3 Best Smart Thermostats for Energy Saving Verified by Experts

When choosing a smart thermostat to cut energy costs, you want one that’s reliable, easy to use, and packed with smart features. Experts highlight models like the Sensi Touch 2, Emerson 1F85U-22PR, and Honeywell Wi-Fi 9000—all equipped with intuitive touchscreens, customizable schedules, and zone control. These thermostats seamlessly connect to platforms like Alexa or Google Assistant, letting you adjust settings from anywhere. Curious about which one fits your home best and how they actually save energy? Keep going.

Sensi Touch 2 Smart Thermostat with Touchscreen Color Display

Sensi Touch 2 Smart Thermostat with Touchscreen Color Display, 100 Years of Expertise, Programmable, Wi-Fi, Data Privacy, Easy DIY, Works with Alexa,...
  • WORKS WITH ROOM SENSORS: Compatible with Sensi Room Sensors to balance temperatures throughout your home (sold separately)
  • PRIVACY PROTECTION: Sensi won’t sell your personal information to third parties
  • SAVE ABOUT 23% ON HVAC ENERGY: The ENERGY STAR-certified Sensi Touch 2 smart thermostat can help you save energy with features like flexible scheduling, remote...

Looking to upgrade your home’s heater and air conditioner? The Sensi Touch 2 Smart Thermostat is a good choice. It has a colorful touchscreen that makes it easy to change settings. You can set a schedule for your heat and cools and control it from anywhere using Wi-Fi. It works with Alexa and Sensi Room Sensors, so you can keep different rooms at the right temperature and save energy. It also has an ENERGY STAR label, which means it uses less energy and can help lower your bills.

Installing the Sensi Touch 2 is simple if you do it yourself. The app guides you step by step. Keep in mind, your home needs a C-wire to install it properly. Some features, like the Room Sensors, cost extra. Overall, it’s a smart and simple way to keep your home comfortable and save money.

Who should get it: Householders who want an easy-to-use thermostat that saves energy and offers remote control.

Pros:

  • Bright, colorful screen makes it simple to change settings.
  • Works with Alexa and Room Sensors for personalized temperature control.
  • Saves energy and reduces bills with ENERGY STAR.

Cons:

  • Needs a C-wire for installation, which some homes don’t have.
  • Installing it yourself can be tricky if you’re not used to doing wiring.
  • The sensors are sold separately, so extra cost is involved for full features.

Emerson 1F85U-22PR Programmable Thermostat

Best Offer
Emerson 1F85U-22PR Programmable Thermostat
  • Big, clear display - easily read in low lighting
  • Selectable programming - 7 day / 5-1-1 / off
  • Easy installation - built in level indicator, pluggable terminals and streamlined configuration menu

The Emerson 1F85U-22PR Programmable Thermostat is a good choice if you want an easy-to-use device that works well. It has a big 5-inch LCD screen. This large display makes it simple to read the temperature, even in low light. The thermostat is mounted on the wall and has features like auto changeover, a filter indicator, and keypad lock. These help you control your heating and cooling without making it complicated.

It works with many HVAC systems and does not need a C wire for power. Installation is quick and simple. The built-in level indicator helps you mount it straight. The menu options are clear, so you can set your schedule easily. Overall, this thermostat combines easy use with good control for better energy saving.

Best For: Homeowners who want an easy, reliable thermostat with a big screen and flexible system options.

Pros:

  • Large 5-inch LCD screen for easy reading
  • Simple to install with built-in level and clear menus
  • Offers useful features like auto changeover and filter alert

Cons:

  • The display may get less clear after a long time
  • Wi-Fi is optional and may add some complexity if used
  • Fewer advanced options than higher-tech models

This thermostat makes managing your home’s temperature simple and straightforward. Its big screen and easy controls help you stay comfortable and save energy.

Honeywell Wi-Fi 9000 Color Touch Screen Programmable Thermostat

The Honeywell Wi-Fi 9000 Color Touch Screen Thermostat is a smart choice for homeowners. It has a big, colorful screen that you can control with your finger. You can change the temperature easily and see everything clearly. The thermostat connects to Wi-Fi, so you can adjust your home’s temperature from anywhere using the app or website. It learns your daily habits fast—usually in just a day—and helps you save energy with smart scheduling. You can set the schedule to fit your routine, keeping your home comfortable and saving money on your power bills.

This thermostat works with 24V systems and needs a C wire for power. If your system doesn’t have a C wire, you might need some extra wiring work. It does not automatically change for daylight savings, so you will need to update the time manually. Also, the screen stays lit all the time, which might use a little more energy.

Best For: People who want a modern, easy-to-use thermostat that connects to Wi-Fi, so they can control it remotely and set schedules for energy savings.

Pros:

  • Connects to Wi-Fi, so you can control it from your phone or computer.
  • Learns your habits quickly to make your home comfortable.
  • Has a bright, touchable screen that is easy to read and use.

Cons:

  • Needs a C wire or special wiring, which might be tricky for some installs.
  • Doesn’t automatically change for daylight savings; you need to do it manually.
  • The screen stays on, which can use more energy and might affect battery life.

Factors to Consider When Choosing Smart Thermostats for Energy Saving

When choosing a smart thermostat, you’ll want to verify if it’s compatible with your HVAC system—no one wants a fancy gadget that doesn’t play nice with your existing setup. Ease of installation matters too, especially if you’re not a wiring wizard; some models even come with step-by-step guides that make it feel like a fun DIY project. And don’t forget about features like advanced scheduling, connectivity options, and data security—these elements ensure you save energy without sacrificing comfort or privacy.

Compatibility With HVAC Systems

Making sure your smart thermostat matches your HVAC system is important. It helps your system work well and saves energy. First, check if the thermostat works with your type of system. Whether you have central air, a boiler, or heat pumps, it needs to fit. Some old homes need a wire called a C wire. This wire gives power to the thermostat. See if you need this wire or if your thermostat can run without it.

Voltage is also important. Most systems use 24-volt AC power. Using the wrong voltage can cause problems or even damage your system. Make sure your thermostat matches the voltage of your system.

Your smart thermostat should also work with your smart home devices. This makes it easy to control and connect everything.

Finally, look at the manufacturer’s list of compatible systems or follow their instructions. This helps you avoid surprises later.

Choosing the right thermostat means it will run smoothly and last longer. It’s worth checking before you install.

Ease of Installation

Choosing a smart thermostat that’s easy to install can save you time and frustration. If the thermostat needs a C-wire, it usually makes setup easier because it gets steady power. Look for models that come with clear step-by-step guides and built-in level indicators. These little features help you avoid mistakes during installation. Make sure the thermostat works well with your existing heating and cooling system. Some thermostats are made for common setups, which can make wiring simpler. Touchscreens or digital controls with clear labels make it easy to set up and get started. Wireless or Bluetooth models can also be easier to install because they need fewer wires. Just check first if your system supports them. Overall, an easy-to-install thermostat helps you enjoy comfort and save energy faster. Plus, you spend less time working on it and more time relaxing.

Advanced Scheduling Features

Advanced scheduling features help you save energy with your smart thermostat. You can set days and times for your heating and cooling. This means the thermostat won’t use energy when you’re asleep, at work, or away. Many models let you create weekly schedules. You can change them easily using a phone app. If your plans change, you can adjust the schedule quickly. Some thermostats learn your habits over time. They adjust themselves to keep you comfortable and save energy. A few models even let you control different parts of your home separately. This way, empty rooms don’t waste heating or cooling. These features make managing your home’s temperature simple and smart.

Connectivity and Control Options

When you use a smart thermostat, staying connected is easy. Wi-Fi lets you control your thermostat from anywhere. You can use your phone or computer to change the settings. No need to get up and turn a knob.

You can also use your voice. If you have Alexa or Google Assistant, just say what you want. It’s hands-free and super convenient. For example, you can say, “Turn the heat up,” and it happens.

Smart thermostats can follow a schedule. You set the times you want the temperature to change. This helps save energy without needing to remember to do it every day.

Some models work with other smart home devices. They can sense which rooms are in use. This way, they can keep some rooms warmer and others cooler. It makes your home more comfortable and saves energy.

Many smart thermostats learn your habits over time. If you usually turn the heat up in the evening, they remember. They will do it for you automatically. This makes your home cozy and helps lower your energy bills.

Data Security and Privacy

Smart thermostats collect a lot of personal data, like your daily routines, favorite temperatures, and even your location. Because of this, it’s very important to keep your information safe. You don’t want strangers or hackers to access your data. Look for thermostats that use encryption. Encryption is like a secret code that keeps your data safe when it’s sent from your device to the internet. Make sure the company’s privacy rules are clear. Find out if they sell your data or share it with others. Also, check if they keep your data anonymous to protect your identity.

It’s a good idea to keep your device updated. Regular updates fix security problems so hackers have a harder time breaking in. Pick a thermostat that clearly states how it handles privacy and security. Finally, review your privacy settings and control what data you share. Taking these steps helps keep your personal information safe and secure.

FAQs

Are Smart Thermostats Compatible With All Heating and Cooling Systems?

Not all smart thermostats are compatible with every heating and cooling system. You need to check your system’s type and wiring compatibility before choosing a smart thermostat to guarantee proper function and avoid installation issues.

How Do Smart Thermostats Impact Long-Term Energy Costs?

Smart thermostats reduce your long-term energy costs by optimizing heating and cooling schedules, learning your habits, and adjusting settings automatically. This efficiency leads to lower utility bills and helps conserve energy over time.

Can Smart Thermostats Be Controlled Remotely Without Wi-Fi?

No, smart thermostats typically require Wi-Fi for remote control. Without Wi-Fi, you can only adjust settings manually on the device itself, limiting convenience but still allowing basic temperature adjustments without internet access.

Do Smart Thermostats Require Professional Installation?

Smart thermostats often don’t require professional installation; many models offer DIY setup with clear instructions. However, if you’re unsure about wiring or compatibility, hiring an expert can guarantee proper installation and peak performance.

How Secure Are Smart Thermostats Against Hacking Risks?

Smart thermostats have strong security features, but risks exist if you don’t update firmware regularly or use weak passwords. You can minimize hacking risks by enabling two-factor authentication, updating software, and securing your Wi-Fi network consistently.

Last update on 2025-12-24 / Affiliate links / Images from Amazon Product Advertising API.   Some of the links on this website are affiliate links, which means that at no additional cost to you, I earn a commission if you click through and make a purchase. I only recommend products and services that I believe will add value to my readers. Thank you for your support!

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