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October 18, 2021

Professional Tool Reviews for Pros


Best Nest Thermostat Reviews | Gen 1 through Google

Nest thermostat beauty
PTR Review
  • Programming 10.0
  • Features 10.0
  • Build Quality 10.0
  • Flexibility 9.0
  • Value 10.0

So the real question is: Are you going to ride the wave of excitement or spin your wheels convincing clients why the coolest thing to happen to thermostats since they were invented isn't really all that big a deal? While the Nest may not be perfect for every installation, it's certainly a candidate for your higher end or more tech-savvy clients who spend their day surrounded by other life-enhancing electronic gadgets. You want to educate yourself about it and gauge the level of interest of your clients so you can be relevant and ready for a potential up-sell opportunity. After all, if you can get your clients to be excited about their new HVAC system—you've accomplished something pretty special.

Overall Score 9.8 (out of 10)

When the Nest Thermostat came out back in 2011, their consumer-targeted campaigns put thermostats on the map. For the first time, people started to look at those white rectangular boxes hanging on their walls, and realize they looked kind of obsolete in a world where touchscreens were being placed on vehicles, inspection cameras, and even refrigerators. I bought into it almost immediately and have been a fan ever since. Having used them all, I can definitely help you pick the best Nest thermostat for your home or office.


The New Look of Thermostats

Why shouldn’t thermostats look as good as an iPhone? Two former Apple execs seemed to grasp this—but beyond just looking cool, the big claim of Nest was the intuitive ease of use it provided—all while saving a little money (more on that later).

nest thermostat smart home

The biggest issue (at least as we saw it) concerned whether or not mechanical companies would embrace this new technology. Would they see it as a potential upsell—or view it as a profit-sucking fad best left alone?

Before you weigh-in, we’ll just say upfront that after interviewing Pros and researching the market, we’d recommend the former approach. Since a large percentage of thermostats sell alongside HVAC unit installations, this could end up being a potentially important device to understand and explain to your company’s clients.

How Does the Nest Thermostat Work?

If the Nest thermostat oversteps anywhere it may be where it claims bold energy savings averaging as much as $173/year. That’s the amount wasted, they claim, by 89% of programmable thermostats that are too complex for most consumers to properly use and program.

In effect, they are instead treated as “set and forget” devices whose features go largely unused. These numbers are certainly up for debate, but the founding principle is undoubtedly true—most people do not adequately program their thermostats. Like VCRs back in the ’80s, these little white boxes are intimidating, and consumers opt to simply ignore a majority of the available features.

Nest thermostat cooling eco

The Simplicity of the Nest Thermostats

The big deal with Nest thermostats, and why your customers may be very attracted to it, is that (unlike that VCR) the Nest virtually programs itself. When used properly, they claim you can save up to 20% on your heating and cooling bill.

But that’s besides the point. It just works.

It Knows When You’ve Been Sleeping…

The Nest thermostat has both light and motion-tracking sensors that scan everything within a 150-degree angle to detect activity in the room. It also has three temperature sensors and a WiFi connection to get weather data from your local area via the Internet.


It Knows When You’re Away…

With these combined abilities the Nest can tell whether you’re home and set a schedule for your HVAC system. It adjusts the temperatures accordingly based on your initial settings and manages “Auto-away” times when it ascertains that the home is unoccupied during parts of the day.

It’s not nearly as intrusive as, say, an Amazon Echo, but it does work. We have an upstairs home theater room where we watch television several nights a week. It has its own 1.5 ton AC unit. When my husband is working and the kids are at school, it sits unused. The Nest simply adjust the temperature up (or down during the winter months) while the room is occupied so the AC doesn’t run all day long for no reason.

I get to set the limits, so I can make sure the room never gets ridiculously hot or cool while unoccupied. At the same time, I save money by not paying for that AC unit to keep a room hot or cold during the day while no one is using it.

Informative Nest LCD Screen

The Nest thermostat displays a minima amount of info on its LCD screen—just what you need to know. This essential information—the temperature setting(s) and room temperature—is available right on the unit itself. It also lights up blue when cooling and red when heating.

In addition, the Nest iOS and Android apps link directly to the device (the new Google Nest uses Google Home). Know you’re coming home early? You can simply call up the app and drop the temperature before you leave the office, airport, restaurant, etc. Want to check in on your schedule or get an energy report? Open up a browser or the app, and you can do that, too.

best nest thermostat reviews

Adding to all of that is the fact that the Nest is becoming so ubiquitous you can pick one up at Amazon—or at Lowe’s, Home Depot, Best Buy, or just about anywhere else electronics are sold. It may not be quite an impulse buy, but for some it’s getting close.

Nest 1st–3rd Generation Learning Thermostats

The Nest Gen 1–Gen 3 Thermostats differ very little from one another. Visually they look very similar except that the 1st-generation Nest thermostat has a seam along the outer ring.

The base plate of the 1st-gen Nest also has only 8 straight-aligned wire connection points instead of the curved 10 on 2nd and 3rd gen units. More than anything, the 2nd and 3rd-gen thermostats benefitted from improvements in technology and manufacturing techniques. They also refined the design a bit more as the product matured.

Google Nest Thermostat E

The slightly smaller Google Nest Thermostat E provided a lower cost-of-entry for those wanting a smarter thermostat. It offered most of the features of the 3rd generation Nest, except for a few things (including only coming in white).

Google Nest Thermostat E

Google used a polycarbonate body for the E model thermostat that has a ceramic-feel. It works with 85 percent of traditional heating and cooling systems (with only 6 wire connectors). This thermostat also lacks Nest’s Farsight feature that lights up to display various information when you’re standing away from the unit. It also only carries a 1-year warranty.

Google Nest Thermostat

In 2020, Google completely redid the Nest Thermostat for the first time since acquiring the company back in 2014. The new model features fewer moving parts. Instead of a rotating outer ring, the newest Google Nest Thermostat uses touch capacitance on the right side of the metal housing. Touching the housing activates a function and sliding your finger up and down controls the value or input.

Google G4CVZ Nest Thermostat

The Google G4CVZ Nest Thermostat feels a bit less intuitive to use than the former generation, however, it also costs nearly $100 less. We bought one for our upstairs home theater room. Our goal was to have it automatically detect whether the room was occupied. It does this flawlessly, letting us set the temperature to higher and lower limits for most of the day.

Are You Missing a Profit Opportunity?

Some of the biggest complaints regarding the Nest thermostat come from professional HVAC technicians and business owners who feel that allowing customers the opportunity to mess with their thermostats is a recipe for disaster. But the bigger point is this: people got excited about thermostats. For the first time in…I don’t know…EVER, people started talking about a thermostat.

I mean, let that sink in a bit.

You have (at least) two kinds of residential clients. First, they may not have heard of the Nest. You get to introduce them to a system that’s as smart as they want it to be. Whether they plan to use an app with it or not, the Nest Thermostat provides an intuitive way for them to manage temperature settings. And it’s impressive.

The second kind of client is the one who knows about Nest and will be tremendously unimpressed by that plain white box you spec’d with their new HVAC system. They may even ask about it. Give them the option to upgrade to a smart thermostat. If they were born after 1970 this is going to be something that will appeal to them—and your knowledge of the product might just set your bid apart from the competition.

Additional Considerations

Now, there are potential issues with the Nest thermostat that could be of some concern. For one, the Gen 3 model costs as much as $249. That’s a lot of money for a thermostat, so you may want to offer it as an upgrade as opposed to rolling it into the proposal (so that you don’t come in at a higher price than your competition). Fortunately, you also have options of the Nest Thermostat E or the newer Google Nest.

Nest also only allows single wires for each terminal point, relying on internal sensing to properly jump connections as needed. This can present problems for certain installations and may turn what would be a familiar and simple install with a known thermostat into a more complex endeavor.

Nest thermostat base options

Potential Issues

Another potential issue with the Nest is that, as a thermostat, the Nest presents additional considerations for warranty support since it’s a rather expensive product. You will need a plan to either have some spares around or be prepared to temporarily substitute a standard thermostat for your clients should the Nest require out-of-warranty service. The Nest thermostat has a two-year warranty (from date of purchase) on the 2nd generation models and a five-year warranty on the 1st generation models.

2nd Stage Heating

For those up north, the 2nd generation Nest thermostat doesn’t currently support using your auxiliary (2nd stage) heat source as emergency heat. Instead, Nest engages the 2nd stage heating when it’s needed to keep your home warm. You can manually turn on emergency heat using the Nest controls by setting a temperature threshold.

Lastly, on older systems where there is no path back to Common (the ‘C’ wire), the Nest may encounter issues keeping the internal lithium-ion battery charged. This has been addressed at length in documentation found online, but the bottom line is that you may need to do some finagling in order for it to function correctly.

Nest Thermostat Features

  • Schedule: Manual or automatic
  • Screen: 320×240 1.75″ LCD
  • Sensors: Temperature, humidity, activity, and light
  • Battery: 3.7V Li-ion, 2.1 Wh (568 mAh)
  • Enclosure: Stainless steel
  • WiFi: 802.11/b/g/n
  • Dimensions: 3.2 x 3.2 x 1.26 in.
  • Includes: Trim kit, Screws, Screwdriver
  • Warranty: 2-year limited

Do you install Nest thermostats on your jobs? Leave us a comment below with your thoughts.

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Aaron Gatzke

You haven’t talked about the security and privacy concerns with Nest.
Google owns it and they scrape all your data into their databases. They make money from your information while you paid a hefty price for a piece of equipment…

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