Thermal Transfer Technology Limited (3T), is based in Seaham in the North East of England. The company can trace its history back to 1961 when Mogens Thomsen started his engineering business in Denmark. Since then the company has always put a lot of pride in it's products. 3T as we know it today was established in 1990 and has since grown into one of Europe’s leading manufacturers of finned-tube Heat Exchangers. 3T has a wide range of standard products which cover multiple HVAC and Refrigeration applications within a number of different market sectors.

The factory and office sits on a 5.85 acre site near the North-East coast. Currently we have a staff level of nearly 100 working full time, split with 17 office staff and 80 production staff working over multiple shifts. With over 6000m² of custom built production space we are able to offer coils and units at the highest quality level with the knowledge that our lead times will be able to meet and often exceed most offered within the market.

From our factory in Seaham we can manufacture a range of coils in 5/16”, 3/8”, 1/2” or 5/8” tubes, both in close and wide tube configurations, using a number of different materials to meet each projects requirements. 


We have PED certification for coils as pressure vessels. Our products are approved and certified by independent test house, TÜV: Essen.

Contact us on +44 (0) 191 523 8002 or 




Jonathan Smith
Business Development Manager

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Kevin Tumilty
Sales Director


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Anders Thomsen
Managing Director


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Stuart Barnes
Manufacturing Director


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Derek Hill
 Technical Sales Director


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