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Old 03-23-2006
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What about trying a differnt fuel? Rig a temp/alternate tank and burn some different/cleaner/better composition fuel.

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www.blakes-lavac-taylors.co.uk/faqs.htm

Q: Black smoke emission, Inefficient burning and excessive carboning

A: Too much / too little fuel - In most cases the problem is caused by trying to run the heater too low. Either too much or too little fuel will result in black smoke and soothing up. Ideally there should be some blue colour in the flame. Controlling the drip rate accurately is crucial.

Flue not long enough - Poor draught will result and lead to heavy carboning, and soothing in the heater body and flue. The minimum flue length is around 89Omms (35 "). If it is not possible to increase the flue length inside the cabin, it can be added outside. If this is done, be sure to insulate the outside section (use heat resistant material) otherwise the temperature differential within the flue will tend to cause a down-draught.
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