Lava Heat Italia - AMAZON-154 - Opus Lite Patio Heater - Stainless Steel Finish - Propane Configuration Power Source: Standard Propane (LP) Power Rating: 51,000 BTU Consumption Rate: Up to 10 hours with Propane Tank (LP) Coverage Area: Approximately 36 sq. ft. Construction: Solid Steel & Aluminum Safety Features: Tilt Switch Auto-Shutoff