Ice Fishing Heaters?

[jr8fish]

I am trying to decide what heater to get to use in my Eskimo Quickfish 3, fishing mostly at Strawberry? Just wondering what heater you use inside your ice fishing shelter? I have looked into the Mr Heater little buddy and big buddy and I have read that sometimes they can be hard to keep lit at higher elevations. I mostly ice fish at strawberry and at that elevation (7500 ft) it exceeds the recommendations. Have any of you used the little buddy with good success in a shelter at strawberry? I was also looking at the mr heater simple single burner design that screws onto a tank but this unit does not have the o2 safe sensor. The simple burner may be over kill in a small 3 man shelter too. What is your experience... Thanks.
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