Stoney Ridge Vent Free Gas Logs Fireside Collection Stoney Ridge Vent Free Gas Logs Offers What Ordinary Gas Logs Cannot . . . The Beauty and Convenience of Gas Logs Combined with The Heating Characteristics of a Radiant Vent Free Heater! Includes 15 Gas Logs and Burner System Only. BTUs 27,000 39,000. Fuel Type Liquid Propane. Dimensions 24 L . Minimum Firebox Dimensions 29 Front Width x 22 Back Width x 14 1/2 D . Concrete Logs Are Combined with a Ceramic Fiber Radiant Heat Center Glow Log and Loose Glowing Ember Coals. Includes Slanted Burner System, Heavy Duty Wood Burning Grate, Realistic Ember Bed, and 17 Flex Line to Simplify Installation. Variable Remote Controlled Model Offers, Manual, Thermostatic and Modulating Smart Mode with 6 Flame Height Settings. Millivolt Model Operates Manually Or with Choice of Optional Hand Held Remote Controls. Warranty 4 Years Limited with Labor Allowance.