The Brunton Vapor AF is a genuine multi-fuel vortex-burner stove, handling canister gas, white spirit, and kerosene. Brunton's claim to fame for this stove is that it can handle all three fuels without any changes of jet or preheat system, unlike with many older stoves. This stove was tested in Part 6 of this series with both white gas and kerosene, and it was found to have very low CO emission with both of these fuels - down in the 10 - 15 ppm range. The heating rate with such 'liquid fuels' was found to be in the range of 3 - 11 C/L/min, which is not high but is probably adequate. Brunton claims a heat output of about 10,000 BTU/hr, but I have some reservations about this claim.


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