Model: MT 100 Tank capacity: 97 liters Orifice diameter: 2.2 mm Nominal input power: 6500 kcal per hour Type of gas consumed: Natural gas Hydrostatic pressure tank test: 21 bar Permissible gas pressure: 20 mm Maximum allowable water pressure: 4 times Gas group and gas type indication: G20 – 2H Water heater type: B11 with tank