Serpentine coil for thermal fluid heater

Serpentine Coil Technology: How Our Innovative Coil Design Sets Our Thermal Fluid Heaters Apart

Serpentine Coil Thermal Fluid Heater interiorWhen it comes to industrial hot oil heaters, there are a number of providers in the industrial heating equipment industry to choose from. Many of them carry a variety of heating products appropriate for use in a variety of industries.

With so many options, it can be hard to know which company and product to choose. Shopping out the possibilities and determining which heating product or system is most appropriate for your business can be a daunting task.

Here at American Heating Company, we’d like to make that process a little bit easier for you by highlighting exactly what sets our thermal fluid heaters apart from the rest.

Heating Coils & Serpentine Coil Thermal Fluid Heaters

Most industrial heating equipment manufacturers solely produce thermal fluid heaters that feature helical heating coils. While we do produce helical coil thermal fluid heaters for clients in need of this specific type of equipment, the majority of thermal fluid heaters we produce feature serpentine coil technology. In fact, our standard thermal fluid heaters are designed and equipped with the more efficient, durable serpentine coil technology.

While helical coil heaters feature helically wound coils, our serpentine coil heaters feature serpentine radiant coil bundles. The difference between the two coil types can be seen in the cross-section images below.diagram of American Heating Company Heater vs. traditional helical coil heater

Serpentine Coil Heat Exchange

In the radiant section of the heater (A), heat is transferred to the front, sides and back of the serpentine coil. This allows for more even heat distribution, less coil degradation, longer tube life, and higher operating oil temperatures. In the convection section (B) of our serpentine coil, heat is transferred to a much larger surface area in our integrated economizer. This reduces stack temperature and makes the serpentine coil hot oil heater 10-15% more efficient.

Helical Coil Heat Exchange

In the radiant section of the heater (A), heat is transferred by direct radiation only on the inside surface of the helical coil. Convection (B) only occurs as the vapors pass over the outside surface of the helically wound coils, before leaving the stack at a much higher temperature. Although less efficient, this design is more compact. These, and other, factors set serpentine coil thermal fluid heaters apart from typical hot oil heaters and enable them to provide a number of benefits.

Benefits of Serpentine Coil Heater Design

Hot oil heaters that feature serpentine coils offer a number of advantages over conventional hot oil heaters, including:

Higher Efficiency

Serpentine coil heaters are 10 to 15% more efficient that hot oil heaters that feature helical coils.

Low Level of Fluid Degradation

Heating fluid lasts longer when utilized with a serpentine coil heater.

Higher Operating Temperatures

Typical hot oil heaters offer limited operation at fluid temperatures over 400°F, but serpentine coil hot oil heaters can operate efficiently at temperatures up to 650°F.

Long Tube Life

Tube failures are common in hot oil heaters featuring helical coils. Serpentine coils typically last two to three times longer than standard helical coils. As a result, it’s not uncommon for serpentine coil heaters to last 30 years!

Easy Maintenance

AHC serpentine coil thermal fluid heaters require minimal maintenance. When they do require maintenance, the serpentine coil can be removed and a tube can be repaired or replaced, typically in less than one day. Learn more about how serpentine coil heater repairs differ from helical coil heater repairs.

For more information about what sets our thermal fluid heaters apart from the competition, check out our page detailing the key features and benefits of thermal fluid heaters from American Heating Company or download our informational brochure!

Our Serpentine Coil Heating Technology Can Benefit Your Business

Finding the right heating equipment for your business can be a challenge. At American Heating Company, we are proud to offer products that are built to last, requiring minimal service and maintenance so you can keep your facility up and running.

If you are in the market for an industrial hot oil heater, be sure to keep us in mind. We are the only industrial heater company in our industry featuring serpentine radiant coils in our standard thermal fluid heater design. If you are looking for an efficient, cost-effective hot oil heater for your facility, our serpentine coil thermal fluid heater may be the answer.

Interested in Learning More About Serpentine Heating Coils?

Looking for additional information about serpentine coil thermal fluid heaters and their benefits? These two articles are a great place to start:

Mechanical Reasons to Choose a Serpentine Coil Heater Over a Helical Coil Heater – Learn about the design and structural aspects of serpentine coil thermal fluid heaters that set them apart from helical coil heaters and help to make them the more efficient choice.

Thermal Fluid Heater Repairs: Helical Coil Heaters vs. Serpentine Coil Heaters – Read about common thermal fluid heater repairs and how the process for repairing serpentine coil heaters differs from the repair process for helical coil heaters.

Why Your Helical Coil Heater is Less Efficient – Get the details on exactly why helical coil thermal fluid heaters leave facilities at a disadvantage when compared to serpentine coil heaters.

Have questions specific to your industry or application? Give us a call today at (715) 748-5888 or contact us online to learn more about our hot oil heaters and the other industrial heating products we offer.

Want to know what it would cost to implement one of our thermal fluid heating systems in your plant? Request a quote today using the form below and we’ll get right back to you with the information you are looking for!

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