The World Marketing of America Comfort Glow GFD3840T is a vent-free gas fireplace designed for supplemental indoor heating. This unit delivers 26,000 BTUs, capable of efficiently heating areas up to 900 square feet. It features a dual-fuel design, allowing operation with either natural gas or liquid propane (LP), and includes a pewter oak finished mantel for aesthetic integration into living spaces. The fireplace is equipped with a dual-tier burner system, an adjustable thermostat for precise temperature control, a one-button electric igniter, and a remote control for convenient operation. For safety, it incorporates an Oxygen Depletion Sensor (ODS) and boasts 99.9% fuel efficiency. With dimensions of 38 inches high, 38.75 inches wide, and 16 inches deep, the unit is ready to assemble and does not require electricity for its primary heating function. An optional blower is available separately to enhance heat circulation. Due to the built-in oxygen safety sensor, this product may not function properly at elevations above 4,500 feet and is not for sale in California or Canada.