4 Top Heated Floor Thermostats in 2026: An Installer’s Take on the Top Picks
In-floor heating systems don’t run off standard thermostats — they need a dedicated line-voltage unit with floor sensor support and safety protections built in. This installer-informed guide ranks the top models on the market so you can pick the best heated floor thermostat for the job.
Every in-floor heating thermostat covered below carries a temperature sensor, supports line-voltage wiring, and includes GFCI protection. Comfortable flooring without the risk of overheating your tile or laminate. Options below.
Quick Comparison of the Best Heated Floor Thermostats
Factor | Mysa In-Floor | QuietWarmth | SunTouch CommandPlus | Schluter RS1 |
Price | $199 | $192 | $208 | $370 |
Max Load | 16A / 3,800W | 15A / 3,600W | 15A / 3,600W | 15A / 3,600W |
Voltage | 120/208/240V | 120/240V | 120/240V | 120/240V |
Floor Sensor | Included (16 ft) | Included (10 ft) | Included (15 ft) | Not included |
GFCI | Class A | Class A | Built-in | Class A |
Smart Home | HomeKit, Alexa, Google | Alexa, Google | App only | HomeKit, Alexa, Google, Control4 |
Display | LED + touch buttons | 4" color touchscreen | 4.3" color touchscreen | Touchscreen, mirror finish |
Best For | Best overall | Budget pick | Best display | DITRA-HEAT owners |
4 Top Thermostats for Heated Floors
Practical first check: not every thermostat here will work with your specific in-floor heating system. Voltage compatibility is non-negotiable, so read the specs against your system before ordering.
Past voltage, the best thermostat for heated floors depends on how much smart home integration you want, what you’re willing to spend, and a couple of secondary factors.
The 4 in-floor heating thermostats worth putting on your shortlist right now:
1) Mysa For Electric In-Floor Heating
Available at: getmysa.com, Home Depot, Amazon
Rating: 4.57/5 (275 reviews)
Why we chose it: Highest amperage, smart home support, comes with floor sensor & Class A GFCI
The load capacity is what earns Mysa the top spot from an installation standpoint — 16A of load equals 3,800W of heating at 240V. That’s 200W above every other option on this list. Higher wattage means each unit covers more floor area, which drops the total number of thermostats you need across the home.
Combine that coverage with a sub-$200 price, and the value math points here for the best heated floor thermostat rankings. A 10K ohm floor sensor with a 16-foot run comes in the box, and Mysa is backward-compatible with existing sensors between 5K and 40K ohms — useful for retrofit jobs where the old sensor is fine and you don’t want to pull new wire.
Two operating modes ship out of the box:
- Floor Mode: Targets actual tile surface temperature
- Ambient Mode: Targets the room’s air temperature.
Early On is the feature installers actually appreciate. The unit calculates the pre-heat window needed to hit your target temperature at the scheduled time. Your bathroom floor is warm when the alarm goes off, not warming up as you’re heading out the door.
HomeKit, Alexa, and Google Home all connect without an intermediate hub or bridge. From the Mysa app, you get 7-day scheduling, energy and cost tracking, and temperature alerts. Across every category that matters practically, this is the best thermostat for heated floors.
2) QuietWarmth Smart Thermostat
Available at: Home Depot, Amazon, other online retailers
Rating: 3.7/5 (16 reviews)
Why we chose it: Color touchscreen and WiFi under $200
QuietWarmth’s THERMAEGH lands as the most affordable option here — by $7. Performance is reasonable for the tier. The 4-inch color touchscreen is responsive, and the scheduling structure splits the day into four events:
- Wake
- Away
- Home
- Night
Adaptive start times the pre-heat so floors hit the target temperature exactly when each event begins — same core concept as Mysa’s Early On. Set Wake for 6:30 AM and the system starts working when it needs to, so you’re stepping out of bed onto warm floors.
Alexa and Google Home are supported. Apple HomeKit isn’t. Not a dealbreaker unless the household runs entirely on iOS. The 15A rating at 120V or 240V is standard, but from an install perspective the 10-foot sensor is short — measure the run twice before you buy.
3) SunTouch SunStat CommandPlus
Available at: Home Depot, Lowe’s, Amazon, SunTouch website
Rating: 4.2/5 (21 reviews)
Why we chose it: Biggest display, auto-detects voltage
For installations where display size is the priority, SunTouch takes the lead. The 4.3-inch full-color screen mounts in either portrait or landscape orientation.
The other reason it earns a spot on this best heated floor thermostat list is the auto-voltage detector. The unit determines whether the system runs on 120V or 240V without any manual configuration — which saves time on install and eliminates one common source of setup error.
The trade-off is voice assistant support, which is thin. WiFi and the Watts Home app cover remote scheduling. But Alexa, Google, and HomeKit are all missing. To unlock voice commands and automation, you’d have to step up to the ConnectPlus model at nearly $275.
4) Schluter Ditra-Heat-E-RS1
Available at: Home Depot, Lowe’s, Schluter website
Rating: 4.8/5 (4 reviews)
Why we chose it: Purpose-built for DITRA-HEAT systems, Control4 compatible
The most expensive option here by a real margin. But the Schluter Ditra-Heat-E-RS1 still has a legitimate claim to the best thermostat for heated floors title in specific setups. What justifies the premium?
Mirror-finish faceplate, geofencing, and scene creation for coordinating multiple thermostats across zones. Control4 integration also, which becomes relevant if you’re automating whole-home comfort. HomeKit, Alexa, and Google are all supported.
At nearly $350 (depending on retailer), the annoying discovery is that floor sensors are sold separately. An existing sensor may work if it hits the 10K resistance spec.
The other potential dealbreaker is the app itself — a common complaint in customer reviews. Overall ratings sit high, but negative feedback almost always circles back to the app experience.
Which is the Best Heated Floor Thermostat For YOUR Home or Business?
Mysa is a confident pick as the best heated floor thermostat. But there are a few things to double-check before ordering anything. Voltage is first.
Voltage
Most household in-floor electric systems land on 120V or 240V. All four thermostats compared here handle both. Commercial buildings frequently run on 208V, though — and Mysa is the only option in this comparison that supports 208V.
Smart Home Integration
Adjusting by voice or through automations is effortless once your heating schedule is routed through Alexa or HomeKit. Mysa and Schluter cover all three major platforms. QuietWarmth is missing HomeKit. The SunTouch CommandPlus has no voice command support at all.
Amperage
Amperage sets the ceiling on how much floor a single thermostat can cover. Everything else here caps at 15A, but Mysa gives you slightly more headroom at 16A — which matters when your mat or cable system pulls near 15A, and you want a safety buffer.
Value
Not the lowest sticker price, but the best overall value. That’s either the Mysa In-Floor unit or the QuietWarmth Smart Thermostat. Both land under $200 and cover the basics needed to run in-floor heating seamlessly.
Mysa pulls ahead, though. Much stronger review scores. Longer sensor lead. 16A instead of 15A. The display feels more upscale and easier to navigate. And Mysa is backed by a 5-year limited warranty, so ordering it doesn’t require crossing your fingers.
Frequently asked questions
Do you need a special thermostat for infloor heating?
Yes. In-floor heating systems require floor sensor inputs and higher wattage capacity. The best heated floor thermostat supports line voltage and includes built-in GFCI to shut everything down automatically if a ground fault is detected.
What types of thermostats work with underfloor heating?
A line-voltage smart thermostat with a dedicated floor sensor port is what actually reads the floor temperature. GFCI is required as a safety measure.
What are the best underfloor heating thermostats?
Mysa’s in-floor heating thermostat outperformed the others we tested. It takes the #1 pick because it checks more of the boxes that matter — system compatibility, ease of use, intuitive control, smart home integration, and value for the money.
