The Warmers emit particles and give a special message in the local chat every hour. This feature can be turned off or on.
Rez out a meltie, click the warmer to load
To remove a previous meltie, click the warmer and select clean
1 meltie will last one week in a warmer if left out in Second Life. Melties are consumables you craft in the DFS system. The recipes for the melties are found on the DFS recipe page.