Exploding Heaters - Marineland Stealth and Stealth Pro (Pictures) - Recall Issued

[abcha0s]

The trouble is, when these things fail they pour toxic chemicals into your tank.

When a glass heater fails, you should be able to catch it by monitoring the temp of your tank. Most people, including myself, recommend a secondary control. I have mine connected to my Apex controller, so a stuck heater won't crash my tank.

An exploding heater is an entirely different story.