Dejong is one of the leading, independent manufacturers of stainless steel hot water cylinders in Europe. In over 40 years Dejong has obtained an extensive knowledge and experience in engineering and manufacturing high-grade stainless steel hot water cylinders. Yearly more than 120,000 hot water cylinders with a capacity of up to 1000L are produced.


Dejong has its own Research and Development Department as well as laboratory facilities where research is conducted in order to improve the hot water performance and durability. Dejong uses state of the art robotic welding techniques. To guarantee quality Dejong manufactures every essential part of the cylinders in house.


Suitable for all water types. Be that well water, salt water or aggressive type water, the Dejong cylinder can handle it, without the need for yearly expensive maintenance or replacement parts. Dejong also manufactures the WPS Heat Pump dual coil cylinder. The types of coils used in this cylinder allow for the best and fastest recovery of any cylinder available in the UK and Ireland.


MARINE GRADE 316L Stainless Steel

Stainless steel is the ideal material for sanitary hot water cylinders and offers a great deal of advantages compared to copper and enameled steel. 316L Stainless steel is safe and hygienic, strong and light in weight. It is free of maintenance and has an almost unlimited durability.


Only the very best grade of stainless steel, 316L marine grade is used. This is why we offer a full 10 year no quibble guarantee in writing to all our customers. There are no hidden terms and conditions. With a failure rate of below 0.02% we are confident that you are getting the best cylinder available in market today. It has been used for 18 years in the UK & Ireland.


ISO9001 Certified

This guarantees the quality by measuring and checking every product of a new production batch with electronic measuring equipment. Also every single hot water cylinder is submitted to a 100% leak free test.

DEJONG Dual Coil Cylinder

  • Advantages

    • MARINE GRADE 316L Stainless Steel
    • ISO9001 Certified
    • Maintenance FREE
    • Extremely long life span
    • Lightweight material, easy to handle
    • No anode required
    • No servicing required
    • Suitable for all water types
    • Smooth surface coils, no adherance to lime scale

    Smooth surface coils ideally suit stoves for gravity circulation.

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