When selecting the perfect thermostat for your needs, you’ll often encounter terms like “line voltage temperature differential” or “hysteresis.” These concepts are crucial in determining how effectively a thermostat regulates the environment of your space. Let’s break down what these terms mean and why they are important for your thermostat’s performance.

What is Temperature Differential?

Temperature differential, or hysteresis, refers to the range within which a thermostat operates before it triggers a change. It’s the gap between the point at which the thermostat activates (contacts close) and the point at which it deactivates (contacts open).

Line Voltage Thermostat Differential

For example, consider a line voltage thermostat that controls a fan: if the thermostat is set to turn the fan on at 70°F and off at 65°F, the temperature differential is 5°F. This means the thermostat allows a 5-degree fluctuation in temperature before reacting, ensuring that the fan isn’t constantly turning on and off, which could lead to wear and inefficiency.

If you’re unsure about what kind of temperature differential is best for your application or if you have specific requirements, don’t hesitate to contact us. Our experts are here to provide guidance and ensure that you get a thermostat that perfectly fits your needs.

Why Is Understanding Differential Important?

Choosing a thermostat with the right temperature differential is key to maintaining a stable environment and energy efficiency. A smaller differential might cause the thermostat to cycle too frequently, which can be annoying and may shorten the equipment’s lifespan. On the other hand, a larger differential might result in noticeable temperature swings before the thermostat reacts, which could affect comfort or the effectiveness of temperature-sensitive processes.

 Our Thermostat Options and Customizations

Portable PreWired ThermostatAt K-Kontrol, we offer a variety of thermostats to suit different needs:

K-Kontrol Line Voltage Thermostats: These come with a fixed temperature differential of 2°F, ideal for applications requiring tight temperature control.
Tempro Line Voltage Thermostats: These allow for an adjustable differential up to 12°F, giving you more flexibility to tailor thermostat behavior to your specific needs.
Electronic Temperature Controller: This device offers an adjustable differential up to 30°F, perfect for more variable environments where a broader temperature range is preferable.

Customize to Your Specifications

We understand that every application is unique, and standard specifications may not always meet your needs. That’s why we offer customization options to match your exact requirements. Whether you need a specific temperature differential or have other particular specifications in mind, our team is ready to help tailor our products to your situation.

Understanding and choosing the right temperature differential is essential for efficient and effective temperature control. With the right thermostat from our range, you can ensure optimal performance and longevity for your heating and cooling systems.

Talk to a product specialist today!


Original equipment manufacturers & agricultural communities worldwide use temperature controls designed & manufactured by K-Kontrols. Our temperature controls are great for barns, greenhouses, livestock buildings, garages, vacation homes, construction sites & more.

Custom Options

Variety of custom options available such as temperature ranges, sensing element lengths & private branding.


K-Kontrols meet NEMA 4X, UL, cUL & NEC 457 Ag-ratings.

High Quality

We take pride in quality control & reliable operation of our components. Every switch is individually tested before it leaves the plant.

Made in the U.S.A.

Products are designed, manufactured, tested & shipped from our facilities in Eau Claire, WI to clients across the globe.