Stiebel Eltron SH 15 SL, over-counter boiler 15 l with plug, 3.3 kW, pressure-resistant, infinitely variable

Delivered between 23.2.2026 and 7.3.2026
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Performance2

Product details

The SH 15 SL under-sink boiler from Stiebel Eltron is an efficient solution for hot water supply, ideally suited for installation above the countertop. With a volume of 15 liters and a rated power of 3.3 kW, this device provides quick and reliable hot water delivery for up to three draw-off points. The stepless temperature selection allows for individual adjustment of the water temperature, enhancing comfort during use. The boiler is pressure-resistant and can be combined with standard pressure fittings, making it particularly flexible in application. Installation is made simple and quick thanks to the well-thought-out mounting system, and the practical cable storage ensures tidy cable management. With its IP 24 protection rating, the SH 15 SL is also suitable for use in damp environments.

  • Pressure-resistant device for use with pressure fittings
  • Energy efficiency class A for environmentally friendly operation
  • Quick heating time of just 17 minutes
  • Easy wall mounting with mounting rail and template included
  • Practical cable storage for accommodating excess lengths of the connection cable.

Key specifications

Boiler type
Hot water tank
Volume
15 l
Item number
22614117

General information

Manufacturer
Stiebel Eltron
Category
Boilers
Manufacturer no.
229479
Release date
7.10.2022

Colour

Colour
White
Exact colour description
White

Material

Material group
Plastic
Material
Plastic

Boiler properties

Boiler type
Hot water tank
Version
Oversink device
mounting style
Table
threaded connector
1/2“
Design
Pressure resistant
heating system
Tubular heating element
Heating time
17 min
Temperature range
35 °C - 82 °C
Temperature display
Digital
Max. pressure
7 bar
Energy efficiency class
A
Model name
SH 15 SL

Power supply

Power supply
Electrical connection
Nominal power
3.30 kW
Nominal voltage
230 V

Safety

Protection type (IP code)
IP24

Origin

Country of origin
Germany

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
1x STIEBEL ELTRON small cylinder SH 15 SL 33 kWInstallation and operating instructionsMounting templateWall attachment

Product dimensions

Length
29.50 cm
Width
31.80 cm
Height
60.10 cm
Weight
11 kg
Volume
15 l

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Boilers» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 1.Stiebel Eltron
    1.1 %
  • 1.Tesy
    1.1 %
  • 3.Ariston
    2.3 %
  • 4.Bosch Home Comfort
    2.9 %
  • 5.AEG Haustechnik
    4.5 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Stiebel Eltron
    0 days
  • 2.AEG Haustechnik
    1 day
  • 3.Ariston
    5 days

Return rate

How often is a product of this brand in the «Boilers» category returned?

Source: Digitec Galaxus
  • 3.AEG Haustechnik
    4.4 %
  • 3.Tesy
    4.4 %
  • 5.Sygonix
    5.5 %
  • 6.Stiebel Eltron
    6.4 %
  • 7.Bosch Home Comfort
    12.3 %
Source: Digitec Galaxus