Mr. Heater 20,000 BTU Vent Free Radiant Dual Fuel Heater Size:20000 BTU Cast magnesium construction allows for

Cast magnesium construction allows for more knuckle clearance

knurled handle for better grip

Adjustable tension

Available in both 5/8 and 3/4in diameters at 50

Inside diam 5

Mr. Heater 20,000 BTU Vent Free Radiant Dual Fuel Heater Size:20000 BTU Cast magnesium construction allows forThe Mr. Heater Vent Free Dual Fuel system is designed with absolute safety in mind. Mr. Heater's patented vent free dual fuel system is composed of dual valves, dual oxygen depletion sensors, and a manual selector switch to ensure correct installation. Mr. Heater certified dual fuel vent free heaters are your perfect supplemental heating solution. This radiant 20,000 BTU heater comes with integrated electronic ignition and on board thermostat for