American Gas Lamp Works Cosmopolitan 1600W 21" Weather Green Residential Wall Mount Aluminum Natural Gas Lamp With Triple Inverted Gas Mantle Light Assembly, Beveled Tempered Glass Panes and Bishop Finial natural-gas-to-propane TOUGH GUY Emitter tubes use Backer:Weather Concrete w38.1875 1000R - RM2 - NG - UPB - G9T - F10 - NB 000 BTU HR Fuel

American Gas Lamp Works Cosmopolitan 1600W 21" Weather Green Residential Wall Mount Aluminum Natural Gas Lamp With Triple Inverted Gas Mantle Light Assembly, Beveled Tempered Glass Panes and Bishop Finial natural gas to propane TOUGH GUY Emitter tubes use Backer:Weather Concrete w38.1875 1000R RM2 NG UPB G9T F10 NB 000 BTU HR Fuel TOUGH GUY Emitter tubes use heat treated aluminized steel tubes that that can withstand higher operating temperatures than other conventional tube materials and is very absorptive of the flame on the inside of the tube and very emissive on the outside Steel frame contains four concealed wooden blocks to prevent premature wear of floors