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Heat recovery at DOT in Ferritslev, Denmark

We visit DOT Ferritslev on Funen in Denmark. DOT is the leading full-service partner in Scandinavia in surface treatment. The molten zinc used as part of the galvanization process releases large amounts of excess heat, which is why DOT made the decision to invest in an exodraft heat recovery system.

The recovered heat is used to heat 13 pre-treatment baths which, previously, were heated by a gas furnace. According to factory manager, Dennis Nielsen, heat recovery on the flue gasses have resulted in substantial savings:Dennis from DOT

“Previously, we used more than 1 million kilowatt hours in gas to heat our pre-treatment baths. That energy now comes from the heat recovery system which means a pay-back period of 2.6 years. At the same time, we have reduced our CO2 and NOx emissions significantly.”

exodraft has handled all facets of the project, from initial planning to final turn-key installation, and this is something Dennis Nielsen has appreciated greatly.

exodraft has been very professional and their implementation outstanding. They have managed the entire project, including sub-contractors, meaning we have had only one contact person. I can highly recommend exodraft. If your company has excess heat, don’t hesitate to contact them today.”

Heat recovery is common sense as it comes with economical, operational and environmental benefits. Visit exodraft-heatrecovery.com and learn more about how to recover and utilize your excess heat. You can even contact us for a free evaluation of your heat recovery potential.

heat measuring

    Fill out this appraisal form to clarify your heat recovery potential:

    How do you see your recovered heat being used (you can select multiple options)?:
    Transferred to the district heating systemUsed in production processesHeating of factory, Warehouse or office premisesUsed for absorption chillers/refrigerationHot water for bathing facilitiesAir curtain & air heating systemsHot water for general cleaning/washing purposesOther

    Related products


    The high-temperature heat recovery units in the Basic Plate Series from exodraft recover unused energy from flue gases and process air. The units are designed to operate in flue gas temperatures up to 600 °C.


    CFIR is a heat-resistant inline fan which supplies gas, oil and steam installations with mechanical draught. Designed to work at continuous flue gas temperatures up to 600 °C, the CFIR can be installed both vertically and horizontally in your duct system, indoors as well as outdoors (from -40 °C to +50 °C), providing you with more freedom of design.

    Write us for a NON-BINDING suggestion as to how we can solve your chimney draught problems.