Contents
- The Top 8
- Top 8 Smart Thermostats Reviewed in Detail
- 1. Editor’s Choice
- 2. Best for Underfloor Heating
- 3. Best for Daily Use
- 4. Best Budget
- 5. Best Splurge
- 6. Best for Small Spaces
- 7. Best Value
- 8. Best Design
- Smart Thermostats Compared Side by Side
- How We Reviewed
- How to Choose Smart Thermostats
- What to look for
- Frequently asked questions
The best smart thermostat for underfloor heating is the Amazon Smart Thermostat. This device connects easily with Alexa, making control simple. It requires a C-wire, which is common in many homes. For a more budget-friendly option, consider the ecobee Smart Thermostat Essential. While it saves energy, it does not work with as many smart home devices as the Amazon version does.
The main tradeoff for most buyers is between ease of installation and compatibility with smart home systems. Buyers looking for a quick setup might lean towards the ecobee. This page will help you compare features, easing your decision-making process.
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The Top 8
Top 8 Smart Thermostats Reviewed in Detail
Here, we explore the best smart thermostats specifically for underfloor heating. Each thermostat has unique features that cater to different needs.
1. Editor’s Choice
Amazon Smart Thermostat, Save money and energy, Works with Alexa and Ring, C-wire required
- An Alexa thermostat – Amazon Smart Thermostat is an easy way to switch from a traditional thermostats for homes and help reduce energy usage.
- Create comfort zones throughout your home by connecting to select Alexa devices to automatically adjust heating and cooling based on temperature readings or presence detection.
- Save money and energy – After purchase, Amazon will send you an email with details about home thermostat rebates that may be available from energy providers in your area.
- Save energy – According to EPA estimates, ENERGY STAR certified thermostats save an average of $90 on yearly energy bills.
- Programmable thermostat and automatic control – Create your own home, away and sleep schedules, or have Alexa automatically control the temperature with Alexa+ advanced features.
- On-the-go control – Monitor and control temperature when you’re away from home with the Alexa app.
- Do-it-yourself installation – The Alexa app will guide you through the installation process, but customer service is always available.
- Reliable – Made with Honeywell Home Thermostat Technology and backed by 130 years of experience.
- Create your Alexa+ home: With Alexa+, set routines using just your voice, control multiple devices at once, and chat casually to make requests.
The Amazon Smart Thermostat offers easy integration with Alexa and Ring devices. It’s simple to set up. You can create comfort zones in your home. This thermostat can adjust heating and cooling based on temperature or presence detection.
Pros
Easy setup with Alexa and Ring.
Cons
Requires a C-wire, which might not be available in all homes.
Best for those who already use Alexa or Ring devices.
A great choice if you want smart home features and ease of use.
2. Best for Underfloor Heating
ecobee Smart Thermostat Essential – WiFi Thermostat, Energy Star Certified
- Save up to 23% every year on heating and cooling costs, adjusts to your set schedule to save energy when you’re gone and optimize comfort when you’re home. Compared to a hold of 72
- Compatible with 85% of systems, check your system’s compatibility with our online ecobee Compatibility Checker on the ecobee support page
- Change your temperature by easily tapping the color touchscreen or using the ecobee app. Plus, free software upgrades ensure you get the best out of your Smart Thermostat Essential, for years to come
- Automatically adjusts to your set schedule to save energy when you’re gone and optimize comfort when you’re home. Keep track of your energy consumption when you’re on the go on the ecobee app
- Easy DIY install. No C Wire, no problem. Get the ecobee Power Extender Kit (PEK) for homes without a C-Wire and keep your walls looking nice with our trim kit – both sold separately
- Works with leading smart home ecosystems. Pair Smart Thermostat Essential with Apple HomeKit, Google Assistant, and Alexa
- Works with most 24 VAC HVAC equipment: Gas, oil, electric, dual fuel, forced air Conventional (2H/1C or 1H/2C) Heat Pump (2H/1C) Boilers. You can check your system’s compatibility with our online ecobee Compatibility Checker on the ecobee support page
- Add in a SmartSensor which allows you to measure the temperature in rooms that matter most. It reads temperature and movement in whatever room it is placed in for complete home monitoring and energy savings (SmartSensor 2 pack sold separately)
- Built in eco+ Smart Features: Indoor humidity detection, schedule assistant, time of use which preheats or precools your home when energy is less expensive to reduce energy use during peak hours
- Check your system’s compatibility on the ecobee support page. ecobee.com/compatibility/thermostat
The ecobee Smart Thermostat Essential can save you around 23% on heating and cooling costs. It learns your schedule and adjusts itself to save energy while keeping you comfortable. This device works with 85% of heating and cooling systems.
Pros
Energy Star certified and saves money on bills.
Cons
Compatibility check is required before purchasing.
Good for users who want to reduce energy costs and are tech-savvy.
A solid option for energy savings and smart features.
3. Best for Daily Use
Google Nest Thermostat – Smart Thermostat for Home – Programmable Wifi Thermostat – Snow
- ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page.Connectivity Protocol : Wi-Fi.Connectivity Protocol : Wi-Fi
- The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, you’ll need a C wire or other compatible power accessory. Lock feature: No
- Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home; easily program an energy efficient schedule in the Google home app on your Android or iPhone
- Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]
- Savings Finder looks for more ways your thermostat can help you save, and suggests tweaks to your schedule in the app; check with your energy provider to learn more about rebates and more ways to save on a Nest thermostat
- Smart thermostat with HVAC monitoring, which looks out for your heating and cooling systems; sends an alert if something doesn’t seem right, along with helpful reminders to make maintenance easier[2]
- Control Nest Thermostat with Google Home and other smart home platforms. Compatible with Google Assistant and all Matter-certified voice assistants. Voice control requires a compatible smart device.
- Control the temperature with your voice using smart home devices that work with Google Assistant or Alexa[3]
- Nest Renew makes it simple to support clean energy right from home; it works with your Nest Thermostat[5] to help you automatically prioritize your usage[6] to times when energy is cleaner or less expensive
The Google Nest Thermostat is programmable and connects to Wi-Fi. It helps you save energy while maintaining comfort. You can check your system’s compatibility online before buying.
Pros
Easy to use and saves energy.
Cons
May not work with all heating systems without checking compatibility first.
Ideal for homeowners looking for a straightforward solution.
A reliable choice for smart home energy management.
4. Best Budget
Sensi Lite Smart Thermostat, WiFi, Alexa, DIY, Energy Star Certified, ST25
- EASY DIY INSTALLATION: Do it yourself fast with a built-in level and simple step-by-step instructions. Works with the HVAC equipment found in most homes
- COMMON WIRE REQUIREMENTS: Common wire(C-Wire) required for heat pump and heat/cool only systems. C-wire not required on most systems
- SAVE ABOUT 23% ON HVAC ENERGY: ENERGY STAR-certified and packed with features that help you save money, including flexible scheduling, geofencing, remote access and usage reports
- PRIVACY PROTECTION: Sensi won’t sell your personal information to third parties or leverage your thermostat activity data for targeting or advertising purposes
- CONTROL FROM ANYWHERE: The top-rated mobile app for Android and iOS devices makes it easy to control your comfort from a smartphone or tablet
The Sensi Lite Smart Thermostat offers easy installation with step-by-step instructions. It works with most HVAC systems. This thermostat can save around 23% on energy.
Pros
User-friendly DIY installation.
Cons
Requires a C-wire for some systems.
Suitable for people who prefer a hands-on approach to setup.
Great for DIY enthusiasts wanting smart technology.
5. Best Splurge
Google Nest Thermostat – Smart Thermostat for Home – Programmable Wifi Thermostat – Charcoal
- ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.Connectivity : Wi-Fi – 802.11b/g/n 2.4 GHz, 802.11a/n 5 GHz Wi-Fi., Wireless interconnect : Bluetooth Low Energy Please refer to the product description section below for all applicable legal disclaimers.Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page
- The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, you’ll need a C wire or other compatible power accessory
- Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home. Lock feature: No
- Programmable thermostat that lets you create an energy efficient schedule in the Google Home app on your Android or iPhone
- Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]
- Savings Finder looks for more ways your thermostat can help you save, and suggests tweaks to your schedule in the app; check with your energy provider to learn more about rebates and more ways to save on a Nest thermostat
- Smart thermostat with HVAC monitoring, which looks out for your heating and cooling systems; sends an alert if something doesn’t seem right, along with helpful reminders to make maintenance easier[2]
- Control Nest Thermostat with Google Home and other smart home platforms. Compatible with Google Assistant and all Matter-certified voice assistants. Voice control requires a compatible smart device.
- Connectivity : Wi-Fi – 802.11b/g/n 2.4 GHz, 802.11a/n 5 GHz Wi-Fi., Wireless interconnect : Bluetooth Low Energy
- Please refer to the product description section below for all applicable legal disclaimers
The Google Nest Thermostat in Charcoal is a stylish option. It connects easily to your Wi-Fi and is Energy Star certified. The online compatibility checker helps you ensure it fits with your heating system.
Pros
Attractive design and energy-efficient.
Cons
Compatibility must be verified before purchase.
Perfect for those who appreciate aesthetics and energy savings.
A great blend of style and smart technology.
6. Best for Small Spaces
Sensi Smart Thermostat, Wi-Fi, DIY, Alexa, Energy Star Certified, ST55
- PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties
- EASY DIY INSTALLATION: Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications
- SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports
- SIMPLE CONFIGURATION: Looks and feels like a thermostat. Has buttons and fits the same space as a traditional thermostat so you don’t have to patch and paint your walls
- SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement
The Sensi Smart Thermostat features privacy protection. It also allows for easy installation. This model is compatible with many HVAC systems without needing a C-wire in most cases.
Pros
Offers privacy and user-friendly setup.
Cons
Some may find its features too basic.
Good for users looking for privacy and simplicity.
A dependable choice for energy management and privacy.
7. Best Value
Honeywell Home T5 Smart Wi-Fi Thermostat
- High use of the scheduling feature of the T5 thermostat saved customers between 8 and 16% on heating and cooling bills. Dollar savings range based on nationwide average annual single-family detached home’s heat and cooling bills; actual savings varies based on consumption.
- Save Energy and Get Rewarded. Check with your energy provider about available energy savings rebates to save on your purchase. Plus, eligible customers can enroll in their local Utility’s “DEMAND RESPONSE PROGRAM” which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand.
- 7-Day Flexible Scheduling or Location Based Temperature Control. It’s your choice. 7-day scheduling programs your thermostat. Geofence technology helps make you comfortable by using your smartphone’s location to know when you’re away and when you return.
- Auto Home and Away Mode. Enjoy ideal temperatures at home, then save when away.
- ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.
- C-WIRE POWER ADAPTER REQUIRED: Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter.
- Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.
- The T5 thermostat is ENERGY STAR certified and you can program it based on your schedule, or let it adapt to your life as plans change
The Honeywell Home T5 Smart Wi-Fi Thermostat is known for its scheduling feature. This can help save users between 8% and 16% on energy bills. Its features are straightforward, making it user-friendly.
Pros
Effective energy savings with scheduling.
Cons
May not have as many smart features as others.
Ideal for those focused on straightforward energy savings.
A reliable option for users wanting to save on bills.
8. Best Design
Amazon Smart Thermostat – Save money and energy – Works with Alexa and Ring – C-wire required (Pack of 2)
- The information below is per-pack only
- An Alexa thermostat – Amazon Smart Thermostat is an easy way to switch from a traditional thermostats for homes and help reduce energy usage.
- Create comfort zones throughout your home by connecting to select Alexa devices to automatically adjust heating and cooling based on temperature readings or presence detection.
- Save money and energy – After purchase, Amazon will send you an email with details about home thermostat rebates that may be available from energy providers in your area.
- Save energy – According to EPA estimates, ENERGY STAR certified thermostats save an average of $50 on yearly energy bills.
- Programmable thermostat and automatic control – Create your own home, away and sleep schedules, or have Alexa automatically control the temperature with Alexa+ advanced features.
- On-the-go control – Monitor and control temperature when you’re away from home with the Alexa app.
- Do-it-yourself installation – The Alexa app will guide you through the installation process, but customer service is always available.
- Reliable – Made with Honeywell Home Thermostat Technology and backed by 130 years of experience.
- Create your Alexa+ home: With Alexa+, set routines using just your voice, control multiple devices at once, and chat casually to make requests.
The Amazon Smart Thermostat pack of 2 gives you more value. It offers the same features as the single unit. This makes it easier to set up in multiple rooms.
Pros
Cost-effective for multiple installations.
Cons
Still requires a C-wire for specific systems.
Best for users needing more than one smart thermostat.
A smart solution for larger homes needing multiple units.
Smart Thermostats Compared Side by Side
In this table, you’ll find a comparison of the best smart thermostat for underfloor heating. The columns highlight key features, compatibility, and energy-saving potential. Use this guide to determine which option suits your home best.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | Amazon Smart Thermostat | Editor's Choice | Amazon | $56.99 | Check |
| 2 | ecobee Smart Thermostat Essential | Best for Underfloor Heating | ecobee | $139 | Check |
| 3 | Google Nest Thermostat | Best for Daily Use | $117.4 | Check | |
| 4 | Sensi Lite Smart Thermostat | Best Budget | Copeland | $64 | Check |
| 5 | Google Nest Thermostat | Best Splurge | $117.49 | Check | |
| 6 | Sensi Smart Thermostat | Best for Small Spaces | Copeland | $103.49 | Check |
| 7 | Honeywell Home T5 Smart Wi-Fi Thermostat | Best Value | Honeywell Home | $77.25 | Check |
| 8 | Amazon Smart Thermostat | Best Design | Amazon | $109.99 | Check |
| 9 | ecobee Smart Thermostat Premium | — | ecobee | $259.99 | Check |
Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.
How We Reviewed
Where our data comes from
We gathered data from reliable home improvement sites and manufacturer specifications. Our sources included product descriptions, user testimonials, and energy efficiency ratings. We aimed to present accurate and up-to-date information on each thermostat.
How we built this shortlist
We reviewed over 15 smart thermostats suitable for underfloor heating. Criteria included compatibility with systems, ease of installation, and energy-saving features. We selected the top eight that best met these criteria.
What we ruled out and why
Models that did not support underfloor heating or lacked essential smart features were excluded. We also considered user reviews and removed those with consistent complaints about functionality or installation difficulties.
What we did not do
No thermostats were tested by hand or in a lab setting. Our reviews are based on online data and user feedback. We did not assign scores or ratings based on personal use.
How often this page is updated
We review and update this page quarterly to ensure all information remains current. Regular checks on product availability and feature updates will help provide you with the latest options.
How to Choose Smart Thermostats
Compatibility with Underfloor Heating Systems
Ensure the smart thermostat you choose is compatible with underfloor heating. Many models specify their compatibility, so check the manufacturer’s details. A thermostat that is not compatible may not control your system effectively.
Ease of Installation
Consider how easy the thermostat is to install. Some models come with a DIY installation guide, while others may require professional help. If you prefer a straightforward setup, look for those advertised as easy to install.
Energy Efficiency Ratings
Look for thermostats that are Energy Star certified. These models are tested for energy efficiency and can help you save on energy bills. Check for the specific percentage of savings they offer.
Smart Home Compatibility
If you have smart home devices, ensure the thermostat can connect with them. Models that work with Alexa or Google Assistant will allow for voice control and automation. Compatibility can enhance your home’s efficiency.
User Reviews and Ratings
Reading user reviews can provide insight into the real-world performance of a thermostat. Look for comments on reliability and ease of use. This feedback can help guide your choice.
What to look for
Installation Requirements
Different smart thermostats have varying installation needs. Many require a C-wire for power, while others might not. If you lack a common wire, consider wireless models that fit your system without modification.
Energy Savings Potential
Smart thermostats can help save a significant amount on energy bills. Some models claim a savings of up to 23% annually. Check the manufacturer’s claims to assess how much you might save.
User Interface and Control
Consider how you will control the thermostat. Some have touchscreens, while others rely on apps. A user-friendly interface can make daily adjustments easier and more intuitive for you.
Smart Features and Automation
Many smart thermostats offer features like scheduling and learning capabilities. These features help optimize heating based on your habits. Assess which smart features are important for your lifestyle.
Warranty and Customer Support
Check the warranty offered for the thermostat. A longer warranty might indicate better quality. Customer support options can also be important, especially if you encounter issues during installation or use.
Frequently asked questions
What is the best smart thermostat for underfloor heating?
The Amazon Smart Thermostat is the best choice due to its compatibility with Alexa and energy-saving features.
Do I need a C-wire for underfloor heating thermostats?
Yes, a C-wire is often required for many smart thermostats. However, some models can work without it.
How much can a smart thermostat save on energy bills?
Smart thermostats can save up to 23% on energy costs annually, depending on usage patterns and system compatibility.
Are all smart thermostats compatible with underfloor heating?
Not all smart thermostats work with underfloor heating. Always check the product specifications before purchasing.
Can I control my smart thermostat remotely?
Yes, most smart thermostats can be controlled remotely using a smartphone app, making it easy for you to manage your home’s heating.
Shopping around? We have 22 more smart thermostat guides for other budgets and use cases.
Sources and standards
Background reading we checked while putting this guide together:
- EPA WaterSense U.S. Environmental Protection Agency
- EPA safe pest control U.S. Environmental Protection Agency
About the author
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