Over 60 Years of Continuous Development and Innovation

Justsen Energiteknik A/S is an original equipment manufacturer (OEM) specializing in biomass boiler systems. We work through our technical partners in selected markets and together we deliver complete biomass boiler plant projects and after sales support. With our long-lasting partnerships worldwide, we have been able to carry out most complex projects successfully and have been doing so for sixty years. We focus on doing what we are best at and trust our technical partner with local works to be able to offer a competitive price to the buyer as well as to fulfill environmental requirements. We design and manufacture advanced biomass boiler systems. There may be a long time from design and planning phase to project’s implementation, but with Justsen you get support all the way. Each Justsen boiler is 90% manufactured in Denmark. Justsen Energiteknik A/S is a Danish owned company with its headquarters and production located in Aarhus, the second largest city of Denmark.


To be a highly specialized world leader in heating technology and maximum energy utilization from biomass.


To provide customized solutions of advanced biomass plants which last longer, require a minimum of maintenance, and offer a faster return on investment for our customers.


Environmental Awareness: We employ the very latest know-how in environmental technology which means minimal emissions of dust, waste substances and hazardous gases, as well as other compounds that impact the global environment.

Continuous Development and Innovation: We have been using state-of-the-art technology for years and been always able to think in alternative and innovative ways offering the latest technological know-how.

Loyalty: We always look to establish lasting relations with our customers and partners and ensure instant assistance.

Efficiency: We generate heat from all types of biofuel which otherwise would go to waste.



Established Justsen Eesti OÜ, a wholly-owned subsidiary, in Estonia.


Justsen celebrates the 60th anniversary.


Justsen acquires and revives Euro Therm A/S. A wholly-owned subsidiary.


Euro Therm 2019 A/S established in July.


Feasibility study and pilot project for biomass in China completed.


Registration of a subsidiary in Australia, Justsen Pacific Pty Ltd.


The launch of a new hot water boiler line ARGUS Vertical for wet wood chips and bark. The first plant running on this new technology is a 2.6 MW district heating plant, Løsning Fjernvarme, in Denmark.


Justsen developed its own bag filters. Today, there are many plants successfully running with the new bag filters, which are designed for both indoors and outdoors use and have an innovative internal bypass system.


The first combined heat and power (CHP) plant delivered to Termonova in Slovakia.


Half century mark of the company’s foundation.


Justsen entered the Latin American market and installed several large-scale steam boiler systems for multinational customers.


Acquisition of the boiler manufacturing company Argusfyr Energiteknik A/S. The ARGUS brand name being kept for standardized hot water boilers from 2012.


Claus Justsen, son of Bent and Lise Justsen, is appointed the new CEO.


Justsen Energiteknik A/S is established as a limited company.


The first cyclone based flue gas cleaning system was delivered to comply with new clean air legislation.


Danish national television aired a documentary following Lise Justsen, one of the first female CEO’s in the energy business.


The first oil crisis meant that residual waste from the wood working industry could compete with fossil fuels. Bindslev Listefabrik ordered the first boiler to deliver heat through the district heating network.


After the untimely death of Bent, the management of the company was taken over by his wife, Lise Justsen.


The first wood chip boiler plant exported to Norway.


The first boiler plant for waste wood was sold to Møbelfabrikken Vi Tre in Viby, Denmark.


The company was founded by electrical engineer Bent Justsen, a newly certified inspector of oil heating plants and a licensed mechanic.

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