creosote

[dukethebeagle]

if my stoves stack temp is not high enough it will gum up in days ,especially with damper wood.
with dry not so bad though,yet it still gums up