News

BESA approved HIUs

Published: 17-02-2026

As an official affiliate member of BESA (Building Engineering Services Association), our HIUs are tested and registered to ensure your projects are installed with the best. 

What is BESA? 

BESA is the UK’s leading trade association for companies that design, install, commission and maintain heating and cooling projects. Their in-house expert teams specialise in legal and commercial, HR and employment affairs, health and safety and technical areas within the building engineering services industry, all to ensure that we can provide quality and promote excellence to our customers. 

Designed with the consumer in mind, BESA’s Test Regime ensures the HIU market meets the needs of those developing and designing heat networks that ultimately benefits the consumer. 

How can BESA help you? 

Our Flow 8500 Indirect and Greenstar Indirect HIUs are BESA certified meaning that they meet the standards for a heat network built with the customer in mind. These HIUs have been put to the test and their performance has met BESA’s standards. By choosing our HIUs you can rest assured that your customer will also be satisfied. 

By combining both Worcester Bosch and BESA’s expertise in areas such as delivering building engineering services and policy navigation,  we can provide you with a library of online courses to stay up-to-date and continue professional development in an ever-changing industry. 

Take a look at our HIU range