GVFS20N Fuel: Natural gas Features: -Compact and designed to be a quick and easy install.-PHAZERAMIC burner technology featuring a randomly flickering flame and realistic glowing ember bed.-Realistic, ceramic fibre, light-weight molded PHAZER log set for a natural wood burning look.-Built-in adjustable flame and heat control.-No electricity required to light or operate millivolt system ensures reliable use even during power failures.-Saftey screen comes standard.-Equipped with an oxygen depletion sensor (ODS) and 100pct SAFE GUARD gas control system.-Porcelain reflective rear panel creates the illusion of 2 fires in 1.-Available in Natural Gas or Propane.-Space saving installations through reduced clearances.-Suitable for mobile homes.-No chimney or venting is required.-Approved for bathroom, bedroom, bed-sitting room and basement installations.-Certified for use in mobile homes. Includes: -Not allowed in CA per state law Unit Includes: Millivolt remote control gas valve with built-in adjustable flame heat control, exclusive PHAZERAMIC burner, ember bed and logs, porcelain reflective rear panel, piezo ignitor, on/off switch and safety "pilot on" indicator light, oxygen depletion sensor (ODS).. Color/Finish: -European cast iron design with exquisite detail and style in painted black finish. Specifications: -High efficiency and up to 23,000 BTU"s.-Flame heat adjustment to as little as 18,000 BTU"s. Dimensions: -Dimensions: 25.375" H x 19.25" W x 15.75" D. Warranty: -President"s Limited Lifetime Warranty.