A heat pump is the most efficient way to heat a house, and also the most misunderstood. It runs on electricity, it has a compressor with a temperature floor below which it simply shuts down, and it hands off to expensive electric strip heat the moment the outdoor temperature drops past the point where it can keep up. The thermostat is where all of that gets decided.
Get the thermostat configuration wrong and a heat pump that should cost you a fraction of what a furnace costs will quietly run its backup heat for weeks. Get it right and the same system runs on the compressor nearly all winter. That is the whole reason this guide exists. We went through 10 of the strongest smart thermostats for heat pumps currently on the market, compared their staging support, wiring needs, sensor options and app depth, and pulled in the configuration values that owners on heating forums actually run.
What follows is the best smart thermostats for heat pumps roundup for 2026, ordered by what matters on a heat pump rather than by how the display looks. The short version: if your system has electric backup heat and you want it to stay off as long as possible, the Sensi Smart Thermostat ST55 is the one most people should buy. If you run a three-stage heat pump or a zoned house, the Honeywell Vision Pro 8000 handles more than anything else here. If you want room-by-room control, the ecobee models are the standard answer. We cover the general smart thermostat market in our energy savings smart thermostat guide too, but heat pumps punish mediocre settings, so the picks below are different.
Table of Contents
Top 3 Picks for Heat Pump Owners in 2026
The three below are the shortlist. Each one earns its place for a different reason, and the reasoning matters more than the ranking. A heat pump thermostat that cannot hold the compressor running through a cold snap is not a bargain, no matter what it costs.
Sensi Smart Thermostat ST55
- Works with heat pumps
- C-wire not needed in most installs
- ENERGY STAR certified
- Alexa and HomeKit support
ecobee Smart Thermostat…
- Included SmartSensor
- built-in air quality monitor
- power extender kit included
- 3-year warranty
ecobee Smart Thermostat…
- Occupancy sensing
- eco+ optimization
- power extender kit included
- 90% of HVAC systems
Our team has spent a lot of time reading owner reports on heating and HVAC forums, and the same pattern keeps showing up: the thermostats that generate regret are not the cheap ones, they are the ones whose menus hide the heat pump settings. Every product below exposes staging, backup heat control and system type selection clearly enough that you can configure it without a service call.
Best Smart Thermostats for Heat Pumps (October 2026)
Here is everything in one place. The features column covers what each unit actually does out of the box, not what the marketing page implies. Ratings and review counts are the current Amazon figures for each listing.
| Product | Specs | Action |
|---|---|---|
| Sensi Smart Thermostat ST55 |
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Check Latest Price |
 Honeywell RTH9600WF Smart Color Thermostat |
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| ecobee Smart Thermostat Premium |
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| ecobee Smart Thermostat Enhanced |
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 Honeywell Lyric T6 Pro |
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 Sensi Touch 2 ST76 |
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 Sensi Lite ST25 |
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 Honeywell Vision Pro 8000 |
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 Honeywell T10 Pro |
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 YoLink Thermostat 2 |
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Check Latest Price |
Two things jump out of that table. First, only three of these ten advertise explicit staging limits, and two of them cap out at two heat stages. Second, the models that skip the C-wire requirement are mostly the ones that also skip deeper heat pump menus, so those two features tend to trade against each other.
What a Heat Pump Thermostat Has to Do Differently
A heat pump does not have a flame. What it has is a compressor running in either heating or cooling mode, switched by an O/B reversing valve, and that single fact changes what the thermostat has to control.
The O/B reversing valve is the wire you will see on a heat pump thermostat and never on a furnace. Without it the equipment cannot tell whether the compressor is heating or cooling, and no amount of smart features will compensate. Every unit in this roundup handles it.
Staging is the second difference. A two-stage heat pump has one compressor stage and a lower-output stage, and a three-stage unit adds another. A thermostat that only speaks single-stage will run the compressor at full output constantly, which costs money and shortens compressor life. Two models below handle up to three heat stages.
Auxiliary heat lockout is the setting that decides when the expensive electric strips are allowed to join in. Set it too high and you burn through resistive heat on a mild day. Set it too low and the house never reaches temperature. This is the single most misconfigured value on a heat pump install, and it is where most of the money is saved or lost.
Compressor lockout is a different animal. It is a hard floor below which the thermostat refuses to call the compressor at all, which matters in genuinely cold climates where running a cold compressor can damage the unit. Auxiliary lockout is a preference; compressor lockout is protection.
Balance point is the outdoor temperature where heat pump capacity equals the heat loss of your house. Below it, the heat pump cannot keep up no matter how long it runs, so supplemental heat is not optional but necessary. Thermostats that do not expose a balance point or a lockout figure make you guess.
Finally, the C-wire question is more complicated on a heat pump than on a furnace. A heat pump usually has more equipment to power, and several of the units below state plainly that a common wire is required specifically for heat pump installations even when they can run without one on other systems. We dig into the workarounds in the C-wire section below.
1. Sensi Smart Thermostat ST55: The Best Overall Pick for Heat Pumps
Sensi Smart Thermostat, Wi-Fi, DIY, Alexa, Energy Star Certified, ST55
Heat pump compatible
No C-wire needed in most installs
24V AC powered
3 year warranty
Pros
- Easy DIY install with a built-in level on the plate
- Works with Alexa and Apple HomeKit
- Accurate temperature readings across installations
- Same footprint as a standard thermostat
- ENERGY STAR certified with usage reports
Cons
- Alert thresholds for temperature and humidity cannot be adjusted in the app
- Wi-Fi pairing can be finicky on some routers
- Button control rather than a touchscreen
The ST55 is the model I keep coming back to for heat pumps, and the reason is not the app or the price. It is the combination of a 4.4 rating across more than 23,000 reviews and the fact that it lists heat pump as a supported equipment type while still working without a C-wire in most installations.
That combination is rare. Most thermostats that skip the common wire are the cheap single-output units, and most thermostats with proper heat pump menus want steady 24 volt power. The ST55 lists air conditioner, boiler, furnace and heat pump among its specific uses, runs on 24 volts of alternating current, and ships with two AA batteries as backup.
Owners consistently describe installation in minutes rather than hours, and the built-in level on the mounting plate is the detail people mention most. Because the footprint matches a traditional thermostat, there is no wall patching or repainting, which matters if you are swapping a unit mounted in 1985.
The app handles Wi-Fi setup and seven-day scheduling with copyable schedule templates, which is genuinely useful if you are moving from a mechanical dial thermostat. It is ENERGY STAR certified, and Sensi states the company does not sell personal information to third parties, a claim that is unusual in this category.
Check the equipment type setting before you wire it
The single most common heat pump mistake with this unit is leaving the system type on furnace. The app setup asks what you are controlling, and choosing heat pump enables the O/B reversing valve handling and the staging options. Get that wrong and the compressor will not switch modes properly even though the thermostat appears to work.
Because it is listed as heating and cooling equipment with a standard 5 inch LED screen, it also handles a heat and cool only system, which is what many ducted mini splits look like electrically. Our mini split heat pump guide covers that equipment type in more detail.
Who should not buy it
If your setup is a three-stage heat pump, or a zoned house with dampers, you want more staging awareness than this model offers. If you want to know which room you are in and average across sensors, there is no remote sensor support here at all, and the difference matters in a two-story house with uneven floors.
There is also a small delay of roughly 20 to 25 seconds before the system responds to a temperature change, and the alert thresholds are not adjustable from the app. Neither is a dealbreaker, but both annoy people who expect instant response.
2. Honeywell RTH9600WF Smart Color Thermostat: Best for Clear Setup on Standard Heat Pumps
Honeywell Home RTH9600WF Smart Color Thermostat ENERGY STAR Wi-Fi Programmable Touchscreen Alexa Ready – C-Wire Required
Color touchscreen
Heat pumps with electric backup
C-wire required
2 year warranty
Pros
- Customizable high-definition color screen
- On-screen indoor and outdoor temperature
- humidity and forecast
- Works with Alexa
- Google Assistant
- Microsoft Cortana and IFTTT
- ENERGY STAR certified with personalized saving tips
Cons
- C-wire power adapter required for most installations
- Does not work with 120-240V electric baseboard heat
- Less smart home depth than premium ecobee models
Honeywell built this one for the mainstream forced-air market, and it is a good fit for a heat pump with electric backup that runs two stages at most. The 4.3 rating across more than 20,000 reviews reflects a device that works reliably and is easy to read from across a room.
The color screen is genuinely the best-looking thing in this group for a thermostat that people actually look at. Owners like being able to match the display color to the room, and the comfort panel showing indoor and outdoor temperature, humidity and a daily forecast makes it easy to see whether the system is actually calling for heat from the outdoor unit.
Voice and platform support is broad, covering Amazon Alexa, Google Assistant, Microsoft Cortana and IFTTT. It is ENERGY STAR certified, and eligible customers can enroll in ongoing energy savings incentives with their energy provider, which is a differentiator in regions with utility thermostat programs.
On a heat pump specifically, the compatibility note is the important line: forced air, hot water and steam, and heat pumps with electric backup. That tells you this is designed for a system where supplemental heat is electric strips, which is the common case for a cold climate heat pump.
Know what you are signing up for on the wiring
This model requires a C-wire for most installations, and the listing says so in the product name. If your heat pump has a common wire, this is a clean install. If it does not, you are looking at a power adapter or a new wire run, and we cover both in the C-wire section below.
It is also worth noting the unit runs on one AAA battery with the C-wire supplying primary power, and carries a two year limited warranty. That is shorter than the three years offered by the ecobee units, and shorter than the Sensi ST55.
Where this model falls short
It does not control 120-240V electric baseboard heat, which rules it out for a heat pump paired with line-voltage auxiliary heaters. More importantly for a heat pump owner, the smart home feature depth is thinner than the ecobee Premium, with no room sensors, no air quality data and no occupancy sensing.
A small number of installers report that connectivity occasionally drops and the device needs re-registration. For a thermostat that is your only control point for heating, that is worth considering before you commit.
3. ecobee Smart Thermostat Premium: Best Heat Pump Feature Depth
ecobee Smart Thermostat Premium – WiFi, Siri & Alexa Built-In, Smart Sensor
95% of HVAC systems
SmartSensor included
Power extender kit
3 year warranty
Pros
- Included SmartSensor balances temperature room by room
- Built-in air quality monitor with alerts and filter reminders
- Radar occupancy sensor preheats and precools the home
- Power Extender Kit included for homes without a C-wire
- Compatible with 95% of HVAC systems including heat pumps
Cons
- Highest price tier among the models compared
- Siri support requires an Apple home hub
- Additional SmartSensors sold separately per room
If you want the most heat pump aware thermostat on the market, this is it, and the reason has less to do with the compressor settings than you might expect. It is the occupancy radar combined with the included SmartSensor, because the biggest energy waste on a heat pump is running full output for an empty house.
The Premium claims compatibility with 95 percent of HVAC systems and includes an online compatibility checker, so you can confirm your equipment before you commit. That matters more on a heat pump than on a furnace, because a staging mismatch is harder to diagnose after the fact.
Feature-wise it is the most complete device here: built-in air quality monitor with alerts, filter change reminders, a radar occupancy sensor with routine learning and eco plus optimization, and a built-in speaker that runs Siri or Alexa. The radar preheats the home before you arrive, which is the one feature owners with cold climate systems mention first, because it means the compressor starts early and runs steady instead of sprinting.
Two year and three year ownership reports on the ecobee community tend to describe the same pattern: installed easily with the included power extender, and the SmartSensor solved a hot second floor within a week. The negative thread running through those same reports is cost, since extra rooms mean extra sensors.
Check your system type and stage count during install
ecobee walks you through equipment selection in the app, and you will be asked whether the system is a heat pump. Say yes, because the app then exposes the reversing valve behavior and staging choices specific to compressors. Owners who skip this and leave it on furnace settings are the ones who end up calling support.
The SmartSensor is what earns its place on a heat pump. With a single room sensor on the thermostat, a two-story house can swing five degrees between floors, and the compressor will chase the warmest reading all night. Positioning the sensor in the bedroom and letting the thermostat average produces steadier run times and a lower average indoor temperature, which is efficiency.
Where it is the wrong purchase
This sits at the top price tier of the units compared here, before you add a single sensor, and additional SmartSensors are sold per room. If you live in a small single-story home with even heating, the money buys features you will not use, and the Enhanced model below delivers the important half at a lower tier.
Siri requires an Apple home hub. The doorbell camera and security features are gated behind a paid ecobee subscription. And at a 4.3 rating, it is not the highest rated device here, which tells you the strong scores in this category are not simply tracking price.
4. ecobee Smart Thermostat Enhanced: Best Value for Heat Pump Owners
ecobee Smart Thermostat Enhanced, Programmable Wifi Thermostat
Compatible with 90% of HVAC systems
Power extender kit included
3 year warranty
4 inch display
Pros
- Built-in occupancy sensing with preheat and precool
- eco+ uses routine
- weather and grid activity
- Power Extender Kit included for no C-wire homes
- Works with Alexa
- Google Assistant
- HomeKit and SmartThings
Cons
- SmartSensors for room-by-room comfort sold separately
- No built-in voice assistant unlike the Premium
- Scheduling is less convenient through the app alone
This is the pick I recommend to most people reading this who do not want to think about sensors. It holds a 4.4 rating across more than 3,700 reviews, which makes it one of the highest rated devices in the group, and it keeps the two features that actually reduce heat pump runtime: occupancy sensing and the eco plus optimizer.
Compatibility is stated at 90 percent of HVAC systems rather than 95, with the same included power extender kit, trim kit and mounting hardware. For a standard heat pump with electric backup, that number is comfortable. For an unusual system with a proprietary control board, check first.
The occupancy sensor handles preheat and precool, and eco plus factors in your routine, your preferences, local weather and grid activity. On a heat pump that is genuinely useful, because heat pumps respond well to long steady run times and badly to constant on-off cycling.
The 4 inch display and metal body look and feel close to the Premium, and the app is identical, so control from a phone, tablet or Apple Watch works the same way. Reviewers consistently describe it as the balanced option between the Premium and a basic Wi-Fi thermostat.
Why occupancy sensing matters more on a heat pump
On a gas furnace, overshooting while nobody is home costs you a little money. On a heat pump, it costs you compressor cycles, and short cycling is the fastest way to age the equipment. A thermostat that knows when the house is empty and backs off before the compressor starts is not a gimmick on this type of system.
What you give up versus the Premium is the included SmartSensor, the air quality monitor and the built-in speaker. If your home heats evenly and you do not care about a smart speaker in the thermostat, none of those change your energy bill.
Where it frustrates owners
App-only scheduling is the most common complaint, particularly for people used to a physical dial. Adding SmartSensors later still costs extra, so if you think you will want room control eventually, buy the Premium instead and get the first sensor in the box.
It also sits above the price of most basic programmable Wi-Fi thermostats, which is the entire argument for it. The question is whether occupancy sensing and eco plus pay for the difference on your system. In a two-story or drafty house, they usually do.
5. Honeywell Lyric T6 Pro: Best for Explicit Two-Stage Heat Pumps
Honeywell TH6220WF2006/U Lyric T6 Pro Wi-Fi Programmable Thermostat with Stages Up to 2 Heat/1 Cool Heat Pump or 2 Heat/2 Cool Conventional
2 heat / 1 cool staging for heat pumps
Battery powered
Wi-Fi app access
Pros
- Explicit support for two-stage heat pump systems
- Wi-Fi remote access without a separate hub
- Simple familiar thermostat layout
- Good value for a two-stage capable smart thermostat
Cons
- Older
- less refined app interface than newer models
- Basic non-color display
- C-wire typically required for continuous power and Wi-Fi operation
Most smart thermostats advertise heat pump compatibility as a checkbox. The Lyric T6 Pro puts the staging limit in the product name, which tells you exactly how much of your system it will understand. It supports up to two heat stages and one cool stage on a heat pump, and two heat by two cool on a conventional system.
It holds a 4.4 rating from more than 2,600 reviews, and reviewers are clear about why they bought it: two-stage support that many competing units simply do not offer. On a two-stage heat pump, that is the difference between letting the compressor modulate sensibly and running it flat out.
It runs on two AA batteries, which is unusual for a Wi-Fi thermostat and useful in a system without a common wire. It has been available since December 2016, which is both a strength and a weakness: it is a proven design, and it shows in the interface.
Owners describe the layout as familiar and easy to program, and the app as dependable without being modern. Setup does not require a hub or a separate bridge, which some competing ecosystems require before they will talk to your equipment at all.
Verify your staging before you order
If your heat pump is a three-stage unit, this is the wrong thermostat, and the Vision Pro 8000 further down handles that case explicitly. Two-stage is the common configuration in most markets, so this covers a large share of owners, but you should confirm what your outdoor unit actually has.
Also check for a C-wire. The unit is battery powered, but reviews note that a common wire is typically required for continuous power and reliable Wi-Fi operation. Batteries in a heat pump install are a fallback, not a plan.
What you give up
The display is basic and monochrome, and the app interface looks dated next to the ecobee and Sensi apps. There is no occupancy sensing, no air quality data, no humidity control and no remote sensor support, so uneven rooms stay uneven.
What you get is a thermostat that does one job, staging, without a lot of software to learn. For a straightforward two-stage heat pump in a small home, that simplicity is the feature.
6. Sensi Touch 2 ST76: Best for Heat Pumps With Room Sensor Support
Sensi Touch 2 Smart Thermostat Wi-Fi, Alexa, Energy Star Certified, ST76
Color LCD touchscreen
C-wire required
3 year warranty
Sensi room sensor compatible
Pros
- Attractive color touchscreen with slim beveled edge
- Universal Bluetooth app setup makes pairing very easy
- Compatible with Sensi Room Sensors for balancing rooms
- Works with Alexa
- Google Assistant
- SmartThings and HomeKit
- ENERGY STAR certified with usage reports
- Sensi does not sell personal information
Cons
- C-wire required
- Room sensors sold separately
- Occasional Wi-Fi connection drops after installation
- App interface could use a refresh
The Touch 2 is the Sensi answer to a specific heat pump problem: a house that heats unevenly because the thermostat sits in a hallway. It works with Sensi Room Sensors, which are wireless, and adding a couple of them is the single most effective comfort change most owners can make on a heat pump system.
At 4.3 stars from more than 1,200 reviews it trails the ST55, and the difference shows up mostly in two areas: it requires a C-wire, and its app needs an occasional refresh. Both are acceptable if you have a common wire available.
Setup is the highlight. The app walks through each install step using universal Bluetooth technology, so the thermostat connects to your phone without joining your Wi-Fi network first. Reviewers single this out as noticeably smoother than the process on competing units.
It is ENERGY STAR certified, runs on 24 volts through the common wire, and lists air conditioner, boiler, furnace and heat pump among supported equipment. The slim beveled edge design is a step up visually from the button-driven ST55.
Plan the sensor layout before you mount anything
Room sensors only help if you place them where the temperature actually differs. The common mistake is putting a sensor in each bedroom, which is fine, but skipping the room with the biggest heat loss. Put one sensor in the hallway or living area as well, and let the thermostat average across all of them.
Because sensors are sold separately, budget for two or three rather than one. On a two-story house with a heat pump, that is the difference between the compressor running steadily and cycling between a warm upstairs and a cold downstairs.
Where it falls short
The C-wire requirement is the main practical obstacle, and heat pump systems are exactly where that is hardest to solve. A small number of owners also report Wi-Fi connection drops shortly after installation. And the app interface is the weakest point in an otherwise polished device.
If you want the same room sensor approach with fewer wiring headaches, the Sensi ST55 pairs with a simpler sensor story and skips the C-wire in most cases. You trade the touchscreen for buttons.
7. Sensi Lite ST25: Budget Pick That Still Handles Heat Pumps
Sensi Lite Smart Thermostat, WiFi, Alexa, DIY, Energy Star Certified, ST25
24V system
3 year warranty
Battery or C-wire powered
Requires C-wire on heat pumps
Pros
- Very easy DIY install with a built-in level
- Large readable display with big numbers
- Simple app with color-coded background and 7-day schedule
- ENERGY STAR certified with geofencing
- Works with Alexa and Google Assistant
- Sensi does not sell personal information
Cons
- C-wire required specifically for heat pump and heat/cool only installs
- Monochrome LCD instead of a color display
- Repeated Wi-Fi connection losses reported
- Battery contacts reported as fragile
- Not intended for use outside the US and Canada
The Sensi Lite is the cheapest way into Wi-Fi control on a heat pump, and its 4.0 rating from more than 2,300 reviews is the lowest in this group, which tells you exactly where the compromises are. It is not a bad thermostat. It is a stripped one, and reliability is where the stripping shows.
The critical line in the specifications is the one about wiring. A C-wire is not required on most systems, but it is required for heat pump and heat or cool only installations. If you are buying this for a heat pump, you need a common wire, and the general guidance for homes without one is in our no C-wire thermostat guide.
What you get is a large, easily readable display with big numbers, a simple app with a color-coded background and a basic seven-day schedule, plus geofencing and usage reports under ENERGY STAR certification. The built-in level and step-by-step app guidance make installation about as easy as these get.
It works with Alexa and Google Assistant for basic remote control, and Sensi states it does not sell personal information or use thermostat activity data for advertising. That privacy posture is consistent across the Sensi range and is worth something in a connected device.
Judge this one on its Wi-Fi reliability
The pattern in the reviews is clear enough to be useful: owners who want remote app control without overspending rate it well, and the weakest area by far is reliability. A meaningful share of reviews describe Wi-Fi disconnection and setup difficulty, and that is what pulls the average down to 4.0 while every other score in this roundup sits at 4.3 or above.
For a heat pump that matters more than it would for a boiler. If the thermostat drops off your network during a cold night, the equipment may fall back to its own control or simply stop responding to schedules, and you find out when you get home.
Where it does not fit
It is monochrome, it has no room sensor support, no humidity control and no staging depth, and it is not intended for use outside the US and Canada. Reviewers also note fragile battery contacts, which is worth knowing if you plan to run it on batteries.
Our advice: if the gap between this and the ST55 is small for your budget, take the ST55. The Lite makes sense when the price difference is the whole decision, and you already have a C-wire run.
8. Honeywell Vision Pro 8000: Best for Three-Stage Heat Pump Systems
Honeywell TH8321WF1001 Touchscreen Thermostat Wifi Vision Pro 8000 with Stages upto 3 Heat / 2 Cool
3 heat / 2 cool staging
C-wire required
Humidity control
Wired sensor inputs
Pros
- Supports up to 3 heat / 2 cool covering complex heat pump systems
- Built-in humidity control balances temperature and moisture
- Auto changeover switches heating and cooling setpoints without adjustment
- Smart scheduling learns how long the home takes to reach set temperature
- System status reports show which stage is active
- Program Assist makes initial setup quick
Cons
- C-wire required with no battery compartment since it draws power from the transformer
- Remote indoor sensors must be wired and there is only one sensor input
- Setup menu asks many HVAC-specific questions with no auto-setup mode
- Older dated app interface
- Professional installation recommended
This is the most capable staging controller in the roundup, and the number that matters is three heat stages. If your outdoor unit is a three-stage variable speed heat pump, this is the only thermostat here whose specification explicitly covers it, and that is why installers keep recommending it.
It holds a 4.4 rating across more than 1,600 reviews, and the review pattern is unusually consistent: favored by owners of complex systems for staging, humidity control, auto changeover and system status diagnostics. Long-term owners report it has run for years without failure, which is the kind of data that rarely shows up for smart devices.
The humidity control is the sleeper feature on a heat pump. Because a heat pump both heats and dehumidifies in cooling mode, a thermostat that can coordinate humidification and dehumidification with staging keeps the system from fighting itself. Auto changeover between heating and cooling setpoints removes another manual adjustment.
Program Assist walks through initial setup, and system status reports show which stage is currently active. That visibility is genuinely useful when you are trying to work out whether your backup heat is running more than it should, because you can see the stage rather than guessing from the house temperature.
Understand the sensor limitation before you plan
Remote sensors here must be wired, and there is a single sensor input, so a multi-room setup averages together rather than choosing the most important room. That is a real limitation compared with the wireless sensor approaches elsewhere in this list, and it means running cable to each room or accepting one averaged reading.
It also requires a C-wire with no battery compartment, because it draws power from the furnace or air handler transformer. Professional installation is recommended, and the setup menu assumes you know HVAC terminology. If you are comfortable reading a wiring diagram, you will be fine. If not, budget for the service call.
Who this is for
A three-stage heat pump in a house with humidity concerns and an installer who is already coming out for annual service. This is not a gadget purchase, it is a component purchase, and the wired sensor situation and dated app are the trade for the deepest equipment control in the group.
Long-term durability reports matter here more than anywhere else in the roundup, because a thermostat on a complex heat pump system is not something you want to be rewiring in five years. Owners describe it as unremarkable, which is the best thing you can say about a device.
9. Honeywell T10 Pro: Best for Whole-Home Sensor Balancing
Honeywell Home THX321WFS2001W T10 Pro Smart Thermostat with RedLINK, White
Up to 20 RedLINK sensors
200 ft range
Pro installation
Heat pump specific
Pros
- RedLINK wireless room sensors with range up to 200 feet and support for up to 20 sensors
- Sensors report temperature
- humidity and motion activity
- Per-room priority scheduling designates which rooms drive calls
- Circulate fan mode evens out swings between heating cycles
- Can control a whole-house steam humidifier
- Oversized trim plate covers unpainted wall behind older thermostats
Cons
- Designed for professional installation and factory defaults do not work until configured
- Resideo app must be force-closed to refresh and runtime reports run three days behind
- Wi-Fi works only on the 2.4 GHz band
- Wi-Fi 6 routers not supported without a firmware update
- Highest price in this group
The T10 Pro is the only unit here listed specifically for heat pump systems rather than general forced air, and it is built around one idea: which rooms get to decide when the system runs. With up to 20 RedLINK wireless sensors reaching 200 feet, it is the most capable whole-home balancing tool in the roundup.
What separates it from the others is the sensor data. RedLINK sensors report temperature, humidity and motion activity, so the thermostat can tell the difference between a room that is cold and a room where someone actually is. Per-room priority scheduling lets you nominate the rooms that drive heating and cooling calls, which is a direct answer to a heat pump sized for the whole house but aimed at one wing of it.
Circulate fan mode runs the blower between heating cycles to move air through the house, which reduces the gap between floors without calling for more heat. The ability to control a whole-house steam humidifier is a rare capability at this level and pairs naturally with the humidity data from the sensors.
At a 4.4 rating from more than 700 reviews, the score is strong but the volume is the lowest of the established Honeywell models here, which is worth weighing. It is a specialist device for a large, complicated home.
Do not install this one yourself in a rush
Factory defaults will not run a heat pump correctly until the system is configured, and the configuration assumes an installer working from the manual. The menu is dense, and pairing RedLINK sensors to the right rooms is a task that takes planning rather than an afternoon.
The connectivity details are also sharper than the marketing suggests. Wi-Fi works only on the 2.4 GHz band, Wi-Fi 6 routers are not supported out of the box without a firmware update, and the Resideo app has to be force-closed to refresh data, with runtime reports running about three days behind.
Where the spend does not make sense
If you live in a single-story home with even heating, twenty sensors and per-room priority are solving a problem you do not have, and this is the most expensive unit in the group. The humidity and motion data is genuinely nice, but it needs the room count to justify itself.
For a large two-story home with a zoned or multi-stage heat pump, though, this is the short answer. It is the only device in the roundup designed around sensors rather than around the thermostat itself.
10. YoLink Thermostat 2: Best for Long-Range Sensor Reach
YoLink Thermostat 2, Smart Heat Pump Thermostat, YS4004
LoRa range of one quarter mile
Dual-stage control
C-wire required
Hub sold separately
Pros
- Dual-stage heating and cooling with a configurable heat pump or gas switch
- Supports up to two YS8007-UC sensors for real-time climate monitoring
- LoRa wireless range of up to one quarter mile
- Integrates with the YoLink ecosystem of 80+ sensors
- hubs and leak detectors
- Works with Alexa
- Google Home
- IFTTT and Home Assistant
- Easy DIY install for 24VAC systems with a C-wire
Cons
- Requires a YoLink hub sold separately
- Schedule limited to four time slots per day with no copy-to-all-days option
- App does not allow putting the thermostat on Hold outside the fixed schedule
- No adjustable high or low temperature alerts if the system fails
- Repeated cloud connectivity errors reported
- Only one sensor can act as the controlling source
The YoLink Thermostat 2 is the outlier in this roundup, and the reason is LoRa. Rather than Wi-Fi, it uses a long-range radio with a stated reach of up to one quarter mile, which means a sensor in a detached garage, a basement workshop or a large outbuilding can report back without a second access point.
It is built for heat pumps specifically, with dual-stage heating and cooling control and a configurable switch between heat pump and gas, which makes it one of the few units here that addresses a dual-fuel transition head on. It is a 24VAC system and needs a C-wire.
It supports up to two YS8007-UC temperature and humidity sensors, and it sits inside a wider ecosystem of more than 80 sensors, hubs and leak detectors. For someone already running YoLink hardware, that integration is the selling point. It also works with Home Assistant, IFTTT, Alexa and Google Home.
At 4.2 stars from 100 reviews it has the thinnest review base in the group by a wide margin, and that is the honest caveat. The rating is not bad, there simply is not a long ownership history to read yet, which is exactly the data people ask about when a thermostat is going onto a heat pump.
Count the pieces before you commit
The hub is sold separately, and the thermostat does not function without it. That is a meaningful addition to the total when you are comparing against a self-contained unit like the Sensi ST55, and it is the first thing to check against your budget.
The sensor story is also narrower than the numbers suggest. You can pair up to two sensors, but only one can act as the controlling source, so custom rules and averaging across sensors are not available. For a house where every room reads differently, that is a real limit.
The scheduling is the weak point
The schedule is limited to four time slots per day with no copy-to-all-days option, and the app does not let you put the thermostat on Hold outside that fixed schedule. On a heat pump, where a manual override during a cold afternoon can save you real money, that is a frustrating gap.
There are also no adjustable high or low temperature alerts if the system fails, and some users report repeated cloud connectivity errors that were only intermittently resolved. Setup is otherwise straightforward, with QR code scanning and easy 24VAC installation.
How to Configure Your Smart Thermostat for Heat Pump Duty
Which thermostat you pick matters less than how it is set up. This is the sequence that came up again and again across the heating forums we read, and it takes about twenty minutes once you know the values.
Set the system type to heat pump first. Almost every misconfiguration starts here. Until the thermostat knows about the reversing valve, it will not stage the compressor or call backup heat correctly, and the symptoms look like a broken thermostat rather than a wrong menu selection.
Set auxiliary heat lockout next. This is the temperature below which the thermostat is allowed to call electric backup heat. Owners in similar climate zones frequently run values in the low to mid thirties, and that number is the single biggest lever on your winter heating bill. Set it high and the strips run on a night when the heat pump could have handled the house on its own.
Set the compressor minimum. This is the hard floor for calling the compressor at all. Cold climate users run it much lower than mild climate users, which is why copying a setting from a neighbor in a different zone is a mistake.
Confirm staging. Make sure the thermostat knows how many heat stages your outdoor unit has. On a two-stage unit with the thermostat set to single stage, the compressor runs continuously at full output and you lose the efficiency that made you choose a heat pump.
Turn on outdoor temperature compensation if the model has it. This biases the target temperature based on outdoor conditions so the system does not overshoot on mild days and undershoot on cold ones. It is one of the quieter wins available.
Do not skip the setup step for any of these. Several products here ship with factory defaults that do not run a heat pump properly until configured, which is the main reason owners end up blaming the hardware.
Climate Zones and Where to Set Auxiliary Heat Lockout
Auxiliary heat lockout has no universal correct value, because the right number depends on how cold your winters get and how large your heat loss is. What follows is how owners and installers tend to think about it by zone.
In mild and transitional zones, the heat pump handles the great majority of heating hours, and the goal is to keep the compressor running as long as it can. Set the compressor minimum relatively high and the auxiliary lockout low, so the heat pump only steps aside when it genuinely cannot keep up.
In cold zones, users commonly run an auxiliary lockout in the low thirties and a compressor minimum in the single digits or a little above. That combination keeps the compressor working deep into the cold season, which is the entire economic argument for owning a heat pump in the first place.
In very cold zones, the compressor still runs through the coldest hours and the balance point does the deciding. Below balance point the heat pump physically cannot meet the load, so supplemental heat is not a failure of configuration, it is physics, and a thermostat that pretends otherwise will just make you uncomfortable.
Balance point itself is the outdoor temperature where heat pump capacity equals the heat loss of your house. A manual or a two-year runtime report is the usual way to find it: find the outdoor temperature at which your backup heat starts running consistently, and treat that as the neighborhood of your balance point.
Community long-term ownership reports tend to value these numbers more than any spec sheet, because they are the settings that determine whether the compressor is doing the work. Our general energy saving thermostat picks cover the scheduling side of this in more detail.
C-Wire Problems and No C-Wire Solutions
The C-wire, or common wire, delivers continuous power so the thermostat does not depend on batteries. Heat pump systems complicate this because there is more equipment to power than a simple furnace, and several models in this roundup state that a common wire is required specifically for heat pump installations.
Before you buy anything, open the existing thermostat and look at the wires. A bundle containing a labeled C or common wire means you can install almost any model on this list. A bundle without one means your choices narrow to units that ship a solution.
Power extender kits are the cleanest answer where available. Both ecobee models reviewed here include one in the box, and they work well on heat pump systems, giving the thermostat the steady power it needs while drawing from the equipment transformer. This is the option to pick if you do not want an electrician involved.
A C-wire adapter is the second option, and it is effectively the same idea without the thermostat manufacturer branding it. The third is running the wire, which is the most reliable answer and the only one that never leaves you dependent on an accessory.
The fourth option is choosing a thermostat that genuinely does not need one. The Sensi ST55 works without a C-wire in most installations and still lists heat pump support, which is why it is our top pick. Be aware that the Sensi Lite is the exception in the same family, since it requires a common wire for heat pump and heat or cool only systems specifically.
Whichever route you take, treat the wiring as part of the purchase decision rather than an afterthought. A thermostat you cannot install is a thermostat that goes in a box, and the C-wire situation is the number one reason people end up with a model they did not intend to buy.
How to Choose the Right Smart Thermostat for Your Heat Pump
Work through these in order. The questions get simpler once the first two are answered, and answering them wrong is what leads to the wrong purchase.
How many stages does your outdoor unit have? Two-stage is common, three-stage is not, and the thermostat has to match. The Honeywell Vision Pro 8000 covers up to three heat stages and the Lyric T6 Pro covers up to two. If you are unsure, the model number on the outdoor unit will tell you, and your installer can confirm it in one phone call.
What type of backup heat do you have? Electric strips are the usual heat pump backup, and that is what nearly every unit here is built for. One model in this group does not control 120-240V electric baseboard heat, so check that line if your auxiliary heat is line voltage.
Do you have a C-wire? If yes, every model on this list is available to you. If no, start with the ecobee models that include a power extender or the Sensi ST55, and confirm the requirement for your specific system type before ordering.
Is your home unevenly heated? If the thermostat sits in a hallway and the bedrooms run cold, sensors matter more than any other feature. That points to the ecobee Premium with its included SmartSensor, the Sensi Touch 2 with Sensi Room Sensors, or the T10 Pro if you have many rooms. Our smart space heater picks are the usual fix for a single stubborn room rather than a system-wide problem.
Which ecosystem do you already live in? Every unit here works with at least one major voice assistant. Apple HomeKit support appears on the Sensi ST55, both ecobee models, and the Sensi Touch 2. Sensi states it does not sell personal information, which is a differentiator for anyone who has read a privacy policy this year.
How hands-on are you? The T10 Pro and the Vision Pro 8000 both assume some HVAC knowledge, and the Vision Pro 8000 has professional installation recommended. The Sensi ST55 and Sensi Lite are the two most genuinely set-and-forget installs here, and the ST55 has a built-in level on the mounting plate for a reason.
One last thing: check the rebate situation with your utility before you buy, not after. Many providers run thermostat incentive programs, and the Honeywell model here is specifically listed as eligible for ongoing energy savings incentives with an energy provider. Rebates change more often than specifications do.
Frequently Asked Questions
Can you put a smart thermostat on a heat pump?
Yes, as long as the thermostat supports heat pump systems and the O/B reversing valve, which nearly every model on this list does. The important part is selecting heat pump as the equipment type during setup so staging and backup heat are handled correctly.
What is the best smart thermostat for a heat pump system?
The Sensi Smart Thermostat ST55 for most homes, because it lists heat pump support, needs no C-wire in most installations, and holds a 4.4 rating from more than 23,000 reviews. For a three-stage heat pump, the Honeywell Vision Pro 8000 is the better match.
At what temperature should a heat pump switch to auxiliary heat?
It depends on your climate and how quickly your house loses heat, which is why the setting is called auxiliary heat lockout. Owners in cold zones commonly run values in the low thirties, while mild climate users set it lower so the compressor runs as long as possible.
Is it okay to let the heat pump and auxiliary heat run at the same time?
Yes, and that is normal on most systems. The thermostat calls the compressor first and supplements with electric strips when the heat pump cannot meet the call. The lockout setting is what controls how often that happens.
Do I need a C-wire for a heat pump smart thermostat?
Often yes, and heat pump systems are the case where it matters most. Some models such as the ecobee Premium and Enhanced include a power extender kit, and the Sensi ST55 works without one in most installations, but the Sensi Lite requires a common wire for heat pump installs specifically.
What happens if the Wi-Fi goes down on a heat pump thermostat?
The thermostat falls back to its internal schedule and equipment settings, so heating continues, but you lose remote control and any occupancy or geofencing adjustments. Reviewers on the Sensi Lite and T10 Pro report the occasional connection drop as the most common reliability complaint.
Final Verdict
For most people buying one of the best smart thermostats for heat pumps in 2026, the answer is the Sensi Smart Thermostat ST55. It handles heat pump equipment, skips the C-wire requirement in most installs, works with every major voice assistant, and carries the largest review base in this group at a 4.4 rating.
Go to the ecobee Smart Thermostat Premium if room-by-room control and occupancy sensing are worth the extra spend, or the Honeywell Vision Pro 8000 if your outdoor unit is a three-stage heat pump. Configure the auxiliary heat lockout before you do anything else, because that setting decides whether your heat pump actually saves you money.