From the Mr. Heater web site:
"NOT DESIGNED FOR PERMANENT INSTALLATION OR USE ABOVE AN ALTITUDE OF 7000 FEET."
Here in Colorado, there's only one place I camp that is below 7000' and that's at 6850'. Even that's downhill from the house. I'm guessing this might have something to do with the low oxygen sensor (?).
BTW, anywhere you could camp in December in Yosemite is only about 4000'.
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Rotor_Wash
HEMS (Helicopter Emergency Medical Service) Pilot (ret)
Northern VA
2002 3124KS
2007 Tahoe
Solar
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