These ETL-listed heaters keep containers warm in areas where hazardous material is present. Also known as heat blankets, they surround drums and totes to heat them up quickly. They’re also insulated with foam or fiberglass to retain heat. They have a built-in thermostat that cycles on and off to keep contents at a set temperature. There's no need to monitor these heaters—since the temperature can’t be changed, there’s no risk of tampering.

Hazardous location environmental ratings indicate whether manufacturers have included safety features in products to facilitate their safe use in a hazardous environment. Before selecting a product for a hazardous location, ensure it is rated for your environment. See About Hazardous Location Environmental Ratings.

Keep gas flowing even when the temperature drops—also known as heat blankets, these heaters wrap around propane tanks to safely warm liquefied gas so it can vaporize. They’re insulated with foam, so they retain heat even in chilly environments. Their built-in thermostat heats up to 90° F, then automatically adjusts the power output to keep your tank consistently warm. Because you can’t adjust the thermostat, there’s no risk of accidentally changing the set temperature. These heaters are sized to fit industry-standard propane tanks. Quickly install and remove them using the buckles or latches.

Made of heavy duty vinyl, these heaters stand up to scuffs, water, and UV rays, so they last even outdoors. The vinyl is NFPA rated for flame retardance; however, you shouldn’t use these heaters near combustible gases or dust. A GFCI is built into the power cord to prevent electrical shocks.

Strap these heaters around cylinders to keep gas flowing when the temperature drops. Also known as heat blankets, they heat cylinders from the outside, safely warming liquefied gas enough so that it can vaporize. They’re also lined with acrylic insulation to retain heat. The thermostat is adjustable, and it automatically turns the heater on or off to keep your cylinder at a consistent temperature. They’re sized to fit industry-standard cylinders.

Made with tough Cordura fabric, these heaters resist mold and mildew, and they’re difficult to tear. Both the fabric and the NEMA 4X-rated controller are weather-resistant, so you can install these heaters on outdoor tanks. Check the current temperature on the LCD display and use the keypad to make changes. Do not use these heaters in hazardous areas.