Smart Sense® Heating System

The Guardian and I-Series Heaters with Smart Sense; L.B. White's auto control pig heaters.

Smart Sense® - Automatic Variable Rate Heat - U.S. Patent No. 9,328,937

Smart Sense® is an auto control, technologically-advanced swine facility heating solution.

This innovative heating technology eliminates the inefficiency of conventional on/off heaters that require manual adjustments and always run at 100% Btu output. In comparison, Smart Sense® heaters are automatically managed through the facility control and operate at firing rates as low as 25% of maximum Btu output.

Guardian Forced Air Heater with Smart Sense Technology in a swine building.

Smart Sense® generates only the amount of heat required to reach, maintain, and hold a desired temperature by automatically modulating Btu output—a proprietary technology engineered for L.B. White forced air heaters and radiant-heat brooders.

  • Automates building temperature management
  • Saves up to 35% in fuel costs
  • Maintains consistent room temperature

I-Series brooder heater with Smart Sense heating system in a pig facility.

Environmental control integration

Smart Sense® automatic variable rate heat for hog confinement buildings now works with these leading environmental controls:

Smart Sense® manages pig building room temperature automatically

Smart Sense® automatically provides heat at only the rate required to reach a set point, and then maintains that temperature. This technology has been field tested across the upper Midwest with results that reflect significant increases in fuel-cost savings.

Actual Field Test Results for L.B. White Forced Air Heaters and Brooders

L.B. White Guardian Forced Air Heaters with Smart Sense®

Guardian® heaters with Smart Sense® provide an automatic variable-rate control, compared to manual control in today’s standard Guardian® heaters. The Smart Sense® upgrade allows the heater to run longer at lower firing rates and become part of the circulation system. This results in a much more consistent room temperature.

Available Smart Sense® configurations:

  • 25,000 to 100,000 Btu/h
  • 65,000 to 250,000 Btu/h

Ignition types:

  • Spark Ignition
  • Hot Surface Ignition

Ignition Control Enclosure

  • All corners and seams are sealed with silicone
  • Liquid tight / air tight "pass throughs" are used for wiring entrances and exits
  • All terminations have 'flags'


  • CSA

Only L.B. White Guardian® heaters are capable of operating at firing rates as low as 25% of max Btu/h while maintaining acceptable carbon monoxide levels and ignition characteristics.

L.B. White Radiant Brooder Heaters and Smart Sense®

L.B. White Smart Sense® technology provides the ability to set and manage temperatures at pig level, independently of the ambient room temperature. Gain control of the pig occupied zone with Smart Sense® versus 3-stage or hi-lo control panels that are not controlled by precision-based technology.

  • Both standard manual and spark ignition I-17 brooders function with Smart Sense®
  • Fires at 10% of max btu output (17,100 btu/h).
  • Requires sensor mounting kits for existing and new installations
  • Operates with an existing 0-10 vdc control or with the SmartBox® controller

I-17 Brooders with Smart Sense® auto managed heat control

The L.B. White Smart Sense® Sensor is a critical component in our variable-rate heat technology. Our sensors are not restricted by a shield or isolator, and are less sensitive to wire length or gauge. Combined with proprietary control logic, the sensor is always locked into position by a bracket to achieve precise results based on suggested protocols and a desired swine pattern.

More info about Smart Sense® Heating System for pig buildings

Smart Sense® automatic variable rate heat technology for Pig Buildings can be used in multiple pig production phases, including: farrowing, nursery, wean-to-finish, and finishing applications.

For more information on our Guardian® Smart Sense® auto managed pig heaters and High Pressure Radiant Brooder heaters with Smart Sense®:

Call 1-800-345-7200 (toll-free) or 608-733-5691

Three Year Warranty on Guardians in new swine houses.

Unprecedented 3-Year Warranty

L.B. White is now offering a three year warranty on HSI and Spark Ignition Guardian® Forced Air Heaters placed in new swine houses. In order to take advantage of this great offer, please register your heater on our product registration page.

Warning: Cancer and reproductive harm. See


Specifications, features, and more for the Smart Sense® Heating System.


Schematics, setup instructions, and more for the Smart Sense® Heating System.


Step by step how-to videos for the Smart Sense® Heating System.


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