Android 4.4.2 external SD card mount paths and Titanium Backup
On most phones, /storage/emulated/legacy, /storage/sdcard0, /sdcard   points to the internal memory rather than the external SD card (but if you want to be completely sure, open up a Terminal Emulator and type the mount command with no arguments).  

Titanium Backup does allow changing the backup path though. 


Open the app &rarr; press the Menu button and select Preferences .... 
Scroll down to find the Backup folder location option and select it. 
In the popup, tap on Storage provider and select Filesystem storage - Ext. SD card -- this will display the contents of your external SD card
Select a folder to choose as your backup location, or choose Use the current folder to make Titanium Backup save backups onto the root directory of your card.