By Dennis Collin
Bonus Revit 2015 content for MEP Users! 
Last year Autodesk did a Content Pack specifically aimed at the MEP sector. It is available on the subscription site. Content was uploaded in June 2014.
It has about 4 GB of content including a lot of elements not included in the default library such as underfloor heating, refrigeration manifold components, more data devices, clocks, timers and sensors for access control and alarm and security systems.
Although it describes the pack as Central European, the symbols of the various components do seem to be compliant with UK standards.
Visit this link now Autodesk Subscription Site and login to get your additional content it will save hours of needless work!
Install the content pack and ensure that your Revit is configured to access this improved content.