- High-power heating: Rated power of 22000 W, 24000 W, or 40000 W, with maximum temperatures of 55-65 °C for instant hot water.
- Versatile capacity: Flow of 12-20 L/min (at ΔT=25 °C), supports 2-4 outlets, ideal for medium to large households.
- Precise digital control: Digital panel with thermostat for easy, accurate temperature adjustments.
- Optimized gas efficiency: LPG/NG consumption of 2.5-3.2 m³/h with ≥84% efficiency, using an oxygen-free copper heat exchanger.
- Safety and flexibility: Pulse or dual ignition, forced exhaust, working pressure of 0.02-1 MPa for safe performance.
- Compact design: Dimensions from 522x337x143 mm up to 570x395x185 mm and net weight of 9.5-20 kg, making installation easy in a variety of spaces.
General Product Information
The Stanley STXGWHG20V gas water heater holds 20 liters and is perfect for households with 2 to 3 simultaneous outlets. With a powerful capacity of 40,000 W, it delivers a flow of 5.28 gallons per minute and a maximum temperature of 65 °C, adjustable via digital control for maximum precision. Equipped with an oxygen-free copper heat exchanger, pulse ignition, and forced exhaust, it guarantees efficiency of over 84%. Compatible with LPG/NG gas (consumption of 4 m³/h on NG), it operates at a water pressure of 0.02 to 1.0 MPa. Its dimensions of 570x395x185 mm and net weight of 18.2 kg offer a rugged, efficient design for high performance.
More Features
| SPECIFICATIONS | |
|---|---|
| Model No. | STXGWHG20V |
| ITEM SPECIFICATIONS | Gas Tankless Water Heater |
|---|---|
| RATED POWER (Watts) | 40000 |
| WATER CAPACITY (L) | 20 |
| TEMPERATURE CONTROL TYPE | Digital |
| MAXIMUM TEMPERATURE (°C) | 65 |
| NUMBER OF OUTLETS | 2 to 3 (reference) |
| WORKING PRESSURE (MPa) | 0.02–1.0 |
| SUITABLE WATER PRESSURE (MPa) | 0.02–1.0 |
| CAPACITY (L / MIN) (ΔT = 25 °C) | 20 |
| THERMOSTAT | Yes |
| GAS TYPE (GAS ONLY) | LPG / NG |
| CONSUMPTION (GAS ONLY) m³/h | NG – 4 m³/h |
| EFFICIENCY (GAS ONLY) | ≥84 % |
| COPPER HEAT EXCHANGER | Oxygen-free copper |
| IGNITION MODE (GAS ONLY) | Pulse Ignition |
| EXHAUST TYPE (GAS ONLY) | Forced |
| GALLONS PER MINUTE (G/Min) | 5.28 |
| PRODUCT DIMENSIONS (mm) (L × W × H) | 570 × 395 × 185 |
| PACKAGE DIMENSIONS (mm) (L × W × H) | 695 × 463 × 260 |
| NET WEIGHT / GROSS WEIGHT (kg) | 18.2 / 19.8 |
Support
- 2-year limited warranty
We stand behind the quality of our products, so we will repair, free of charge, any defect in materials or workmanship within the period stipulated by the warranty.
We take a range of thorough measures and guarantee that all our products are manufactured to the highest standards and comply with all regulations.






