Electric instantaneous water heater

Vitotherm instantaneous electric water heaters provide household water with a high level of user convenience and reliability.

Simple installation and virtually maintenance-free
With switchable output
Energy efficiency class: A
With switchable output

For Vitotherm EI Premium and Classic

Simple replacement

For all common instantaneous water heaters

Easy fixing system

With integral compensation for unevenness in the wall

Insertion aid

For the connecting cable

Comprehensive safety concepts

CE certified

Energy efficiency class

Energy efficiency class: A

Vitotherm series – compact, fast and efficient hot water heater

Vitotherm instantaneous electric water heaters take household water heating to a whole new level in terms of durability, safety and heating precision. The key advantage of instantaneous water heaters over storage water heaters is that they provide unlimited hot water without preheating time. This ensure the highest comfort level of shower or bath. Because there is no storage tank, the instantaneous water heater is extremely compact which is perfect for Hong Kong living spaces. In addition, the water is only heated when there is a demand which reduces standby heat loss and electricity costs without sacrificing comfort.  

Further advantages of instantaneous electric water heaters are, on the one hand, the almost maintenance-free operation and, on the other hand, the relatively low investment costs. Last but not least, the variety of types speaks in favour of heating the hot water electronically: They are available in single phase or 3 phase heaters in different output levels, sizes and functionalities.

German quality and heritage

Viessmann is one of the leading international manufacturers of heating and industrial systems headquartered in Germany since 1917. Today, the  Viessmann Climate Solutions SE has about 12,750 employees worldwide. We have a strong international outlook, maintaining 22 production companies in 12 countries, subsidiaries and representatives in 74 countries, and 120 sales offices around the world.

There are already Viessmann footprints around us. Our Hong Kong office has successfully completed different kinds of residential, commercial and industrial projects from the private or government sector for over 20 years. We are the partner you can count on!

Viessmann's German heritage obliges us to offer products at the highest quality and safety standards.  

ViBooks – documentation & brochures

In our central, clearly laid out ViBooks database, you can quickly and easily find the operating instructions, data sheets and all kinds of brochures you need.


HK & Macau Sole Distributor I Energy Trading Co Ltd.

Service Center: DD226 Lot 815, Clear Water Bay Road Tseng Lan Shue, Sai Kung, N.T.

CS Support:
+852 2667 6662
+852 9867 6452 (Whatsapp Only)

Office Hour:
Monday to Friday 9:00 am to 5:30 pm
Saturday 9:00 am to 12:30 pm

Closed on Sundays and public holidays