616 Gas Insert showcases a fire that is 2nd to none, big heat output with a glass area of 616 sq inches. A traditional hearth look is achieved by having our ceramic glass go almost all the way to the bottom of the unit, and hearth. 39,000 – 14,835 BTU on NG, and 39,000 – 11,872 on LP, touting up to a 70% turndown ratio. This gas insert converts an existing masonry or metal fireplace into an efficient heater while preserving the charm of a traditional fireplace. The 616 comes full loaded, with fans, accent lights, 3 stage burner and Greensmart Remote, all standard. The Greensmart Comfort Control allows the middle and front burner to operate independently of the rear burner for maximum flame turndown. The standard accent lights not only illuminate the back of the firebox from behind the back log, but also from the top of the firebox as well, showcasing the media and fireback of choice. · Flexibility of 3 different medias (Traditional Logs, Fyre-stones, or Driftwood Fire Art) will appeal to a wide variety of customers and lifestyles. Firebacks are required on the 616, a choice of 6 different fireback looks gives the ability to personalize the interior of the insert to suit any customers desire.