Bismuth 2

The Google Nest Learning Thermostat (4th Gen) paired with the Nest Temperature Sensor (2nd Gen) has been an excellent upgrade for our home. Installation was straightforward, and the setup through the Google Home app was smooth and intuitive. The thermostat looks sleek and modern, and the display is clear and easy to read. The learning feature works well—after a short adjustment period, it began automatically optimizing our heating and cooling schedule without constant manual input. The temperature sensor is a great addition. It allows us to prioritize comfort in the rooms we actually use, rather than relying solely on the thermostat’s location. This has made a noticeable difference in maintaining consistent temperatures, especially during the night. Energy efficiency is another strong point. We’ve already seen more balanced heating cycles and less unnecessary runtime, which should translate into savings over time. Overall, this is a smart, well-designed product that delivers on both comfort and convenience. Highly recommended for anyone looking to modernize their home climate control system.

Three reasons I like this product: 1) C-Wire: I don't have a c-wire available. There are VERY few modern smart thermostats that claim to work without one. I first tried one of the others, the Sensi. It did not have any apparent easy way to determine in advance if it would work without a c-wire. It didn't work for me. The lack of an easy advance tool cost both of us time and money; a lose/lose. A wrote a well-deserved 1 star review of that product. This product does have a very easy tool to determine in advance if it will work without a c-wire. It took me literally 10 seconds to use that tool & be confident this would work. And, it does, in fact, work great without a c-wire. 2) Functionality: It comes with a remote temp sensor which is a new thing for me and a great idea. I put mine in the bedroom. It was crazy-easy to set up and I really like the simple interface letting you choose when & how you want the thermostat to use it. It says you can add more of these if you want. Programming a daily schedule is incredibly easy as is making quick adjustments to that schedule. It has all sorts of other features such as auto-adjusting based on who is home, learning your patterns & making further auto adjustments, accepting voice commands, and so on. I do not want to use any of those things. They made it very easy for me to just say "no thanks" to all of those things and still have a nice seamless experience. 3) Appearance: I hesitated to buy this product because it is round while my previous thermostat was rectangular and the wall is messed up everywhere behind the area of the old thermostat. Yes, I can patch a wall and paint it - but, no, I don't really want to if I can avoid it. It was a pleasant surprise to me that this thermostat came with an optional large faceplate that is made to cover up the bad wall in exactly my situation. I used it and it is great. Privacy is a concern but that seems to come with just about everything these days so - I don't know - just get over it? I recommend this.

Easy to install, nice looking and programmable. Supplied already with the wall plate (white plate + black thermostat) Even able to operate the central dehumidifiers ( see the product manual) I would recommend this product.

Better than that old T we got with the house. Super easy to use and the multiple sensor function is great feature. Has helped with efficiency in the house. Wifi feature works great. Display is super easy to use and you can use your phone. Noise level is none.

Yikes what a neat device! It does learn from your daily movements to adjust either heating or cooling regime when you leave the house. It compensates for outside temps and figures out the time required to meet your set temps when you return to the home. There are many settings for fan timings ( to circulate stall air). To use the devices many features one should use the Google home app which requires WiFi. Should this be a ‘no -no’ it can be easily programmed directed by using the thermostat. Our one negative comment is the price. A Generation 3 unit costs less but lacks conservation features of this unit. Time will tell if the units features will save us energy costs. Google emphasized it will save.