LUXLTX9600TS 7 Day Digital Programmable Thermostat for Home Use; 2 Heat, 1 Cool

I had a previous Lux digital thermostat I replaced with this model just due to the age of the previous unit. My old thermostat was still functioning fine, but I do not necessarily trust modern digital electronics past ten years of age. This thermostat was cheap, and I would rather pay a little money for a new thermostat than experience a thermostat failure during winter. Anyway, my thermostat was super easy to install. All of the thermostat wires were color coded, and I connected each wire to the corresponding terminal on the new thermostat's mounting plate. Since my previous thermostat was a Lux, I was able to use the existing mounting holes for my base plate as those lined up with the new plate and simply attach the wires to matching terminals. That made my install even easier.I just started using this thermostat a couple weeks ago. It is keeping my house a consistent temperature when compared to another thermometer and my previous thermostat (also cycles at appropriate swing settings). The thermostat is working exactly how it should. I opted for Lux thermostats for a few reasons. I do not have a C wire and need a thermostat that can run on batteries alone. The unit is cheaper than comparable models. The thermostat has a lot of nice features for the price (energy use, filter change, lock out code, temperature set back-which is a temporary hold before automatically resuming program). However, I really like the fact I can adjust the swing temperature on this unit. For those who do not know what swing temperature is, it is the amount of temperature variance the thermostat will allow from the set temperature before turning the HVAC system on and off. A properly adjusted swing temperature allows the HVAC system to run more efficiently (longer run times which are also easier on HVAC system) balanced with occupancy comfort (HVAC cycles more often). I previously had a Honeywell thermostat that short cycled my HVAC system, and I will never use that brand again for that reason.I am running this thermostat on AA batteries as I do not have a C wire. I ran my other thermostat that way for years, and I would just change the batteries right before heating season. I never had to replace them more than once a year and never saw a low battery indicator on my previous thermostat. I do wish it was easier to change the batteries out on this model. I did end up doing what another reviewer mentioned. I opened my thermostat to expose the battery compartment several times before installing it. It did make it a little easier to take apart after it was mounted.There are a couple negatives. Some people mentioned the thermostat is inaccurate when powered by a C wire. I cannot comment on that as mine is soley run on AA batteries. The recovery feature was designed for a stupid California law. The hour maximum recovery time does not allow enough time for my hydronic heat system to adjust reach my set temperature during a Wisconsin winter. I program around that by setting my system to start earlier (again thanks to a dumb law). I will say that the display is kind of hard to read without the backlight. I also wish the unit displayed the current room temperature to tenths of a degree. The thermostat also seems a little slow to read temperature. It is just an observation when I first put batteries in it that it took a minute or two to read the exact room temperature despite being out of its case in my house before I installed batteries. I will add that my heating and cooling system slowly brings my house to the correct temperature, and that has not been an issue with its operation.I will update this review if anything changes.Edit: The temperature has been in the upper teens to lower twenties the past week. I have been playing with the swing setting on my thermostat as I recently installed new triple pane windows. My previous swing setting of +/- 1 was not working for me after my house upgrade. I lowered my swing to .75. I noticed my energy use dropped 45 minutes from previous day which had even warmer temperatures. I am now starting to experiment with other settings to see if they yield greater efficiency gains. I am also toiling with skipping my 6 degree thermostat reduction at night. By reducing the swing setting, I have learned that it takes my boiler more energy to recoupe losses than to maintain the current temperature (recovery time is around three hours of constant boiler operation). I am currently making a chart based off of run time settings based from the run time settings on this thermostat achieve the optimum efficiency. The energy use feature is also something that is great to have. I suggest people actually adjust their thermostats and check the results.

Have had this installed since May '20 so this unit has only been in used for cooling so far. This replaces a 17 year old Honeywell that while working was not providing accurate temp control and would heat up skewing the thermostat. We didn't desire wifi capabilities as we work from home so remote usage isn't required and the simplicity is desired.This unit is easy to read and programming was simple. The access to swing values and allowing calibration adjustment has made this thermostat very nice to adjust how we want to cool the house. I would anticipate the winter season to be equally good. Interpret that also that having this ability to fine tune the cycles will yield efficiency with utility costs. The old Honeywell was acceptable but it did not run the A/C very efficiently.The back lighting is easily read and with good contrast. I wish that in the dark that this thermostat had a visual indicator to determine if the system was on or off. The old Honeywell was easy to see before going to bed if we had the system on or off by the two lights. (That's an old school practice that we shut the system off.)This was easy to DIY. This unit fit the same holes that mounted the Honeywell thermostat so the install was made even easier. Re-striped the wires and connected them. As mentioned in another review I would suggest opening and closing the unit a few times to wear in the plastic tabs a bit. This will make access to the batteries a bit easier. I wedged in an old credit card to pry the halves apart and this seemed to work really well without damaging the plastic pieces. After about 10-15 of those it comes apart smoothly.Installed the trim plate since the older unit was larger and we no longer had the paint to paint that section of the wall.This was a good purchase at an economical price and we're pleased with the functionality overall.

I picked this unit based on its ability to adjust the swing, but ironically I never needed to change it. (I had heard stories of equipment cycling too often and not being able to adjust it). In fact, I had the opposite problem; long cycle times and waiting much too long to call for heat.It seems to not call for heat very often when connected to furnace power (C wire). After being cold most of the evening after installing it, I decided to disconnect the C wire based on some other reviews. It seems to work normally on battery power, and I left it that way for a week or so. Then I tried hooking up the C wire again, and again it seems like it didn't want to call up for heat even when the temp was lower than the set point. I decided to just run on battery rather than trying to continue testing. My theory is that something on the board is creating heat when it's using the 24 VAC power from the furnace vs the 3 VDC from the battery. Probably wouldn't make a difference in an A/C setting, but for heat in a mounting location without a lot of air flow it seems to matter.Otherwise it's a really well thought out unit and is excellent. Easy to program, easy to use, nice big LCD displays, attractive backlight when you tough the screen in the dark, etc. Outstanding unit if using battery power only.***Update after 9 months of use. This unit has been rock solid, no problems, easy to operate, etc. Very nice thermostat.

Received the LUX TX9600TS Thermostat from Amazon supplier. Installed very easily; clear instruction manual. bought this one to replace an old LUX Thermostat we had for 10 years. Recommend LUX product for reliability, ease of installation and saving money.

This product was delivered to a commercial address on a Sunday, obviously closed. To make it worse, was left leaning against the door in view of passing traffic even though we have a post / parcel box.????And it rained!!Thankfully the unit survived - great product.

Very easy to install, programmable and accurate.

I like it because I can set the deadband.

simple instructions on the installation process and easy programming, although you have to do each day seperately which is tedious and time consuming unless you have certain days when you are not at home and want it at a different temp.