Gas heater ARDESTO HB03 10l/min 20kW Low NOx display battery ignition black
- Type: Chimney-vented
- Open combustion chamber
- Flow rate: 10 L/min
- Heat exchanger: oxygen-free copper, 2.0 kg
- Valve: brass (medium)
- Operating pressure 0.025–0.8 MPa
- Automatic pulse ignition
- 12-row T-shaped burner
- Rated input thermal power 20 kW
- Rated useful input power 17.5 kW
- Minimum useful input power 7.5 kW
- Voltage: 3 V DC (two D-size batteries)
- Daily fuel consumption 9.057 kWh
- Harmful emissions 38.3 mg/kWh
- Water and gas inlet/outlet diameter: 1/2″
- Dimensions: 590 × 340 × 180 mm
- Weight 9.6 kg
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A typeflowing
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Heating methodnatural gas
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Settingwall mounted
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Caserectangular
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Performance10
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Energy Efficiency ClassA
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Burner12-рядний Т-подібний з низьким рівнем викидів NOX
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Nominal thermal input power20 kW
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Rated useful input power17.5 kW
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Minimum useful input power7.5 kW
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Display✔️
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Ignition Typeавтоматичне імпульсне
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Type combustion chamberopen (chimney)
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Thread of inlet nozzle1/2"
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Thread of outlet nozzle1/2"
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Fuel consumption9.057 kW·h/24h
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Emission of harmful substances38.3 mg/kW·h
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Efficiency86.2 %
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Additionaloverheat protection / захист від перевищеного тиску / захист від сухого горіння
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Heat exchanger materialcopper
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Power SupplyDC3V (дві батареї розміру D)
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Colourblack
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Dimensions (HxWxD )59 x 34 x 18
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The weight9.6 kg
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Operating pressure, MPa0.025-0.8
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Weight9.92 kg
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Length410 mm
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Height230 mm
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Width680 mm
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Volume0.0641 m³
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Warranty12 months
Reliability in Every Detail
The ARDESTO HB03 gas water heater is designed for those who value comfort and reliability in daily use. This flue-type unit with an open combustion chamber delivers a stable output of 10 L/min. The black front panel features a modern design. The 2 kg oxygen-free copper heat exchanger guarantees efficiency and durability. The brass valve withstands operating pressures ranging from 0.025 to 0.8 MPa, ensuring reliable operation even under variable conditions.
Technologies for Comfort
Automatic pulse ignition makes operation simple and convenient, while the 12-row T-shaped burner with low NOx emissions enhances environmental friendliness. The unit’s capacity—20 kW nominal thermal, 17.5 kW useful, and a minimum of 7.5 kW—ensures operational flexibility. The water heater runs on two D-cell batteries (DC3V), has a high efficiency of 86.2% and a daily fuel consumption of 9.057 kWh, making it economical and efficient.
Safety & Peace of Mind
The unit is equipped with multi-level protection against water overheating (up to 75 °C), excessive pressure, and dry firing. Harmful emissions amount to only 38.3 mg/kWh, which complies with current standards. The diameter of the water and gas inlets and outlets is 1/2″, and the weight is 9.6 kg. Thanks to its compact size (590 × 340 × 180 mm), the water heater is easy to transport and install.


















