Heat Transfer Fluid
Heat Transfer Fluids for Every Application. Service That Never Sleeps
- Fast shipping - U.S. & Canada warehouses
- Free fluid analysis & tech support
- Need advice? Get answers - no obligation
Choose Your Heat Transfer Fluid
Fluids for most applications between -120°F and +650°FFind yours
Find the Right System Cleaner
Are carbon and sludge crippling your system?Get things moving again
Questions? We're here to help
Not sure what you need? Expert help is just a click or call away.Contact Us
A wealth of experience and proven results. That's the Duratherm Advantage.
Since 1977 our goal has been to strive for constant innovation and improvement. Through years of ongoing R&D we are proud to offer the industry's most expansive line of heat transfer fluids (also called hot oils, thermic oils or thermal fluids) as well as System Cleaners. All of our products utilize our ground-breaking additive technology which has allowed us to create the industry's longest lasting and cleanest running line of heat transfer fluids.
News & Notes
Feature story
Insulation for heat transfer systems
Choosing proper insulation is an important step in the design of a thermal fluid system. The wrong choice here can have serious safety implications.More
