Empire HearthRite 20" Thermostat 18,000 BTU Vent-Free Infrared Heater

Empire builds a full line of heaters for nearly every application – from vent-free models (in blue flame and infrared) to wall furnaces and console heaters in direct-vent and B-vent. At more than 90-percent efficient our UltraSaver models provide more heat for your energy dollar than any other vented system you can buy. All of our Empire-branded heaters are made in the USA. Vent-Free systems draw room air to support combustion in a clean burning blue-flame or radiant-plaque system. Rated at 99.9 percent efficient, vent-free heaters release nearly all of the available heat energy into the room. To ensure safe operation, all vent-free systems include an Oxygen Depletion Sensor (ODS) to automatically turn off the heater if room oxygen level drops to an unsafe level. Vent-free systems are designed to provide supplemental heat and may not be used as a primary heat source. Features:  BTU's:  18,000 Control Type: Thermostat Dimensions: 19.84" (W) x 7.44" (D) x 23" (H) 99.9% Efficiency – Tu