- About Us
History & Operations
The references below primarily represent installations across Europe and Asia, supported by Zander & Ingeström’s long-standing experience. ZETA is the exclusive authorized supplier in North and South America and can also support projects in Europe and select parts of Asia.
1898
Zander & Ingeström established by Oscar Zander and Bengt Ingeström
1920
ZETA electrode boilers developed
1930
ZETA electrode boiler patented
1950
Introduced 3-Phase Boilers
1980
Largest ZETA Boiler at 67MW in France
2000
Expanded into the Chinese market
2018
Zander & Ingeström becomes part of the Christian Berner Group
2023
ZETA Boiler USA Inc. formed for the North American market
2025
ZETA Boiler Canada Inc. established for the Canadian market
ZETA Boiler USA Inc.
ZETA’s USA office provides local support for the American market. As Z&I’s exclusive American sales arm, ZETA Boiler USA Inc. has partnered with local manufacturers and consultants to ensure the ZETA product meets local ASME and electrical regulations at competitive timeframe and cost.
ZETA Boiler Canada Inc.
ZETA Boiler Canada Inc. provides local support for the Canadian and South American market. Through ZETA’s first Canadian project, ZETA Boiler Canada has developed a local supply chain of Canada-based vendors and manufacturers to support Canadian regulatory requirements such as CRN & CSA certifications.
Zander & Ingeström AB
Zander & Ingeström (Z&I) was established in 1898 by Oscar Zander and Bengt Ingeström. The company marketed steam turbines and centrifugal pumps. Of the many inventions that was developed by Z&I, the electrode boiler is still being used today and one of the great inventions that has withstood the test of time. Z&I’s ZETA Electrode Boilers was developed in the 1920s and patented in 1930s. It has undergone several generations of product improvements. As the effort for decarbonization and focus in sustainability becomes more relevant, Z&I will continue to provide this time tested product to reduce our reliance on fossil fuel and meet today’s operational requirements.
Z&I offers its line of medium voltage electrode steam and hot water boilers throughout the globe. There are more than 3000 references of these boilers installed worldwide. In 2018, the company became part of the Christian Berner Group (listed on NASDAQ Stockholm: CBTT-B).
Christian Berner
Christian Berner Tech Trade Group (listed on NASDAQ Stockholm) has 126 years of experience of technical trading. We offer quality products and system solutions with a focus on environmental technology from European manufacturers to industries and municipalities in Sweden, the rest of the Nordic region and for electric boilers globally. The Group has a total of 215 employees and net sales of approximately 750 MSEK. Christian Berner Tech Trade AB is the head company for trading activities and markets our product program in the whole of the Nordic region through subsidiaries in Denmark, Finland, Norway and Sweden.
Boiler History
ZETA boilers have almost 100 years of history and development. Starting with 1-phase connection, they have grown to 3-phase — now offering 3-wire connection up to 24 kV and steam pressures up to 950 psig. The largest boiler installed is 67 MW. Fast startup allows service as a frequency-maintaining load for electrical utilities. Latest PLC control in both Siemens and Allen-Bradley.
1920s
Introduced World’s First Electrode Boilers, riveted shells
1930s
1-phase electrode boiler in Finland
1940s
Boilers installed in Sweden, still in operation
1950s
Introduced 3-Phase Boilers
1960s
Introduced electronics controls
1970s
Introduced 3-wire connection with insulated inner tank
1980s
Largest ZETA Boiler at 67MW in France
2000s
Expanded into the Chinese market
2010s
Expanded into Americas market