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Featured Products & Services

  • 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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    Thermal Fluid Systems(Fired & Electric)
  • 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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    Direct Fired 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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    Process Bath Heaters
  • 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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    Aftermarket Services

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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Reference Center

Our Blog

How to Choose the Right Heater for Your Application

Let the experts at Sigma Thermal help you select the appropriate heater based on your industry and needs. We have a full range of...

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Boiler MACT Compliance: Annual Testing and Burner Tuning

The EPA’s Maximum Available Control Technology (MACT), the emission standard for sources of air pollution, sets forth specific guidelines mandating the maximum possible reduction...

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