Technical specifications: Operation: rotary knob. Colour: silver. Power: 16 kW. (25℃) Hot water volume: 8L/min (8kg/min) Flow Rate: 2.11 GPM Gas type: LPG. Gas pressure: 2800Pa. Fire fighting: automatic fire fighting with electrical pulses. Output options: automatic exhaust gas discharge. Exhaust outlet diameter: 8 kg F110 Applicable water pressure: from 0.02 to 0.8 MPa pressure. Gas line (inner diameter): F 95 mm, oil-resistant rubber hose. Cold water pipe: short pipe or G 1/2 steel pipe. Hot water pipe: long pipe or G 1/2 steel pipe. Dimensions: 500 x 300 x 130 mm (H x L x W). Package size: 610 x 360 x 190 mm (H x L x W). Adjustable water quantity (continuously). Adjustable temperature (stepless). Services: Advantage 1: easy installation. (in a ventilated environment). Advantage 2: automatic ignition by two D batteries (not included). Advantage 3: Portable, lightweight with handle and stand. No power connection required Advantage 4: instantaneous water heater Advantage 5: Heat-resistant metal housing Advantage 6: Start at low water pressure Advantage 7: Overheating protection No water reservoir required. Advantage 8: Come with rain shower head and shower hose. Advantage 9: 20-minute timer (must be properly equipped) Package includes: 1 x water heater. 1 x rain shower head and shower hose (coating). 1 x English user manual. Attention: the relief valve is not included in the box contents