hotun product warranties



hotun dry trap tundish

10 Year Conditional Warranty

10 year warranty logo hotun branding element

To qualify for the 10 Year Conditional Warranty, the installer must register the product within 14 days of the installation date. Failure to register the product and carry out the annual service may invalidate the warranty.

A copy of the Installation and Commissioning Record must be filled out and a copy returned to RA Tech UK Ltd at time of installation, or the registration form found here, must be filled out and submitted from our website within 14 days of the installation date.

If you have multiple installations on a single project, you can group the entire installation into one project warranty application

In subsequent years, the tundish must have the annual service checks and subsequent service records filled out by a competent engineer, to continue to validate the conditional warranty.

When installed in compliance with the installation instructions, is registered and has all of its relevant annual service checks, all hotun dry trap tundishes are warranted for a period of 10 years for any manufacturing fault or defect.

The customer should be given the signed “Installation, Commissioning and Service Records” found on the installation leaflet at the completion of the installation.

Please follow this link to download a printable copy of the hotun range installation, operation, service and warranty instructions

In the unlikely event that the product develops a manufacturing fault during this period, in the first instance, please send an email to with the subject title of “Warranty Claim” stating the issue with the product, or call us on 01332 702678.

hotun detect alarm unit

2 Year Standard Warranty + 1 Year

(if registered – conditions apply)

RA Tech UK Ltd provides a standard 2 year Warranty (+1 year if registered) from the time of purchase from any manufacturing fault or defects with the product (this does not apply to the battery). To qualify for a free 1 year warranty extension you must register your product within three months of your purchase date.

To register your hotun detect alarm unit, please fill out our online registration form here

Warranty Claims Procedure

If you think you have a faulty product, please fill out our hotun detect Warranty Claims Form or send an email to with the subject title of “Warranty Claim hotun detect” stating the date of purchase (with proof) and let us know what has gone wrong. Alternatively, you could call us on (01332) 702678 and speak to one of our team.

Get In Touch

Registered Address

RA Tech UK Ltd
6 Nottingham Road
Long Eaton, Nottingham, UK

T: 01332 702678



In one simple fitting, hotun solves the problem of compliantly running a PRV valve discharge from a pressurised hot water cylinder relief valve or boiler pressure relief valve to a local waste or soil pipe.

hotun combines a tundish and a non-return valve to make a dry trap tundish which acts as a visible early warning device and prevents foul odours from escaping from the waste/soil pipe.


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