STIEBEL ELTRON STE DHB-E 18/21/24 LCD Electronic Instantaneous Water Heater 18/21/24kW 400V

The STIEBEL ELTRON STE DHB-E 18/21/24 LCD is a high-performance electronically controlled instantaneous water heater designed for multiple draw-off points. With selectable power outputs of 18 kW, 21 kW, or 24 kW and a 400 V three-phase connection, it provides efficient hot water on demand for showers, baths, and kitchen use. The clear LCD display and electronic controls allow precise temperature adjustment from 20 to 60 °C.

Advantages

Energy efficiency class A ensures low operating costs. The bare wire heating system delivers consistent performance, while the IP25 splash-proof rating guarantees safe installation in wet areas. Compact dimensions (470 x 225 x 110 mm) make it ideal for wall-mounted surface installation.

Suitable for

• Households with multiple bathrooms or high hot water demand
• New builds or renovations requiring a compact, efficient water heater
• Three-phase electrical systems (400 V)

Key specifications

• Power: 18/21/24 kW (selectable)
• Voltage: 400 V (3-phase)
• Current: 26 A (18 kW) / 30 A (21 kW) / 35 A (24 kW)
• Energy efficiency class: A
• Temperature range: 20 - 60 °C
• Display: LCD
• Control: Electronic
• Protection class: IP25
• Water connection: G 1/2"
• Min. flow rate: 2.5 l/min
• Max. flow rate (at 24 kW, 38 °C): 13.0 l/min
• Dimensions (H x W x D): 470 x 225 x 110 mm
• Weight: 3.2 kg
• Colour: White

Recommendations

For optimal performance, ensure the electrical supply matches the selected power setting. Professional installation by a qualified electrician is recommended.