We bought the Soto Micro Regulator as it had great reviews and supposedly worked better at higher altitiudes/colder temps. At 2.6 oz we are quite pleased.

This thing gets 30 oz of 35-40* water boiling in just a few minutes without a lid on it. It claims 11,000 BTU output. It certainly was quicker than a Jetboil with less water.
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Bob


"Were I to leave where else would I go? Your words of life and of truth You hold." - Third Day