The 864TM TRV GS combines convective heat, radiant heat and reduced depth dimension, making this unit ideal for small to mid-sized homes or for zone heating in bedrooms, living rooms and outdoor living spaces. The fireplace features 864 square inches of high quality, high clarity, tempered glass with a removable safety screen. The 864 TRV GS come standard with the very popular accent light for an added glow when the fireplace is on or off, which really showcases the fireplace in every setting. The 864 TRV GS gas fireplace allows you the option of adding the revolutionary “GreenSmart” modulating remote control. This “ultimate” hands free control gives you the ability to control virtually every function of the fireplace from the comfort of your couch. The 864 ST GS also allows to the ability to add the Power Heat Duct Kit to move heat to an adjoining room - up to 25 feet away.