Vitowell comfort Classic

Storage Water Heater

Vitowell comfort Classic is a reliable and secure electric storage water heater. An electronic earth-leakage circuit breaker (ELCB) and water-resistant casing material assure maximum safety.

Stepless temperature adjustment
Ceratech Technology tank coating
Electronic ELCB
Slim and cube design

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Stepless temperature adjustment

For high comfort

Ceratech Technology tank coating

For efficient heating

Electronic ELCB and splash-waterproof IP X4 casing

For maximum safety

Double-safety thermostats

For protection against overheating

Durable structure

Made of high-quality ABS material

Fast heating time

And high-density PU Insulation for energy efficiency

Large magnesium anode

For protection against water tank corrosion

Available in two design options

Slim or cube design

Vitowell  comfort Classic: robust and safe

The  Vitowell comfort Classic line equips you with a reliable and secure water heater. Viessmann adopts the exclusive Ceratech Technology enamel coating formula to extend the durability of water tanks. Acid corrosion and alkaline resistance, temperature and pressure resistance meet the latest German quality standards to assure long-lasting durability of the heater at its core. An electronic earth-leakage circuit breaker (ELCB) and high-quality, water-resistant casing material provide maximum safety.

Engineered for safety

The innovative Viessmann earth-leakage circuit breaker (ELCB) safety switch protects you against electrical hazards. The mechanical circuit breaker immediately reacts to any possible electrical leakage. For an increased level of safety, the double-safety thermostats assure that the device is not overheating.

Two design options

Vitowell  comfort Classic heaters are available in two designs: cube and slim. The slim heater sticks out by its simplistic, modern design. Thanks to its shape, it can also be concealed in a false ceiling. The traditional, compact design makes the cube heater particularly suitable for small bathrooms.


Check the dimensions of  Vitowell comfort Classic water heaters in the following overview to assure that the device fits well into your home.

Vitowell comfort Classic slim
Dimensions / Capacity20 l
A (mm)630
B (mm)279
C (mm)279
D (mm)100
Vitowell comfort Classic cube
Dimensions / Capacity10 l15 l30 l
A (mm)390390471
B (mm)360360439
C (mm)302342395
D (mm)100100100

Product details


Vitowell  comfort Classic slim
20 l: 350W/220V

Vitowell  comfort Classic cube
10 l:  200W/220V
15 l: 350W/220V
30 l: 500W/220V


Vitowell  comfort Classic slim
20 l: 9.0 kg

Vitowell  comfort Classic cube
10 l:  6.8 kg
15 l: 7.6 kg
30 l: 12.0 kg