CSA certified for indoor use only, the indoor model offers 20,000 Btus of comfort with dedicated LP and Natural Gas models. The indoor Chimenea offers an oxygen depletion sensor and millivolt controls, and is remote capable. Five control accessories are available. The indoor Chimenea also features a grape-leaf design casting protected by heat resistant, antiqued paint finishes; Antique Green Only   Temperature Control: On/Off Millivolt (remote capable) BTU Input: 14,000 to 20,000 BTUs Dimensions: 23" wide X 49" highShipping Weight: 228 lbs Minimum Clearances to Combustibles: 24" from top or 96" from floor, 2" sides and rear Natural Gas  3/8" Gas Inlet Standing Pilot/Piezo Ignition System CSA certified for INDOOR use only, and is not for use with wood