With this Duraflame Propane Heater, you get room-filling heat with up to 160,000 BTU. A built-in thermostat and variable heat offer customized comfort. The direct spark igniter provides no-hassle convenience. Uses 5.6 to 7.4 lbs. per hour. 450 CFM blower. Requires 100-lb. cylinder for operation not included. Uses standard regulator and hose. CSA certified. Thermostat Included Built-in, Heat Settings Variable, Blower CFM 450, Clearance from Side Wall in. 24, Fuel Consumption gal./hr. 5.6 to 7.4 lbs. per hour, BTU Output 120,000-160,000, Category Type Forced air, Regulator Included Yes, Blower Power Supply Volts, Amps 120, Remote Included No, Gas Inlet in. Standard regulator and hose, Needs Direct Venting No, Clearance from Rear Wall in. 24, Dimensions L x W x H in. 26 x 10 x 18, Igniter Direct spark, Clearance from Corner in. 24, Blower Included Yes.