kellymoe
Expedition Leader
I bought a catalytic heater a few years back for camping in the White Mountains in California in the Fall. It worked great at home and we looked forward to heating the tent up before bed as temps drop in to the 20, that time of year. Well, we got up there and tried to fire it up and it wouldn't light. Never got it started. When I got home it lit right up no problem. The issue was altitude, we were at just over 10, 500 feet. Not enough O2. Be warned, I don't know what altitude problems with ignition occur but it is probably around 9k. I ended up retuning it because most of our family camping is done above 10k feet.