~ convection Mr. Heater Big Buddy and #153; Indoor/Outdoor Propane Heater and #151 ~
patio. ~ Provides temporary heat for barns, sheds, cabins, campers, patios, garages, sporting events, hunting blinds and more. ~ Dual heating system combines radiant heat comfort with convection heat air flow for maximum heating efficiency. ~ 4000, 9000 and 18, 000 BTU with the capacity to heat up to 400 square feet for up to 108 hours. ~ Heating Application: Portable, Outdoor, BTU Output: 18, 000, Vent-Free: Yes, Heating Capability (sq. ~ ft.): 400, Blower Included: Yes, Heat Settings: 3, Fuel Type: Propane, Igniter: Matchless push-button starter, Thermostat Included: No, Remote Included: No, Oxygen Depletion Sensor: Yes, Dimensions L x W x H (in.): 17 x 10 x 17 1/2 4000, 9000 and 18, 000 BTU settings Up to 108 hours of use Tip-over cutoff switch CSA certified Uses two 1-lb. ~ or 20-lb. ~ propane cylinders (not included) with optional hose connections (Items 173645, 173646) Blower fan uses A/C adapter or 4 D-cell batteries to power convection; patio; garage; vent-free; propane heaters;