Best Line Voltage Thermostats of 2025

Corey Phillips Avatar
Corey Phillips
Last Updated: 1 Feb 2025

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Line Voltage Thermostats are devices used to regulate and control the temperature in a variety of settings. They are often used in residential and commercial buildings to maintain a comfortable temperature and provide energy efficiency. These thermostats are designed to work with high voltage heating systems, such as baseboard heaters and radiant heating systems. They are easy to install and operate, and offer precise temperature control. With a range of features and options available, Line Voltage Thermostats are an excellent choice for those looking for an effective and reliable way to regulate temperature in their home or workplace.

At a Glance: Our Top Picks

Cadet 08301 Heating Dial Thermostat, 120 Volts Cover #TOP 1
Cadet 08301 Heating Dial Thermostat, 120 Volts
ftb score rating icon 9.8
Robertshaw 801 Line Voltage Heat Thermostat Cover #TOP 2
Robertshaw 801 Line Voltage Heat Thermostat
ftb score rating icon 9.7
King ESP230-R Programmable Thermostat with Display Cover #TOP 3
King ESP230-R Programmable Thermostat with Display
ftb score rating icon 9.5

Top 3 Line Voltage Thermostats

#TOP 1

Cadet 08301 Heating Dial Thermostat, 120 Volts

Cadet
T522-W
Cadet 08301 Heating Dial Thermostat, 120 Volts Cover
Cadet 08301 Heating Dial Double Pole Line Voltage Thermostat, 120 Volts

The Cadet 08301 Thermostat features a clean white design, making it a stylish addition to any home. Operating at 120 volts, it ensures efficient heating control, providing you with the comfort you need during colder months. The display measures 4.5 inches tall and 3.75 inches wide, allowing you to easily read the settings at a glance. Although it does not come with built-in WiFi, its simplicity makes it user-friendly, allowing you to manage your heating without complications.

What We Like
Efficient heating control
Easy-to-read display
Stylish white design
User-friendly operation
#TOP 2

Robertshaw 801 Line Voltage Heat Thermostat

Robertshaw
White
Robertshaw 801 Line Voltage Heat Thermostat Cover
ROBERTSHAW 801 Line Voltage Thermostat with Single-Pole Single-Throw Heat Only by Robertshaw

The Robertshaw 801 Thermostat is a line voltage thermostat designed for heating systems. Its single-pole single-throw configuration ensures that it effectively controls the heating, providing you with a reliable way to maintain your desired temperature. Manufactured in the United States, this thermostat combines quality with functionality, making it a great choice for your heating needs. With its straightforward design, you can easily install it and enjoy a more comfortable home environment.

What We Like
Reliable heating control
Easy installation
Quality American manufacturing
Simple design
#TOP 3

King ESP230-R Programmable Thermostat with Display

King
ESP230-R
White
240 Volt
King ESP230-R Programmable Thermostat with Display Cover
King ESP230-R Electronic Line-Voltage Programmable Thermostat, White

The King ESP230-R Thermostat offers a range of features designed for user convenience. Its programmable function allows you to set your desired temperature easily, ensuring comfort when you need it most. The large digital display with backlight makes it simple to read the temperature, even in low light conditions. With just a two-button control system, adjusting the temperature becomes straightforward. Additionally, the memory backup feature ensures that your settings are retained, even during a power outage, providing peace of mind.

What We Like
Easy programming options
Large backlit display
Simple temperature control
Memory backup feature
UL Listed for safety
Buying Guide Image
Editor's Notes

During our line voltage thermostat research, we found 13 line voltage thermostat products and shortlisted 3 quality products. We collected and analyzed 6,264 customer reviews through our big data system to write the line voltage thermostats list. We found that most customers choose line voltage thermostats with an average price of £106.46.

The line voltage thermostats are available for purchase. We have researched hundreds of brands and picked the top brands of line voltage thermostats, including Cadet, Robertshaw, King. The seller of top 1 product has received honest feedback from 5 consumers with an average rating of 3.8.

Written by
Corey Phillips Avatar

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.