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

It works well and was an easy fix to replace an older model 220v line thermostat
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!

Works with fan-forced electric heat
My sister and I moved into a new place a few months ago, and each room has a thermostat and fan-forced electric heaters in the wall. All of the thermostats are broken, so that, no matter what temperature you set them to, they turn the heat on full-blast and never turn it off. The only thermostat/heater on the first floor didn’t even work at all. No heat! I would like to have programmable thermostats in each room, but it isn’t realistic. Too expensive. The Honeywell thermostat is a good compromise for replacing old thermostats that don’t work properly anymore. Once I get another one installed, it should lower our electric bill, because right now we can’t always manually turn the heat off when the temperature gets high enough, so it gets too hot and we waste energy and money.Anyway, I wasn’t sure if this thermostat would fix the problems we were having–I thought it might work as poorly as our old units. But it’s great! We used it to replace the totally broken thermostat, and now the heat works again (we hadn’t been sure whether it was the thermostat or the heater causing problems). The new thermostat turns off when it gets within a few degrees of the set temperature.But, for moderate DIYers like myself…if you don’t have the equipment (possibly a multimeter/circuit tester, electrical tape, twist-on wire connectors, whatever) and the knowledge to install the thermostat, do not mess with this project on your own, especially if you’re troubleshooting a heater that isn’t working. This thermostat uses relatively high voltage (240V in our case), and you could injure yourself or possibly die if you screw up. It isn’t especially difficult to install, but you have to know what you’re doing and what to look out for. We had a knowledgeable relative help (but I might do the next one on my own since I’ve seen it done and this time I won’t have to troubleshoot the wiring).The wiring schematic in our instruction manual was printed as a mirror image of the actual wiring, so make sure you check the labels imprinted on the back of the thermostat, and match those to the labels on the schematic.

Reliable and accurate, contains no mercury
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.

It works for my 240V 5000W shop heater

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