Long-term solutions

Rinheat Oy develops its own products and innovates solutions for the future. Our main focus is on the pulp and paper industry, but we also offer advanced equipment solutions for other areas of the process industry.

Rinheat Oy - The preferred technology partner for the process industry

Our story begins in 1975, when our company's founders Arvi Artamo and Pentti Juhola started working at Rintekno Oy. As a result of the cooperation, the first heat recovery systems were created, which are still the cornerstone of our operations today. Product development continued, and Rinheat Oy has operated as an independent company since 1993.



Over the years, we have achieved many significant milestones. We have patented several of our solutions, our devices are used in factories all over the world, and the application areas of our technology have been expanded to, for example, bioprocesses. At the same time, we have been able to maintain our position as an internationally respected Finnish expert company.


Changes in paper and pulp production have also had a strong impact on Rinheat's operations. Our goal is to become Europe's leading supplier of evaporation plant modernizations and heat recovery processes.

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We create added value for future technology

Cost effectiveness

Smooth organization & quick response

Energy efficiency & lower carbon footprint

Better reliability & efficiency

References & success stories

Implementations that have increased production efficiency in Finland and around the world.

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Our key events on the timeline

1975

Arvi Artamo and Pentti Juhola started working together in Rintekno Oy.

1983

The first 3R Heat Recovery System was delivered to Rauma-Repola Oy in Finland.

1984

Rinheat Oy was first established as a subsidiary of Rintekno Oy.

1985

The first international 3R Heat Recovery System deliveries; 2 units to Sunds Defibrator AB in Sweden and 3 units to C-E Bauer/Licensee in Canada and USA.

1987

The first evaporation system delivery to Ekokem Oy in Pori, Finland.

1990

Shares of Rinheat Oy were sold to Ahlström Machinery Oy.

1993

Arvi Artamo and Pentti Juhola acquired all of Rinheat’s business and technology and established the new Rinheat Oy.

2001

The first Eight-effect evaporation unit for BCTMP effluent water was delivered to Metsä Board Corp. in Joutseno, Finland.

2003

A new type of a Circulating Oil Evaporation system was delivered to Ekokem Oy in Riihimäki, Finland.

2005

The second Eight-effect evaporation unit for BCTMP effluent water was delivered to Metsä Board Corp. in Kaskinen, Finland.

2009

A new type of recovery boiler for BCTMP concentrate was delivered to Alrec Boiler Oy, a joint venture company with Metsä Board Corp. in Kaskinen, Finland.

2013

The first evaporator upgrade for a chemical pulp mill was supplied for Stora Enso Corp., Heinola Mill, Finland.

2015

The first patented OT-concentrator for black liquor was sold to Kotkamills Oy, Kotka, Finland.

2016

JV partner Metsä Board Corp. purchased the Alrec recovery boiler from the jointly owned company, Alrec Boiler Oy. At the same time Rinheat purchased all of the shares in Alrec Boiler Oy held by Metsä Board Corp. Rinheat becoming the sole shareholder of Alrec Boiler Oy.

2017

Dissolution of Alrec Boiler Oy (the limited liability company) completed. The first patented CC-condenser was sold ENCE, Pontevedra, Spain.

2019

The first heat treatment system for the reduction of viscosity of black liquor was sold to Stora Enso Oyj, Oulu, Finland. The first methanol recovery system was sold to Kotkamills Oy, Kotka, Finland.

2020

The first heat recovery and emission control unit for bioconversion process was sold through Valmet to UPM Oyj, Leuna, Germany.

2021

The first multistage air heater for pneumatic chip dryer was sold through Valmet to SCA, Ortviken, Sweden.