For anyone who wants to know more about our products and how to install or warranty.


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New Product Alert

Innovative & pioneering product coming soon

We will soon be introducing an exciting new product into the hotun dry trap tundish range of products.

Which hotun version to use?

hotun tundish flow rates

The patented hotun range of dry trap tundishes, allow a conspicuous, visible & safe means of discharge from a sealed system boiler or unvented water heater’s relief valve, to be compliantly connected to an internal waste or soil pipe without allowing foul odours or gasses back into the building

All our products allow for easy identification of historical relief valve operation via its open-sided construction



We are happy and proud to have been nominated for a number of awards and recognitions for our dry trap tundishes, click here for more info


Please click for the hotun YouTube feed


Please click here for the gallery of hotun & hotun hiflo installations sent in to us by our customers

Feature Video:

See hotun featured in Ariston’s clip of their new Andris Lux unvented water heater
The video automatically starts in the right place (5m 47s)

hotun and hotun hiflo are patented, dry trap tundishes and are the only dry trap tundish officially accepted for use by all of the following companies;

RA Tech UK Ltd are proud to be associates of many Professional Industry bodies

hotun and hotun hiflo products are tested by accredited UKAS bodies