Explore the Heat Hog Collection: Discover the full collection of portable propane space heaters that include 18,000 BTU, 9,000 BTU, or 4,000 BTU heaters built for indoor or outdoor occasions. 4,000 BTU's: This heater heats up to 100 square feet with up to 4,000 BTUs of radiant heat output, running on a 1 lb.
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