Our highest priority is the safety of all our valued customers and colleagues, especially as we face the battle against COVID-19. Please read our coronavirus update here

Andrews Water Heaters logo

Built to perform

Try it. Love it. New Size-it is here.

The UK's best hot water sizing tool just got even better

The UK's leading professional water heater sizing tool is now more user-friendly and informative than ever before. It's quick, personalised and available online on any device, any time.

Designed with your needs in mind, you can manage a portfolio of projects and tailor the sizing to your exact property requirements. Its comprehensive database allows you to select the different parts that make up your property type and hot water requirements.

Size-it will then recommend the most suitable Andrews Water Heaters product for your job, along with a detailed summary report and all the technical and up-to-the-minute legislative information required to complete a hot water schedule.

Find out more about why you should use Size-it for your next project here.

Benefits of registering for Size-it...

Benefits of size it

Designed specifically for the UK market

Benefits of size it

Accessible on any device, anywhere, anytime

Benefits of size it

Up to date legislation

Benefits of size it

Personalised and responsive

Benefits of size it

User friendly and intuitive

Benefits of size it

Manage a portfolio of projects

Benefits of size it

Unrivalled supporting content

Benefits of size it

Additional efficiency credits

Register for Size-it >

If you wish to discuss your recommendations you can contact your Area Sales Manager