It had good reviews so I probably just got a lemon, which points to poor quality control at Martin. First night camping, temp dropped to 5 degrees C, and the damn heater was defective. Just when we needed it the most, it let us down. Next day I looked it over and found the stem that protrudes into the propane cylinder was missing. I guess I should have bought a Coleman heater. I contacted 鶹 and they refunded my money.