Our Avenger brand gas heaters are proudly assembled in the USA using parts manufactured in the USA! These gas heaters make a great addition to your living space, are energy efficient and easy to use!This Product Is Proudly Assembled in the USA Using Parts Manufactured in the USA! • Designed, Engineered, Assembled and Tested in the USA. • Skilled American workers manufacture parts, assemble and test our products. • Only high-quality materials and parts are used in the manufacturing of our products. • Our factory features state of the art manufacturing equipment. • Product ships from our domestic warehouse in Kentucky, USA. High quality Avenger space heaters are Designed, Engineered and Assembled in the USA. The best space heater on the market, Avenger''s Dual Fuel Ventless Blue Flame Heater is built for durability and efficiency to keep your home toasty warm for many cold seasons to come. This compact, expertly built gas space heater gives you a reliable source of heat. It runs at 20,000 maximum BTU which heats up to 950 square feet of living space. No electricity is required which is perfect for keeping you warm during power outages. This space heater has patented dual fuel technology which allows it to operate on either natural gas or propane gas. Without compromising function for beauty, this versatile gas space heater has been redesigned for a slimmer and efficient profile to effortlessly fit into your home. Product Features • 20,000 Maximum BTU When Using Natural Gas • 20,000 Maximum BTU When Using Propane Gas • Economy Level: 10,000 BTU When Using Natural Gas (Heat Settings 1,2,3) • Economy Level: 16,000 BTU When Using Propane Gas (Heat Settings 1,2,3) • Heats Up To 950 Sq. Ft. • Patented DUAL FUEL TECHNOLOGY • 1 Unit operates off Natural Gas or Liquid Propane • Thermostat Control "“ The control automatically cycles the burner on and off to maintain a desired room temperature. • 5 Heat Settings with micro heat adjustments between each setting! • Newly redesigned cabinet for slimmer profile! • Economical: 99.9% efficient. No outside duct or chimney needed! • Heat for only pennies an hour! • Safety Assurance: O.D.S. (Oxygen Depletion Sensor) included with automatic shut-off • No electricity required to operate heater! • Push Button Piezo Ignition System • CSA Certified • Product Dimensions: 24.1" H x 18.46" W x 8" D • Product Weight: 18.4 lbs. • Ship Weight: 21.6 lbs. What''s In the Box • Ventless Heater - Qty. 1 • Wall Mounting Bracket - Qty. 1 • Hardware Pack - Qty. 1 Accessories Optional Base Feet Available Optional Blower Available To prevent performance problems, do not use propane fuel tank of less than 100 lbs. capacity. Please Note: This Item Is Not for Sale To Residents In California. Check your local regulations before purchasing and installation. Vent-Free heaters do not operate at elevations above 4,500 feet altitude.