What is Hydronics?

What is hydronics?

Hydronics is the science of how water flows through a heating system to deliver heat efficiently. It encompasses all the tools and practices of your trade, including pumps, low loss headers, DT balancing, radiator sizing and compensation controls. 

It’s the foundation of every gas, oil or heat pump system you work on and a core skill for every heating engineer, but it's been completely left out of modern domestic heating training. 

As hydronics legend Kimbo Betty points out, “we’re still fitting systems as we were 40 years ago, which is completely out of sync with condensing boiler and heat pump technology and the root cause of most problems we encounter. Heating engineers need to be equipped with the skills to optimise and problem solve and that can only happen when they learn hydronics.”

Why should I care?

Nearly all performance issues you encounter are hydronics related, even many boiler faults. A working knowledge of hydronics means you can problem solve quicker, reduce call-backs and delight your customers. It makes you a master of your craft!

Moreover, hydronics is a common practice across all wet heating systems, which means you can learn it once and apply it everywhere. This is especially valuable for gas engineers who may feel hesitant about transitioning to heat pumps. By understanding solid hydronic principles for boilers, you not only optimise the systems you work on today but make the move to heat pumps seamless and straightforward.

But is it hard?

The good news is, it’s not! Our Hydronics Unlocked training programme simplifies hydronic principles into clear, practical steps, enabling you to work smarter, faster and with greater confidence across all heating technologies. It provides the essential skills and knowledge foundation every heating engineer needs, regardless of the systems you’re working on today.

Need to know more?

Read about our Hydronics Unlocked Programme

Ready to start?

Book onto an in-person kick-off day