Dark mode
United Kingdom

Stiebel Eltron DHB 21

Photos - Boiler Stiebel Eltron DHB 21
Outdated Product
£263.81 
Type: tankless; Energy source: mains; Power source: 400 V; Power consumption (W): 21000; Performance (Δt ~25 °C) (L/min): 10; Heating elements: 1; thermostat; overheat protection; Pipe connection: bottom; Dimensions (cm): 47x23x11;
add to listmy lists
Stiebel Eltron DHB 21
Main
Typetankless
Energy sourcemains
Installationvertical
Tank shaperectangular
Technical specs
Power source400 V
Power consumption21000 W
Performance (Δt ~25 °C)10 L/min
Water supplywith pressure
Heating elements1
Heating element typeheating coil
Features
Functionsthermostat
Safety systemsoverheat protection
General specs
Controlsmechanical
Controls layoutfront
Pipe connectionbottom
Dimensions (HxWxD)47x23x11 cm
Weight4.4 kg
Added to E-Catalogoctober 2008
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Stiebel Eltron 2025 - new arrivals, bestsellers, and the most relevant models Stiebel Eltron.
Video reviews
Additional features water heater Stiebel Eltron DHB 21:
  • 3-phase connection
Similar models:
  • Model DHB 11 Si — power 11.1 kW
  • Model DHB 18 Si — power 18 kW
  • Model DHB 24 Si — power 24 kW
  • Model DHB 27 Si — power 27 kW
From the press release:

DHB Si series water heater — with shower comfort switch. The switch allows you, in addition to the three power levels, to control the temperature directly on the machine.
Filters