The short version: Mysa’s in-floor model is a dedicated smart thermostat for electric radiant floor heating — the mats or cables installed under tile in bathrooms and kitchens, common in Canadian renovations. It’s a separate product from Mysa’s baseboard thermostat, built with a floor sensor, automatic floor-temperature capping by flooring type, and built-in GFCI protection.

Who It’s For

This model controls electric in-floor (radiant) heating: resistive mats or cables under tile, hardwood, or laminate, most often in bathrooms, kitchens, and basements. It doesn’t work with hydronic (water-based) in-floor heating, and it doesn’t control a furnace, heat pump, or baseboard heater — Mysa makes separate thermostats for those.

If you’re mid-renovation on a bathroom with a heated tile floor, or replacing a basic thermostat on an existing electric floor-warming mat, this is the right product category.

Design & Build

Same compact design as the rest of the Mysa line: a white unit with a circular LED display and a touch ring for manual adjustment, small enough to sit next to a light switch without looking out of place in a bathroom.

Setup & Compatibility

Voltage and wattage: Supports 120V and 240V systems. Maximum rated load is roughly 3,800W at 240V or about 1,900W at 120V, which covers most residential bathroom or kitchen floor-heating zones. For larger heated areas, confirm your mat’s total wattage against this limit before buying.

Floor sensor: A 15-foot floor sensor is included and installs under the flooring alongside the heating mat. In the app, you select your flooring type — tile, hardwood, laminate, luxury vinyl — and the thermostat automatically caps floor temperature at the manufacturer-recommended limit, typically around 30°C. It’s a real safety and floor-protection feature, preventing sustained overheating of flooring not rated for it.

Built-in GFCI: Class A ground-fault protection is built in, standard for a thermostat wired into a wet-location circuit like a bathroom floor.

Not compatible with: hydronic (water-based) floor heating or low-voltage systems tied to a boiler.

Installation: Floor heating is typically installed during a renovation, with the mat and sensor going in before the new floor. If you’re retrofitting onto an existing floor-heating circuit, this is line-voltage electrical work: turn off the breaker, verify power is off with a voltage tester, and follow the app’s wiring diagram. If you’re not confident with line-voltage wiring, or your province/municipality requires a licensed electrician for the swap, hire one.

App & Ecosystem

Same core Mysa app as the rest of the lineup: weekly scheduling, geofencing, and energy reporting in kWh with cost estimates. For floor heating specifically, the app adds the flooring-type selector and automatic floor-temperature cap.

Smart home support:
– Apple HomeKit: Supported
– Google Assistant: Supported
– Amazon Alexa: Supported

No hub required — it connects directly to your 2.4GHz Wi-Fi.

Buyer Feedback: What We Found

Independent, in-depth reviews specifically for Mysa’s in-floor model are thinner than for the baseboard model — it’s a lower-volume product sold mainly through Home Depot, Mysa.co, and Amazon rather than a widely reviewed category. Retailer listings and manufacturer documentation confirm the floor sensor and temperature-capping features work as described. We didn’t find a meaningful volume of independent long-form reviews or forum discussion specific to this model, so treat the pros and cons here as spec-grounded rather than backed by a large body of owner sentiment.

Rebate Eligibility

Mysa is ENERGY STAR certified, and its in-floor model has appeared on select Canadian utility qualifying lists, though eligibility for electric floor-heating thermostats specifically is less consistently listed than for central-HVAC thermostats. Verify with your provincial utility program before assuming eligibility.

See Smart Thermostat Rebates in Canada by Province for current eligibility by province.

Price & Value

Mysa In-Floor Heating
Price (CAD) ~$150–200
Warranty 2 years
Subscription None
Hub required No

Most Canadian homes buy just one unit for a single bathroom renovation, so this is a straightforward single-purchase decision compared to a multi-room baseboard rollout.

Pros & Cons

Pros:
– Purpose-built for electric floor heating, not a repurposed baseboard thermostat
– Automatic floor-temperature capping by flooring type protects the finished floor
– Built-in Class A GFCI, appropriate for bathroom/wet-location installs
– HomeKit, Alexa, and Google Assistant support with no hub
– Canadian company, Canadian support

Cons:
– Limited independent review coverage compared to Mysa’s baseboard model
– Not compatible with hydronic (water-based) floor heating
– Wattage cap (~3,800W at 240V) may not cover larger multi-zone floor-heating installs
– Rebate eligibility less consistent than for central-HVAC thermostats

The Recommendation

Buy Mysa for In-Floor Heating if you’re installing or already have an electric radiant floor-heating mat and want app control, scheduling, and automatic floor-temperature protection. Independent review volume is limited for this specific model, so confirm your mat’s wattage against Mysa’s rated load and check current rebate eligibility with your utility before buying.

Frequently Asked Questions

Does Mysa’s in-floor thermostat work with hydronic (water) floor heating?
No. It’s built for electric resistive floor-heating mats and cables only, not water-based systems.

What’s the maximum wattage this thermostat can handle?
Roughly 3,800W at 240V or about 1,900W at 120V. Check your specific floor-heating mat’s wattage rating before buying.

Does it need a floor sensor?
Yes, one is included. It installs under the flooring and lets the thermostat cap floor temperature based on the flooring type selected in the app.

Is this thermostat eligible for Canadian rebates?
Mysa is ENERGY STAR certified and has appeared on select provincial qualifying lists, but eligibility for floor-heating thermostats specifically is less consistent than for central-HVAC models. Check your provincial utility program before buying.

Does this model require a hub?
No. It connects directly to your home Wi-Fi, same as Mysa’s other thermostats.

Is this the same thermostat as Mysa’s baseboard model?
No. It’s a separate product built specifically for floor heating, with a floor sensor and floor-temperature capping the baseboard model doesn’t have.