Type testing of wood stoves, pellet stoves and inset appliances

René Lyngsø Hvidberg

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Wood burning stoves

Type testing of wood stoves, pellet stoves and inset appliances

Danish Technological Institute offers type testing and quality assurance of wood stoves, inset appliances, pellet stoves and slow heat release appliances.

Danish Technological Institute is your all-inclusive partner when it comes to the necessary international and national tests of stoves and inset appliances.

Our laboratory meets standards throughout Europe (incl. Flamme Verte) and also the US-EPA measurement needed for entering the American market. Our laboratory is accredited for type testing by DANAK, notified body (NB no. 1235) and acknowledged by DIN CERTCO. Furthermore, we take part in the standardization work for wood stoves and boilers at European level and we offer our customers counselling regarding requirements and standards.

Our experienced testing staff can communicate in Danish, English, German and French(writing)

  • Europe CE Marking
    • EN 13240 - Testing of wood stoves
      Also available as Fast track test. A simple test for wood stove CE marking including OGC and dust.
    • EN13229 - Testing of Inset appliances
    • EN 14785 - Testing of pellet stoves
    • EN 15250 - Testing of Slow heat release appliances

All tests can be performed with or without water system and with or without catalyst

  • Denmark/Scandinavia
    • Nordic Swan label
    • BEK 1461 - Danish regulation on air pollution from small scale appliances < 1MW
  • France
    • Test and certification for Flamme Verte
  • Norway
    • NS 3058-3059 Testing of wood stoves, inset appliances or pellet stoves for the Norwegian market
    • Safety test on Norwegian firewall
  • Germany
    • Certificates for 1. BImSchV
    • Test and Certificates for DINplus
    • Test of roomsealed appliances - DIBt
    • Test of shared flue
    • Tests for Blue Angel / Blauer Engel
  • UK
    • Testing for DEFRA Smoke Control Area (AEA England)
    • Re-assessment for UKCA label
  • Austria
    • Art 15a-B-VG - Testing and certificate for approval in Austria
  • Switzerland
    • Certificate for approval of the VKF (”Vereinigung Kantonaler Feuerversicherungen”)
  • USA
    • Particle testing to US-EPA Standards of Performance for New Residential Wood Heaters, New Residential Hydronic Heaters and Forced-Air Furnaces

A report in English follows each test, translation to other languages upon request.

Please use the contact form to the right for price information etc. For development projects please visit our project page https://www.dti.dk/specialists/biomass-boilers-and-wood-burning-stoves/projects/31397,4

Luke Smith januar 2019


The practical knowledge and advice that I have gained at DTI has been essential for our development of stoves with proper design elements and combustion.

Testing laboratories have the same equipment wherever you go – but at DTI we discuss solutions, and this is the reason why we keep coming back to DTI for testing, Luke Smith, Head of Development at Hunter Stoves