Heaters are fiberglass-reinforced silicone rubber.

Nonstandard-size containers are no problem—use the hook-and-loop closure to adjust these heaters to fit a range of diameters.

To prevent hot spots that can damage heat-sensitive materials such as adhesives, sealants, and food, these heaters warm the air around containers without touching them.

An adjustable thermostat senses the container’s surface temperature to automatically control heat output.

Often used for temporary heating in sinks and pails, these heaters have a circular base that sits at the bottom of containers. Remove them from the container after heating its contents.

Often used for freeze protection in outdoor containers, these heaters float on the water’s surface and automatically keep the temperature between 45° and 65° F.