King ESP230-R Electronic Line-Voltage Programmable Thermostat, White Review

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This is the third line voltage digital thermostat we have had in one zone, It failed after a year and a half. It failed because of a bad relay.

The zone with three 4 foot baseboards is well under the rated wattage rating on the thermostat.

I think in general this was a good thermostat, seemed to be reasonably accurate, easy to program (with the instructions)and fairly quiet in operation. If you have one heater or a minimal load I expect this would work fine and would last much longer although other people have noted premature failures as well.

For higher wattage installations it just seems that the 30 amp Omron relay in this thing is not up to the task of dealing with the number of cycles at high wattage. Mine didnt show any thermal damage but upon taking it apart it seems like this really is a lighter duty product than its specs make it out to be. If I were to use one again I would consider using it to control a master relay to reduce the load.

The last thing: all of these electronic line voltage thermostats have no failsafe if something goes wrong with them. That means the slightest malfunction could leave you with no heat and frozen pipes. I would never consider using one of these for the primary heat in a location (cabin, summer home, etc)that is left unattended for prolonged periods. The fact remains in 30 years I have never seen a wall mount bimetallic thermostat fail. I have had 3 electronic ones fail in 4 years... In my case I replaced this with a standard bimetallic wall thermostat like the house was originally built with and called it a day.

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We put one of these in each of our bedrooms, as we have baseboard heaters (also replaced with King ceramic baseboard heaters). This thermostat works great! It is keeping our bedrooms at the proper temperatures we programmed, and nice to have something so updated as to have digital instead of an old turn-knob thermostat. The backlight is great for a glow light in a kid's room at night too! You can turn off the backlight, as well as the heat itself, which will be great for summertime when we won't need them on.

We are very happy with this thermostat, highly recommend them for anyone with baseboard heaters. Also highly recommend the ceramic baseboard heaters they are much more efficient, and a better and more stable heat.

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Shipping was super fast. Very flexible programming capability, but the initial programming can be a little tedious. Allows temporary temp changes without messing up the settings. Nice to be able to turn the backlight on/off. There's also a switch available to turn off the heat without messing up the settings.

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I had to look for replacement thermostats for my LUX units because they could not handle the amperage my heating system uses. This king thermostat can handle up to 22 amps. It has an on/off switch and has a back light. SO far I really like these units but it is not winter yet so only time will tell if they are a great thermostat but I have no reason to be concerned.

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I replaced a Honeywell thermostat that was not the programmable type. The installation on this one was easy to follow. Programming gives you a lot of options but this also adds some to the complexity of programming. Once I figured it out, it wasn't too bad.