Dear Rajan
It is not possible for the O2 level to be significantly different, but there is a chance that the humidity of the air is different. Assuming you have fuel with the same moisture content in both places, the absolute humidity (mass of water per cubic metre) can make a small difference. I have noted this when testing 'racing stoves' a few years ago. When it is really humid the performance deteriorated very noticeably. Perhaps I should first ask, what is the performance difference you have noted? Are you taking a fuel sample and using it at both locations? It is more likely to be the fuel. Regards Crispin From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Monday, January 30, 2012 10:10 AM To: [email protected] Subject: [Stoves] oxygen percentage in air ( same altitude ) and wood stove performance Dear All, What would be the difference we can expect in the percentage of oxygen in the urban and rural air ( altitude remaining the same ) ? I am asking this question since I found the same wood stove with the same fuelwood performed better in a rural area compared to an urban area ( altitude being sea level at both places ). I am not able to find any reason except a possible difference in the oxygen percentage in the air at the two places. Has anybody else also experienced something similar ? Or is it just my illusion ? Hope to get some clarification from somebody. Regards, Rajan
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