Heating Capacity (BTU/hr or other relevant unit):Minimum 5000BTU Maximum 14500BTU Heating Area Coverage: (meters):20-80㎡ Product Dimensions fold (Height, Width, Depth) mm:420*138*680 Product Dimensions open: (Height, Width, Depth) mm:420*360*710 Product Weight: (in kilograms):7.71kg Fuel Type: (Natural gas, propane, etc.):propane Ignition Type: (Electronic, pilot light, etc.):piezoelectric ignition Safety Features: (Overheat protection, tip-over switch, etc.):tip over switch Heating Efficiency: (Percentage or rating):Class A Temperature Control: (Manual, thermostat, programmable):Manual Heating Modes: (Low, medium, high):Low, medium, high Noise Level: (Decibels or subjective rating):3——5 Ventilation Needs: (Vent-free, direct vent, etc.):direct vent Gas Connection: (Gas pipe size, connection type):0.5m hose clamp connection Clearance Requirements: (Distance from walls, furniture, etc.):1m Safety Certifications: (UL, CSA, CE, etc.):CE Compliance with Standards: (ANSI Z21.11.2, CSA 2.22, etc.):EN 449 Troubleshooting Guide: (Common issues and solutions):If the open flame cannot keep the fire, use a wrench to tighten the copper nut of the solenoid valve.