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  • Easy to use and install 2 wire thermostat
  • TRIAC switching for accurate temperature control of +/-0.5 degrees Fahrenheit
  • Silent operation - no clicking noise
  • Compatible with electric baseboards (120-240V), convectors and radiant ceilings
  • This thermostat is a line voltage control (120-240 Volts). Do not install it if you are not completely familiar with house wiring.
  • The RLV3120 thermostat CANNOT be used with a resistive load under 0.83, a resistive load over 8.3 a system driven by a contactor or a relay (inductive load), a fan-forced heating system (e.g. : fan-forced convector) or a central heating system.

Hassle-Free Comfort for Electric Heat

The Honeywell RLV3120A digital thermostat is perfect for controlling your electric baseboards, convectors, or radiant ceilings. This easy-to-use thermostat features a user-friendly panel that lets you adjust your temperature quickly and conveniently.

Simple and Convenient

There’s no complicated programming. Simply set your desired temperature and enjoy comfortable warmth.

Quiet Operation

Unlike some thermostats, the RLV3120A operates silently so you won't hear any distracting clicks or noises.

Efficient Heating

This triac thermostat ensures smooth and efficient operation of your electric heating system.

  • Single-Stage Heating and Cooling: No
  • Multi-Stage Heating and Cooling: No
  • Heating Only: Yes
  • Cooling Only: No
  • Compatible with Warm Air Furnace: No
  • Compatible with Central Air Conditioning: No
  • Compatible with Heat Pump (No Aux./EM): No
  • Compatible with Heat Pump (With Aux./EM): No
  • Compatible with Hot Water: No
  • Compatible with Steam or Gravity: No
  • Use with Floor/Wall Furnace 24V or 750mV: No
  • Use with Volt Gas Fireplace 24V or 750mV: No
  • Use with Pellet Stove for mV Thermostats: No
  • Use with Electric Baseboard 120V-240V: Yes
How do I reset my Honeywell Thermostat?

There isn't a universal reset for all Honeywell Non-Programmable Thermostats. The process will vary depending on the specific thermostat. However, here are the two most common methods:

Method 1: Power Cycle Reset

  • Turn off the power: This can be done by flipping the breaker that controls your HVAC system, or by removing the batteries from the thermostat (if battery-powered).
  • Hold the reset button (if present): Some non-programmable Honeywell Thermostats have a dedicated reset button, usually located near the display or behind a cover panel. If your model has one, hold it down for about 5-10 seconds while the power is off.
  • Restore power: Turn the breaker back on or reinsert the batteries.

Method 2: Menu Reset (for some models)

  • Check your thermostat for a "Menu" button. Not all Honeywell Non-Programmable Thermostats will have one.
  • If present, press and hold the "Menu" button. While holding it, navigate through the options (if any) until you find a "Reset" function. This might involve pressing arrow buttons.
  • Select "Reset" and confirm the prompt (if applicable).
Product Details
Product Specs
Product Manuals
Honeywell Electric Baseboard Heating Digital Thermostat - RLV3120 Video

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RLV3120A1005/H customer reviews

Overall Rating

33 Reviews
33 customers recommend this product
Honeywell Electric Baseboard Heating Digital Thermostat - RLV3120 Reviews
Robert Russell
June 14, 2019
Verified Purchase

Installed in a few minutes and works great.

Jacqueline Clark
February 26, 2019
Verified Purchase
Easy installation and immediate difference

We switched our ceiling cable heat dial thermostats to these and the installation was so easy. We have noticed an almost immediate difference in comfort and control over the ceiling heat. We plan on switching all out and ordering more.

Onno Leyds
September 25, 2018
Verified Purchase
Satisfied Customer

Clear directions and easy installation. Non-programmable thermostat for areas that need only to be protected against. freeze-ups. Expecting the same high quality that Honeywell has always given the customer.

March 14, 2018
Verified Purchase

Package arrived at residence on time. Thank you. The thermostat is perfect for my place.

Burk Kunkel
February 13, 2018
Verified Purchase
thermostats for ceiling heating

Easy to install and is very good at keeping the right temp.

mary wolf
January 25, 2018
Verified Purchase

The quality is very good.

Jerry Bickel
January 3, 2018
Verified Purchase
Love this thermostat

This was the easiest fastest electrical installation I have ever made. It adjusts to changing weather conditions rapidly, displays accurately, will probably save me money.

Dennis Borman
October 16, 2017
Verified Purchase
Great thermostat

Good price easy to install

Ron Florczak
October 13, 2017
Verified Purchase

Excellent Thermostat and very easy to install. I may be buying more so the coupon will help.

John Burton
May 30, 2017
Verified Purchase
Easy install

Easy to install, works great.

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