Line Voltage Smart Thermostat

It depends on the product. Mysa for Baseboard is generally compatible with GFCI breakers. However, Mysa for In-Floor includes its own built-in GFCI protection and should not be installed on a circuit that is already protected by a GFCI breaker to avoid nuisance tripping.

It depends on the product. Mysa for Baseboard is generally compatible with GFCI breakers. However, Mysa for In-Floor includes its own built-in GFCI protection and should not be installed on a circuit that is already protected by a GFCI breaker to avoid nuisance tripping.

Yes. Baseboard heaters use high-voltage (line voltage 120V-240V) power, so they need a thermostat made specifically to handle that electrical load directly. Regular low-voltage smart thermostats (like those used for furnaces or central HVAC) aren’t compatible and can be dangerous if connected to these systems.

That’s exactly why Mysa’s electric baseboard heater thermostat was created. It’s purpose-built for high-voltage electric baseboard, fan-forced in-wall, and in-ceiling heating systems. You can finally enjoy smart-home control, scheduling, and energy savings with the electric heating setup you already have!

They can, especially if they’re left running continuously. Electric baseboard heaters are 100% efficient at converting electricity into heat, but they can still be expensive to run if not managed properly. Factors like room insulation, window quality, and using a smart thermostat to minimize run time all influence monthly energy consumption.

Most smart thermostats aren’t designed for electric baseboard heaters - they only work with low-voltage systems like furnaces or central HVAC. But Mysa for baseboard is different. It’s built specifically for high-voltage electric heating including baseboard, fan-forced in-wall, and radiant ceiling systems.

They can, especially older mechanical thermostats. Internal bimetal strips can degrade over time, leading to temperature swings, while dust buildup or loose wire connections can cause unresponsive controls or safety hazards.

It might be time to upgrade to an electric baseboard heater thermostat if you notice any of these signs, and your search ends here at Mysa. Not only does this solve your problems, but it gives you precise digital temperature control from anywhere!

Does Mysa heat the room or just the floor?
It controls both. Choose your preferred mode in the app:

• Floor Mode: Targets specific floor surface temperature.
• Ambient Mode: Monitors air temperature to heat the room. Floor temperature limits remain active to prevent damage.

Note: You must install the floor sensor. Mysa will not operate without it.

Mysa for Baseboard can replace most single-pole and double-pole thermostats, but it functions internally as a single-pole device. It requires a connection to both power wires (L1 and L2/Neutral) but only switches the power to the heater on one of those wires (the load wire).

They can fail. Here are some signs your baseboard heater thermostat might be failing:

• Your heater doesn’t respond when you adjust the temperature on the thermostat.
• Your room feels too hot or too cold, indicating calibration drift.
• You hear clicking, but your heater doesn’t heat up; this could indicate a burnt-out heater element.
• The faceplate of your old mechanical thermostat feels too hot to the touch. (Smart thermostats like Mysa may feel slightly warm during normal operation — this is normal.)

It might be time to upgrade to our smart thermostat for electric baseboard heaters. You’ll love being able to control the heat in every room from anywhere, and our precise calibration ensures reliable, comfortable performance.

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.

With a traditional dial thermostat, you must manually turn the knob until the room feels comfortable, which is often inaccurate and leads to overheating. Mysa’s smart thermostat allows you to fine‑tune the temperature digitally from the wall or your phone, set your ideal comfort level, and create weekly schedules or make quick adjustments via the app whether at home, work, or away.

Yes. Mysa for Baseboard requires a connection to both live wires in the electrical box (L1 and L2/Neutral) to power themselves; they cannot operate on a single conductor (two-wire) setups.

However, always ensure you count the wires in the junction box, not the wires coming from the existing thermostat. Many homes have an extra wire tucked into the wall. Mysa data shows less than 10% of installations only have two wires in the junction box

No. It is a common misconception that it is cheaper to leave baseboard heaters running constantly. It is more cost‑effective to heat only when and where you need it. Baseboard heaters allow zonal heating, so leaving them running in empty rooms wastes energy. Mysa’s smart thermostat can help you save up to 20% on heating costs by enabling zoned control, smart schedules, and geolocation features.

The specific Mysa model you need depends on your heating type. Mysa for In-Floor works with high-voltage electric heating. Mysa for Central HVAC works with low-voltage (24V) thermostat and can control hydronic (water-based) floor heating.

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.

Yes, and the differences matter. Some thermostats only measure air temperature, risking damage to luxury flooring like engineered wood or vinyl. Mysa uses a floor sensor to enforce a maximum temperature limit, protecting your floor materials from overheating while ensuring consistent warmth.

It’s entirely up to you and your comfort level. Most homeowners using Mysa keep baseboard heaters around 68–72°F (20–22°C) when they’re home, and lower the temperature to 60–65°F (16–18°C) while sleeping or away. Mysa’s electric baseboard thermostat lets you create custom heating schedules and uses geolocation to automatically adjust the heat based on your lifestyle, maximizing comfort and energy savings.

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.

Mysa is designed to work with most existing sensors and floor installations and can be calibrated to work with your existing floor sensor, as long as the total wattage of your floor system is less than 3800 watts. Crucially, Mysa includes a built-in Class A GFCI, so it acts as a safety upgrade even if your old thermostat did not have on