Stiebel Eltron DEM Set Mini Instantaneous Water Heater

Stiebel Eltron DEM Set Mini Instantaneous Water Heater

The Stiebel Eltron DEM Set Mini Instantaneous Water Heater from Stiebel Eltron is a compact yet powerful electronic water heater engineered to supply reliable hot water directly at the point of use. Designed specifically for hand washbasins and small washrooms, this mini instantaneous range delivers hot water only when required, reducing wasted energy and water from long pipe runs. Thanks to electronic closed‑loop control and a rapid bare‑wire heating system, it provides accurate temperature performance and efficient operation.

Available in three output options — 3 kW, 4.4 kW and 5.7 kW — the DEM Set Mini range offers flexibility to suit different washroom demands, making it appropriate for domestic, office and light commercial environments where traditional stored systems are impractical.

Key Features

• Three model options: DEM 3 Set, DEM 4 Set and DEM 6 Set with incremental power outputs to match usage demands

• Electronic closed‑loop control for precise and efficient temperature delivery

• Rapid bare‑wire heating system for instant hot water at low flow rates

• Internal permanent set temperature for childproofing and anti‑scald protection

• Special aerator and integrated flow controller for consistent flow and smooth performance with existing taps

• Suitable for oversink and undersink installation with a single appliance

• Works with both pressurised and non‑pressurised taps

• Quick and straightforward installation with PROFI‑RAPID system

Heating Performance and Technical Information

The DEM Set Mini Instantaneous Water Heater heats water only as it flows through the unit, eliminating standing losses and providing hot water instantly at the washbasin. Its electronic closed‑loop control constantly monitors outlet temperature and adjusts heating output to maintain the set level right up to the maximum output of each model.

The DEM 3 Set variant is ideal for spaces with light usage where moderate amounts of warm water are required. The DEM 4 Set increases capacity for slightly higher draw rates and offers suitability for showers at inlet temperatures above 20 °C. The DEM 6 Set delivers the highest output in the range for more demanding small washroom scenarios.

All models use a maintenance‑free bare‑wire heating element suitable for both hard and soft water conditions, and include integrated safety systems with high‑pressure switches and electronic temperature monitoring for dependable operation.

Additional Technical Details

• Rated voltage: 230 V single phase

• Outputs: approx. 3 kW, 4.4 kW and 5.7 kW depending on model

• Rated current and fuse protection matched per output variant

• Installation options: oversink or undersink wall mount

• Temperature setting range: approx. 30–50 °C with internal limiting

• IP rating: IP25 suitable for wet areas

• Colour: White

What’s in the Box

• Stiebel Eltron DEM Set Mini Instantaneous Water Heater (chosen output model)

• Wall mounting bracket and installation hardware

• User and installation instructions

Summary

The Stiebel Eltron DEM Set Mini Instantaneous Water Heater range is a space‑saving, efficient solution for on‑demand hot water at hand washbasins and small washrooms. With choice of 3 kW, 4.4 kW and 5.7 kW models, precise electronic control, built‑in safety features and simple installation, it delivers dependable performance where traditional storage water heaters are impractical or unnecessary.