STIEBEL ELTRON STE DHE 18/21/24 Fully Electronic Instantaneous Water Heater 18/21/24 kW

The STIEBEL ELTRON STE DHE 18/21/24 is a high-performance fully electronic instantaneous water heater designed for multiple tap points. With selectable power output of 18 kW, 21 kW, or 24 kW, it provides on-demand hot water efficiently and precisely. Ideal for residential and commercial applications, this wall-mounted unit features an LCD display, ECO mode, and memory functions for personalized comfort.

Advantages

Energy efficiency class A ensures low operating costs. The bare wire heating system delivers rapid heat-up, while the IP25 protection rating allows safe installation in splash zones. Standby power consumption below 1 W contributes to energy savings.

Suitable for

• Households with high hot water demand
• Multiple bathrooms or kitchen outlets
• Renovation projects requiring compact, powerful water heating

Key specifications

• Power output: 18 / 21 / 24 kW (selectable)
• Voltage: 400 V (3-phase)
• Rated current: 26 / 30 / 35 A
• Energy efficiency class: A
• Temperature range: 20 - 60 °C
• Max flow rate at 38°C (24 kW): 13.2 l/min
• Minimum activation flow: 2.5 l/min
• Water connection: G 1/2"
• IP protection: IP25
• Dimensions: see technical data

Recommendations

For optimal performance, ensure proper electrical installation by a qualified professional. The unit is pressure-resistant and suitable for mains pressure systems.