Yes, I would definitely recommend that you increase the size of the fill hole on the top of your stove. It sounds like to me that it can not get enough air for it to pressurize. Also in the stoves that I have made I have a "wall" on the inside of the stove that all the fuel drains behind and it is a much smaller area to pressurize than the entire stove itself..I think that you are really close to having a working model any way...Hope that helps...Happy Trekking...sabre11004...

The first step that you take will be one of those that get you there !!!!!! <img src="/forums/images/graemlins/wink.gif" alt="" />
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The first step that you take will be one of those that get you there 1!!!!!