The Grant TechBox is an app where heating engineers can download all of the current and archived installation manuals for Grant products

One app, lots of features

The TechBox app is an electronic resource for heating engineers and installers to turn to for all of Grant’s product manuals, both current and archived. Easy to navigate with its clear structure, engineers can download the product categories relevant to them and use the app when onsite, even when there is no internet connection. Through the TechBox, the installation manuals and user guides are available as PDFs downloads to view on mobile phones and tablet devices.


The TechBox has been designed to be straightforward to use with plenty of useful features for users, including: 

  • Clear pathways and structured categorisation makes finding documents easy - simply choose the product category, model range and select 'current' or 'archive'
  • Installers can select the product categories most relevant to them - any combination of categories can be downloaded and additional categories can be added or deleted at any time, allowing engineers to tailor the TechBox to suit their needs
  • Off-line capabilities allowing users to download manuals even when internet connection is unavailable
  • Search function so users can directly look up specific documents
  • Option to create 'Favourites' enabling engineers to save the documents they use most regularly
  • Always up to date - when a manual update is made, users will be notified via a number icon in ‘Settings’. They simply need to navigate to ‘Manage’ and select ‘Update’ which will allow the TechBox to update all the changes within the product categories downloaded.


User-friendly and a dependable resource when out on the road, the TechBox app is compatible with iOS and Android devices. To download the app, simply follow one of the links below and add this digital toolbox to your mobile or tablet today. 

iOS Devices - Download via Apple Store

Android Devices - Download via Google Play

Looking for a part

Use our online spares catalogue which lists all of the parts we currently supply for all Grant products

Visit Spares Website

Home Heating Blog

Discover more about home heating solutions, care and support with our informative blogs

Read more
Return to top
Are you a homeowner? Please click here.