Comfort Glow 18,000 BTU Gas Heater for Indoor Use, Vent-Free, Natural Gas/LP

This heater is 99% fuel efficient. It requires no duct work or other venting and includes a built in oxygen depletion sensor! The sleek design and neutral color fits any decor. RADIANT INFRARED HEATING: The heater uses 3 high-quality ceramic plaques that radiate heat like the sun, providing comforting warmth.