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The Flame King is a portable outdoor catalytic heater that runs on a 1 lb propane cylinder. It puts out up to 3,000 BTUs and runs up to 7 hours on one cylinder, with flameless catalytic heat that burns propane slowly. Foldable legs and an adjustable stand let you aim warmth where you need it, and it weighs 4.45 lb at 13 x 9 x 9 in. It suits campers, hunters, anglers and patio sitters who want quick spot heat without firewood or ash. Against flame-style portable heaters it trades raw output for efficiency and longer runtime per cylinder; owners rate it well, though it is a spot heater, not a room heater.
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Owners rate it 4.6 out of 5 across 20 ratings. They like the quick flameless heat, the long runtime per cylinder and the easy setup; the main caveats are that it is a spot heater and needs propane bought separately.
This is a portable catalytic propane heater that gives off flameless warmth. It produces up to 3,000 BTU of heat and runs for up to 7 hours on a single 1 lb propane cylinder. The cylinder is sold separately.
Catalytic heating is 99.98% efficient and uses propane at a slower rate than traditional flame heaters. The heater has foldable legs and an adjustable stand, so you can set it up and aim the heat where you need it.
It starts with an electronic (piezo) ignition. An automatic shut-off valve cuts off the fuel supply if the flame goes out. The heater is CSA certified.














