Our fresh water range includes different hot water calorifier types, specifically designed for maritime applications. The inner tank is available with stainless steel (30-1000 litres) or copper (1000-3000 litres) lining. The outside cover is made of epoxy coated steel plates. 

The sturdy configuration of all elements is offshore proof and guarantees a long lifespan. If requested, we can supply you with a plug and play skid.

The calorifiers are manufactured standard as models with a stainless steel inner tank or copper lined inner tank. The stainless steel version is available in volumes from 30 to 1000 litres and the copper lined types are available in volumes from 1000 to 3000 litres. Horizontal models are available. 


Options for heating sources: electricity, steam, hot water or thermal oil, or indeed whatever is in use and available. Electrical heating can be used as main heating or as back-up heating, or in combination with other heating sources.


    • Built on electrical connection box for electrical heating
    • Hot water circulation pumps for tap water
    • Horizontal configuration
    • Build on skid

    Key specifications

    • Customisation options

    • Plug & play set-up

    • Durable, sturdy design

    • Easily installed

    • Horizontal models available

    Special features

    • Time-saving configuration

    • Includes all required accessories and insulation (Rockwool)

    • Outside cover: epoxy coated steel plates

    • Heating and safety thermostats for electrically heated configurations

    Learn more

    • Calorifier certification

      Our calorifiers can be supplied with several classification certificates, including GL, DNV, LR and ABS.

    • Installation and set-up

      Delivered to you as a plug & play unit for easy installation and immediate use. The calorifier includes heating and safety thermostats.

    • World wide support & service, on- and offshore

      Need assistance? Our globally operating support and consultancy professionals are happy to assist you with water quality issues, (pre) commissioning or re-commisioning, surveys, midlife updates and conservation or chemical cleaning advice. Rely on their extensive knowledge and experience; they are experienced in handling support issues in all kinds of environments. In addition, they can train and assist your crew at your site in order to help you achieve optimal operation and maintenance conditions.

      Our international support and consultancy services related to water quality include water safety risk analyses, sampling, water analyses and training.

    Contact our heating specialists!

    • Mark Knoester
      Sales Manager (Trade)
      Hatenboer-Water BV
      +31 (0)10 409 12 00
      Send a message to Mark
    • Vincent van Varik
      Managing Director
      Hatenboer-Water Asia Pte Ltd
      +65 6515 8021
      Send a message to Vincent