Honeywell Home CT410B Manual 4 Wire Premium Baseboard/Line Volt Thermostat CT410B1017

I bought this Honeywell Home CT410B Manual 4 Wire Premium Baseboard/Line Volt Thermostat CT410B1017 to replace a Honeywell Model Number T498B -- Electric Heat Thermostat. The old thermostat was in the apartment I've lived in for possibly as long as the building was built, 52 years ago. In any case it wasn't working. I thought that the problem may have been with the actual electric baseboard heating unit itself since an electrician told me a few years prior that the baseboard units can develop more electrical resistance over time. I dreaded having to submit a repair request to my landlord because I have so much stuff in my living room that would have had to be moved in order to access the baseboard unit which is about 9 feet in length.The older model is apparently no longer in production by the manufacturer. There are a few new old stock units for sale here by private sellers, but the price is upwards of $70 to $80.So I took a chance and ordered this newer model. The unit arrived the next day, and not a day too soon in January 2024 just as the Arctic cold was dropping the temperatures well below zero degrees Fahrenheit here in the Midwest.The job to install the new unit was straightforward and the instructions were very clear. A word to the novice: if you at all uncertain of how to remove and replace a line voltage thermostat, by all means, do not chance it: call a professional. However, if you know something about basic home electrical wiring and are absolutely certain that you can safely remove and replace a line voltage thermostat, then carefully read the instructions twice to be certain you understand what the steps are. The first and most important step is to cut the power to the unit at the electrical service breaker. Be absolutely certain you have switched the breaker to the "Off" position. If there is more than one baseboard heating unit in your house or apartment, as a precaution, switch off ALL 240V breakers for the heaters.The wires are very stiff and require a bit of careful bending to get them to fit back into the circuit box on the wall.After I installed the new unit, I switched the breaker to the "On" position and turned the temperature adjustment know slowly clockwise until I heard a little click, indicating the thermostat was sending power to the heating unit. In a matter of a few minutes, heat was literally pouring out of the baseboard unit!If you have an electric baseboard heater, this Honeywell Home thermostat is the way to go. Don't bother with any "digital" or "programmable" line voltage thermostats. They are not as reliable as this basic model. To set the temperature, and be sure you are getting the temperature you want, just put an accurate thermometer on the wall next to the thermostat and adjust the setting as needed. Follow all the instructions carefully, and stay warm!

My old thermostat wore out and my bedroom was either freezing cold or blazing hot! The heat there is in the ceiling, not a baseboard heater, so I wasn't sure about this thermostat. But before I installed it, I compared the specs imprinted on the thermostat (see photo) to my old thermostat and they were exactly the same. The old thermostat was connected with only 2 wires (both black on the same side), so that's how I connected this new one. I just cut short and capped off the 2 unused red wires. It's working and my room temperature is now under my control again! Easy to install if you know how to turn power off for the heater's circuit, and know how to twist on a wire splice cap.

We used this to run a hydronic 120v heater fan in the garage. Sometimes simple solutions are best.

I used this with a boxed heater with a fan running 250 volts and 22 amps. It worked fine with my first green house. The second greenhouse I used the same heater and similar thermostat but the wire gauge was lower (12 gauge). This caused heat build up in the thermostat and it would continuously cut itself off because of the heat generated with the wires that were too small for the amperage. It would cool off and cut back on. Best to use 8 gauge wire for a 22 amp heater so this does not happen to you.

Replaced Original Easily.Great Quality!Easy Operation!

Why did you pick this product vs others?:Works as should looks nice

Some thermostats are designed for a low voltage control circuit. But if you have heaters that operate on line voltage (110v or 220v), you must have a thermostat designed for that purpose, like this Honeywell. Anyone who knows electricity will find these simple to install. Comes with 4 wires for 220v use, but can be installed to use only 2 of them, as marked. Inexpensive and easy to use. But if you want a programmable thermostat for saving money on your electric bill, Honeywell makes them also. And always get the right unit for the right voltage.

My husband installed this for our electric baseboard. It was fairly easy to install and works, but the temp is inaccurate. We keep it set at 75-80 degrees and that keeps the room about 65-70 degrees.