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How long does the propane bottle last with a PowerFlamer stove?

Inquiry:  how many cooking times does a 20lb propane tank last?

Outdoorstirfry:  This is a good question.  If you consider using the top heat power (i.e., 160kBTU/Hr from a PF13L160 stove) to cook every dish, a 20lbs propane tank can only last a few hours.   In reality, it is better to consider how much energy each dish needs to be cooked.   In this way it matches out about 3~4 months of usage for a tank.   Since I’m a personal user of my own stoves and I typically cook one dish a day (about 5~10 minutes), I find my tank last about 4~5 months, i.e., about 3 tanks a year.

A one lb propane bottle typically lasts about 1.5 hours.