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Featured Products & Services

  • Thermal Fluid Systems (Fired & Electric)
    Thermal Fluid Systems (Fired & Electric)

    Thermal Fluid Systems (Fired & Electric)

    Thermal Fluid Systems includes two standard types: HC-1 and HC-2. We also offer a range of customized solutions that incorporate custom engineered thermal fluid heaters along with complete systems, parts and ongoing support.

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  • Direct Fired Heaters
    Direct Fired Heaters

    Direct Fired Heaters

    Direct Fired Heaters are available in both convection and radiant convective heater styles. Both styles can be configured in various ways (depending on client requirements). Due to flexibility, nearly any style of the heater can be utilized to achieve a single or multi-style configuration.

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  • Process Bath Heaters
    Process Bath Heaters

    Process Bath Heaters

    Process Bath Heaters can heat various mediums safely. These heaters indirectly heat liquids and gases as the medium passes through process coils that are submerged into a bath solution for heating.

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  • Aftermarket Services
    Aftermarket Services

    Aftermarket Services

    Sigma Thermal offers a wide range of support services to aid all of your needs. Our team is here to help you find solutions to your operation, maintenance, safety, and regulatory requirements.

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Our Company

Inside Sigma Thermal

Watch our corporate video. Get an inside look at our manufacturing facility and meet the team behind our products and services. Whether you need new equipment, service, technical support, training, parts, or retrofits, Sigma Thermal has you covered.

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Our Customer Service

The Sigma Thermal Advantage

At Sigma Thermal, the customer is at the center of everything that we do. Our team is constantly motivated by the sense of accomplishment we get from exceeding customer expectations and providing superior customer service.

The Sigma Thermal Advantage

Reference Center

Our Blog

Introducing Our Flaretec Direct Fired Heaters

Sigma Thermal recently merged with Flaretec to further improve our ability to provide top-quality heating solutions for industrial applications. Together, we have further strengthened...

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Select the Right Process Heater for Your Application

If you have a requirement for heat energy but are not sure what type or size process heating system you need, let our engineers...

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