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A Higher Degree of Performance

Farnam Custom Products is an industry leading custom electric heater manufacturer. Our innovative air heater solutions from Farnam Custom Products improve operational effectiveness, enhance product reliability, and reduce costs for our customers. We can do the same for you.

Please take a few minutes to review our website. Here you can find lots of solutions created by our process air heaters, surface heaters, temperature controller units, and advanced heating elements. Give us a call with your application needs and challenges. We'll listen. And we'll apply more than 60 years of successful air heater design experience to arrive at a long-term, cost effective solution that fits your specific requirements best.

Tech Specs Archive

Find Technical Specification PDFs for all of the standard products in one convenient location.

View the Tech Specs Archive

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  • Engineered for Engineers

    Our flow torch family of products thrive in the harsh conditions of industrial process. Long lasting, dependable, repeatable results. Learn More »
  • Innovations to Fit Your Needs

    Outdoor enclosures are subject to harsh temperatures and humidity. Our robust axial fan heater keeps this customer's outdoor ATM functioning year round. Learn More »
  • Long Lasting Performance

    Packaging lines require accurate and consistent heat to ensure maximum output. Our heat torches provide pinpoint heat up to 1200° F. Learn More »
  • Reliability when it matters

    Adding heat to our customer's existing medical device provided a significant benefit to the patient.
    Learn more about our Custom Heaters »
  • Heating Solutions, Affecting Lives

    Our client needed a custom solution to heating failures in their existing line of medical equipment.
    Learn More »
  • Solutions for a Variety of Industries

    Working within the small amount of space available we designed a custom heating solution that allows the medical equipment to maintain a precise temperature. Learn More »


Latest Videos

Flow Torch Product Demo

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Flow Torch Product Demo

Heat Torch Product Demo

Heat Torch Product Demo thumbnail

Heat Torch Product Demo

Cool Touch Product Demo

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Cool Touch Product Demo

More videos available on our video archive page.

Featured Product

Cartridge Heaters

Cartridge Heaters

Cartridge heaters are available in a wide range of lengths and diameters, with temperatures up to 1600° F and up to 480V. Most configurations are UL, CSA, and CE approved ... {more}

Website Tools and Services

Determine Your Heater

A tool that lets you quickly view and compare all of our standard products. Plug in parameters you know you need and the list will be filtered accordingly.

Engineer Talk

Articles on a variety of heating element engineering topics. Written by engineers for engineers.


Calculators for electric heating applications. Calculations for flow rate, temperature conversions, single/three phase, & more.