EmersonWhite-Rodgers 1E78-140 Thermostat Wall Dig Heat

Works perfectly so far. That's all I need from it but it looks quite nice too.

I have 22FB Sport Airstream trailer that came with functional thermostat, but was very hard to read the temperature even with good eye sight. Tried to replace with round Honeywell Thermostat. Purchased three units and none of them worked. I read the reviews about the Emerson Thermostat and how easy it was to install. Purchased the heat-only Emerson Thermostat from Amazon. The installation, including removal of the old thermostat, took only 10 minutes. Turned it on and it worked flawlessly. If you only have a gas furnace heater in your trailer, and you have a hard time reading the temperature on the stock unit that comes with the trailer, I highly recommend this Emerson model. It is inexpensive, quick and easy to install. most importantly, it works perfectly.

Excellent product

This product changed my mind about digital thermostats. I always liked bimetal spring based thermostats before trying this one. After all, those are passive, no batteries required, and they work on physics principles. What could go wrong?The answer is plenty! The one in my RV had sticky contacts. What I mean is the electrical contacts seemed to stick together. That resulted in a terrible problem, which the digital thermostat has solved completely. The problem was the temperature would have to drop way below the setpoint to get the furnace to turn on. Then, when on, the temperature would have to rise way above the setpoint before the furnace would turn off. This was awful. In a small RV there was no consistency in the temperature at all. It would swing widely above and below the desired setting. Plus the temperature control only had two options, ie warmer or cooler -- no actual temperature selection.This digital thermostat is absolutely one of the best upgrades I have ever done to my RV. I can select whatever temperature I want and the thermostat will control the furnace precisely. The variance is only plus or minus about 1 degree. I am thrilled with this precise control. This is saving propane, which saves me money. Plus, I love the backlight. Now I can see the temperature and the setpoint even in the middle of the night.This digital thermostat runs on two AAA batteries. I put Energizer Ultimate Lithiums in it. Those should last 2-5 years before needing replacement, they never corrode, and they are imperviousness to temperature variations.This inexpensive digital thermostat is an excellent upgrade for an RV and it has changed my opinion of digital thermostats in general. I strongly recommend this, especially if you have an old analogue thermostat in your RV.

My electrician installed this model with my home rewiring over 8 years ago. It has never failed, I've only replaced the batteries twice. When one of the batteries leaked, I had to buy a new one. I went looking for the exact same model. I found it here on Amazon.ca. (Thank God Emerson kept this model in production after the merge with White Rodgers.)I love that it shows the temperature in Farenheit. I can see it so easily, thanks to the backlight function (which you have to turn on - thank you to the Amazon customers who gave simple instructions on how to do that!), the display uses large figures, very nice, so easy to install I did it myself, and accurate! I love the accuracy! When the first one had been installed, I had been using a dial thermostat for over 40 years. I was surprised any thermostat could be so accurate. Is it any wonder I went in search of the exact same model?