How-to: Understand your heating system Wise homeowners have their domestic boilers and heating systems checked regularly by a competent heating engineer. Nonetheless, it is sensible to be familiar with the layout and terminology of the system. This will facilitate better communication with an engineer in an emergency.

What you'll learn Here's an overview of what this How-to covers: Boilers Float valves Control valves Get the How-to This How-to gives step-by-step instructions to help you through the job from start to finish. We've created the How-to in a format that allows you to print it out and use it on the job. To view and print the How-to, press 'Download file'. You'll need Adobe Acrobat. If you haven't already installed Adobe Acrobat, click 'Get Acrobat' for a simple download. Get Acrobat