Gas boiler codes

All the information presented on this website is for general guidance and information purposes only. It is provided for use by professional qualified installers who are registered with Gas Safe. The information is not intended for use by people engaged in D.I.Y.

The information is provided by Bosch Thermotechnology Limited and while we endeavour to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability or suitability with respect to the information. Any reliance you place on such information is therefore strictly at your own risk. We accept no responsibility for any action which an individual or business may take based on their reading of the information contained on this site. The information should be considered to be only part of the diagnostic process and any information disclosed on the site should be verified by a full inspection of the appliance.