Holiday Sale

Mysa For Electric In-Floor

Smartphone control, smart scheduling, and electricity tracking for electric in-floor heating

$199.00
Holiday Sale
$189.00 At checkout

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Pricing details
  • Mysa for Electric In-floor Heating × 1 $189.00
  • Holiday Sale -$10.00
$189.00$10.00 Off

What you get with Mysa’s electric floor heating thermostat

Meet Mysa for In-Floor - The ultimate smart WiFi thermostat for high-voltage electric in-floor heating. Works with mats, cables, and mesh systems and installs in 15 minutes. Keep your existing floor sensor - Mysa supports 5–40 kΩ probes and calibrates automatically. Includes built-in Class A GFCI protection. Adjust temperature from work or vacation using the free app, or use voice commands with Apple HomeKit, Alexa, and Google Home. Set schedules to match your routine and save up to 26% on heating bills.

speaker_phone Remote Control
calendar_check Custom Scheduling
area_chart Energy Charting
acute 15min Install
energy_savings_leaf Save up to 26%
voice_selection Smart Home Assistants

Step up to ultimate comfort with an in-floor heating thermostat from Mysa

Works with most high voltage electric in-floor heating systems. Lets you keep your existing floor sensor in place. Works with existing floor sensors from 5–40 kΩ and can be calibrated during setup. Includes built-in Class A GFCI protection

Power Requirements

  • Max Load: 16 Amps
  • 3,800 Watts @ 240V
  • 1,900 Watts @ 120V
  • Install on 20A breaker

Floor Temperature Limits
Safe for hardwood, laminate, and luxury vinyl flooring when installed to code. Select your floor type in the app during set up to increase max floor temperature to 40°C (104°F). Floor sensor must be installed for operation of the thermostat.

Not Compatible

  • Hydronic (water-based) in-floor loops are not controlled directly by this thermostat. For hydronic systems, use Mysa for Central HVAC with a low voltage thermostat that controls your boiler.
  • Replacing Class B GFCI thermostat, and must be installed as the only GFCI device on the circuit.

Dimensions
Height: 5.1 in (129 mm)
Width: 3.5 in (88 mm)
Depth: 0.8 in (20 mm)

Display
LED display with touch buttons
Up/down temperature controls

Sensors & Control
Temperature accuracy: ±0.5 °F (±0.3 °C)
Humidity accuracy: ±2% RH
Floor sensor input: supports 5–40 kΩ thermistors

Wireless Connectivity
Wi ‑Fi 2.4 GHz (802.11 b/g/n)
Bluetooth Low Energy (BLE)

Power & Compatibility
Compatible with most high-voltage electric in-floor heating systems and flooring types Includes 10 kΩ floor sensor (16 ft / 5 m cable)
Works with existing floor sensors from 5–40 kΩ
Floor type selection with maximum floor temperature limit
Fits standard single-gang box
Must replace a Class A GFCI thermostat (5 mA)

Max Load
16 A 1,900 W @ 120 VAC
3,800 W @ 240 VAC

Certifications
UL 60730 CAN/CSA‑E60730

Our return policy is simple. High utility bills will never return. But if you do need to send your Mysa back, that's simple too - free shipping both ways and expert support at every step.


You expect a smart thermostat to last. After a million units and years of engineering refinement, we know ours do. That's why every Mysa comes with 5-year coverage - more than double the 2-year industry standard.

What's in the box

Features

other_houses Multi-Home
home_pin Auto Home / Away Temperature
family_group Shared App Access
analytics Monthly Energy Report
area_chart Energy Charting
brightness_6 Auto Brightness
dew_point Temperature / Humidity Alerts
wifi Wifi Connection
share_location Geofencing
in_home_mode Smart Home Control
calendar_check Custom Scheduling
speaker_phone Remote Control

Control from Anywhere

"The 4 best smart thermostats of 2025"

~ Wirecutter / New York Times

"Works as expected…finally got rid of the junky 1980’s thermostat that only heated to the max temp"

~ Derek F.

"Does a better job than the other smart thermostats I've used and the app gives you all the information you need to make the best use of your home heating dollars."

~ Ian V.

"The step by step guide really help to make things easier for first time installer like me.”

~ Chris L.

"Mysa support team is awesome; Leigh helped with the installation and made the whole process smooth.”

~ Anmol A.

"Reliable, beautiful, and clearly improved”

~ La Presse

Frequently asked questions

Can I control all my Mysas in the same app?

Yes. Control everything from the one app. Manage baseboard heating, ductless mini-splits, central HVAC, and electric in-floor heating in one place.Set unique schedules for each thermostat, and in the future group them all together for seamless control.

Does it require Wi-Fi?

Yes. Mysa needs a 2.4 GHz WiFi connection to enable remote control, voice commands, smart home integration, and app-based features like energy reports . Without WiFi, the thermostat still regulates temperature using manual controls on the device itself, but you lose all smart functionality. Make sure your WiFi signal reaches the thermostat location before installation

Does Mysa have a microphone or speaker?

No. It's a thermostat, not a listening device. We believe those experiences are best left to a smart home speaker that's likely updated more often than your thermostat.

Does Mysa sell my data?

No. We sell thermostats. That's how we make money. Full stop.

How long do underfloor heating thermostats last?

10 years or more, depending on use and environmental conditions. But older thermostats lose accuracy over time, leading to temperature swings/inefficiency. Even if yours still "works," it could be worth upgrading to our electric floor heating thermostat.

Is Mysa safe for hardwood, laminate, or luxury vinyl flooring?

Yes. Select your floor type in the app during setup to activate Smart Limit Protection. Mysa automatically caps floor temperature at 30°C (86°F) (or your manufacturer's limit) to prevent warping or fading.

What is Mysa?

Smart thermostats built for every system in your home. We help you save energy and maintain a comfortable home. With its user-friendly app, you can control your heating or cooling systems from anywhere.

Will Mysa allow my bathroom tile to get hot enough?

Yes. Select Tile or Stone mode to unlock higher thermal limits. Mysa allows your floor system to reach 40°C (104°F), ensuring tiles feel warm even on cold mornings.