Tailor the sizing to your exact project requirements, Size-it will give you all the information you need, anytime, anywhere.Select property type
The UK's original and best hot water sizing tool designed specifically for the needs of the building services industry
Our FAQs are a quick and easy way to find the answers to your Size-it queries.
The quick calculator gives an indication of the range that may be suitable.
It's easy to register and you can start your sizing straight away.
We have a dedicated team of industry experts on hand to help you.