Product Spotlight: Hot Box

style Hot Box

What Is A Hot Box?

The Powerblanket Hot Box, more officially known as our Bulk Material Warmer, is a great option for those less-than-common materials. Attempting to heat containers of varying shapes and sizes (including entire pallets of materials) can be tricky. We are proud to offer top of the line Hot Boxes that provide safe, evenly distributed heat to anything placed inside.

Industries Served

Powerblanket’s Bulk Material Warmers offer heating solutions to many different industries that need to heat a wide variety of containers all at once. Whether you need to protect materials from freezing, bring them up to a workable temperature, or apply even higher heat levels, Hot Boxes are the answer. Their versatility has made them valuable assets for a wide variety of industrial applications:

  • Manufacturing
  • Oil and Gas
  • Agriculture
  • Concrete
  • Construction
  • Chemical
  • Food and Beverage
  • Water Purification
  • Automotive
  • Welding
  • Shipping and Transportation
  • Mining

Industrial Spotlight: Road Repair and Construction

When Vern Fiehler (of Quick Road Repair) needed to showcase his Instant Road Repair (IRR) product to the Juneau Alaskan International Airport, he encountered immediate problems. In order to demonstrate his product, he needed to bring the IRR up to working temperature. He attempted to use a forced-air ceramic heater to warm his materials and equipment, and unfortunately the outcome was catastrophic. The ceramic heater overheated his IRR product by 40°F / 22°C—causing it to perform horribly. In the end, it cost Vern a pallet of valuable road repair product.

Because of this learning experience, Vern now uses Powerblanket Bulk Material Warmers. Our Hot Boxes safely and evenly heat his products for demonstrations and he no longer has any problems with overheating or poor product performance.

Hot Box Features

Our world class team of engineers have infused our Hot Box Heaters with a long line of beneficial features.

Powerblanket infographic on the benefits of hot box bulk material heaters

Even Heat Distribution

As the road repair case demonstrates, not all heating products are created equal. Unfortunately, because of desperation, some turn to heating methods that offer little to no thermostatic control. Overheating can cause combustion, scorching, smoking, and as a result, create a dangerous working environment.

Powerblanket’s patented blankets offer even heating over the entire surface. This even distribution eliminates hot and cold spots and protects your materials and equipment without overheating.

Improve Viscosity and Flow

Fluid storage during winter conditions can be very difficult. Fluids can freeze outright, or become too viscous to even be usable. Applied heat lowers a fluid’s viscosity levels so it can be poured, drained, pumped, spread, and used during cold temperatures. Powerblanket Hot Box heaters efficiently solve viscosity issues and keep your operation running all winter long.

Protect Critical Materials

Applying heat to temperature sensitive chemicals and gases requires precision and care. Hot spots and sudden changes in temperature create dangerous storage environments. Our Pro Bulk Material Warmers give you direct control over your temperature ranges and heating schedules. This feature allows you to heat sensitive materials gradually so you avoid flash points, smoke points, and boiling points.

They also come equipped with a rugged, weather resistant, vinyl shell that reduces heat loss and protects your sensitive materials and equipment from the elements.

Easy Installation

When temperatures plummet unexpectedly or mother nature throws a brutal winter storm your way, the last thing you need is a finicky, time consuming heating product that is more trouble than it is worth.

Powerblanket Hot Box installation instruction infographic

When cold weather catches you off guard, Powerblanket has a fast and efficient heating solution for you. Our Hot Boxes are simple to set up quickly, get running, and take down. The compact storing size also makes it easy to store them and reassemble for future use. Our Bulk Material Warmers can be used on-site or even during transportation. Their convenient portability means you can take your heating solution on the road…literally!

Safety Certified

All in all, we pride ourselves in offering safe, high quality heating solutions that get you back to work. For that reason, all of our patented heating products are certified to UL, CSA, and CE standards.

A Hot Box For Every Project

The Hot Box comes in three sizes, as seen here. Don’t see the size you need on our website? Order a custom Hot Box, designed specifically to your needs. Our engineers are ready to create the industrial heating blanket of your dreams.

Contact Powerblanket today to find the perfect bulk material heating solution for your needs at 855.214.9407 or by email at [email protected].

The Powerblanket Hot Box is the perfect solution for your bulk material heating needs.


Shelby Thompson

Shelby Thompson is the head of standard product sales for Powerblanket. He has a distinguished military career, having served in both Afghanistan and Iraq. In his time in the Marines, Shelby acquired an impressive skillset that he now uses in his current role. When he's not working, Shelby loves spending time outdoors with his wife, son, and daughter. He is also a semi-keen hunter, fair weather fisherman, and shooter. Unfortunately, Shelby also has something of an unlucky streak when it comes to Fantasy Football at the company.