Vintage Coleman portable Focus 5 propane heater, 3,500 on low to 5,000 BTU's on high setting. Simply insert a small propane canister, 14.1oz or 16.4oz, screw in, turn heat selection knob to low and light w/ match. The radiant heater has adjustable warmth direction FOCUS feature by way of pulling aluminum reflection shield outward or push inward to set the heat's focus to a wide pattern or narrow pattern, plus the shiled tilts up or down to further focus the heat where you want it, up to 20feet away. Super lightweight. Used but clean & packed in original box...