Best Smart Thermostats for Electric Baseboard Heating in Canada (2026)

If you have electric baseboard heating and you’ve been eyeing a Nest or an ecobee, they won’t work, and wiring one in can be dangerous. Baseboard heaters run on high-voltage (line-voltage) power, and Nest, ecobee, Honeywell, and almost every other popular smart thermostat are built for low-voltage central systems. For a Canadian home heated by baseboards, the two smart thermostats worth buying are Mysa and Sinopé (both Canadian companies that build for line-voltage heating).

This guide explains why the popular brands don’t fit, what to look for in a line-voltage model, and which one is right for your home.

Why most smart thermostats don’t work with baseboard heating

The issue comes down to voltage. There are two different kinds of heating control:

Low-voltage (24V) systems run a furnace, central air, or a heat pump. The thermostat is a low-power switch that tells a separate appliance what to do, sipping a tiny amount of power through thin wires labelled R, C, W, Y, and G. Nest, ecobee, Honeywell, and the rest are all built for this world.

Line-voltage (120V or 240V) systems are electric baseboard heaters, convectors, fan-forced heaters, and radiant ceilings. Here the thermostat sits in the path of the full household current that heats the element. There’s no separate furnace; the thermostat is the switch carrying real power. That demands a thermostat engineered to handle the load.

Put a low-voltage thermostat on a 240V baseboard circuit and at best it won’t power on; at worst you create a fire hazard. Line-voltage and low-voltage thermostats are different categories of device. That’s why Mysa and Sinopé exist.

Electric baseboard heaters are already 100% efficient at turning electricity into heat, worth knowing before you spend anything. A smart thermostat doesn’t make the heat cheaper to produce; it saves money by running the heater less, through scheduling, setbacks, and geofencing. We’ll come back to what that’s worth.

What to look for in a line-voltage smart thermostat

Before comparing models, these are the things that matter for baseboard heating:

Voltage and wattage match. Your thermostat has to handle your heater’s load. Most line-voltage smart thermostats top out around 3,800W at 240V (roughly 1,900W at 120V). Add up the wattage of every heater the thermostat will control and stay under its limit.

Your wiring. This is the detail that trips people up. Some models need four wires in the box (a neutral or a second live wire) to power themselves; a few work with two-wire setups. If you have an old two-wire installation, your options narrow. Check before you buy.

Wi-Fi vs. hub. Some thermostats connect straight to your home Wi-Fi. Others use Zigbee and need a small gateway (hub) plugged into your router. Hubs add a step but can unlock a fuller smart-home ecosystem.

The app and the features that save money. Scheduling, geofencing (heat only when someone’s home), and energy reporting are where the savings come from. A good app is the whole point.

No forced subscription. The best models include every feature in the purchase price. Watch for anything that paywalls scheduling or remote control.

Whole-home cost. Baseboard homes often have a thermostat in every room. At one unit per zone, the per-thermostat price multiplies fast, so factor that into your budget.

Rebate eligibility. Some rebate and utility programs accept line-voltage models; many are written for central-HVAC systems only. More on this below.

Best overall: Mysa Smart Thermostat for Baseboards

For most Canadian baseboard homes, Mysa is the easiest recommendation. It’s a St. John’s, Newfoundland company that has built its whole identity around line-voltage heating, and it shows in how simple the product is.

Mysa for Baseboards works with 120V and 240V electric baseboards, convectors, fan-forced heaters, and radiant ceilings, handling loads up to 1,900W at 120V or 3,800W at 240V. It connects to your Wi-Fi (no hub required) and works with Apple HomeKit, Alexa, and Google Home. The app is free forever, with no subscriptions: scheduling, remote control, voice control, and runtime reports are all included. Units carry a 2-year warranty; verify the current warranty period on Mysa’s site at time of purchase.

There are two versions. The V2 adds built-in energy monitoring and a humidity sensor with an adaptive display. The Lite strips it back to the essentials (remote control and scheduling) at a lower price. For most people the Lite covers the core savings features; the V2 is for those who want per-room energy data.

The one catch: Mysa needs at least four wires in the box (a neutral or a second live wire). It does not work with two-wire installations. The vast majority of homes have four or more wires (often tucked and capped inside the box), but verify yours with Mysa’s online compatibility checker before ordering.

Best for: most baseboard homes that want the simplest, cleanest setup with no hub and no subscription.

Best for a full smart-home ecosystem: Sinopé

Sinopé is a Quebec company, and it’s the go-to in much of la belle province for good reason. Mysa optimizes for simplicity; Sinopé optimizes for flexibility and for building out a whole connected home.

Sinopé’s line-voltage thermostats control the same heater types (baseboards, convectors, fan-forced convectors, radiant ceilings) and come in multiple wattage ratings (commonly 3,000W and 4,000W versions) so you can match bigger heaters. They come in two flavours:

• Wi-Fi models connect straight to your router with no hub, and integrate with Google Home, Alexa, and Apple Home. This is the simplest route and the closest in spirit to Mysa.
• Zigbee models need Sinopé’s GT130 gateway (or a compatible Zigbee hub). That’s an extra piece of hardware, but it unlocks the full Neviweb app and lets your thermostats join a mesh network alongside Sinopé’s switches, outlets, and water-leak sensors, building a genuine whole-home system.

Two Sinopé advantages stand out. First, some models work with two-wire installations, which can be a lifesaver in older homes where Mysa’s four-wire requirement is a dealbreaker. Second, the Éco Sinopé feature in Neviweb ties into utility energy-efficiency and dynamic-pricing programs, useful if your provider runs a demand-response or peak-savings program you can earn from.

The trade-offs: the Zigbee route adds a hub and a steeper learning curve, and getting the most out of Sinopé means committing to the Neviweb ecosystem.

Best for: Quebec homes, anyone who wants to build a broader Sinopé/Neviweb smart home, and older homes that need a two-wire-compatible option.

Mysa vs. Sinopé: the quick verdict

Both are excellent, Canadian-made, and purpose-built for baseboard heating. The choice usually comes down to this:

• Choose Mysa if you want the simplest possible setup: Wi-Fi, no hub, one clean app, energy and humidity sensing on the V2.
• Choose Sinopé if you want a wider smart-home ecosystem, multiple wattage options, two-wire compatibility for an older home, or you’re in Quebec and want Éco Sinopé’s utility-program perks.

We go deep on this head-to-head (display, multi-zone cost, app, and ecosystem) in Mysa vs Sinopé: Which Line-Voltage Thermostat Wins?

What if you have a mix of baseboard and central heating?

Some homes run baseboards in a few rooms (basements, additions, bedrooms) and a furnace or heat pump elsewhere. There’s no single thermostat that does both; line-voltage and low-voltage are separate worlds. You’d use a line-voltage model (Mysa or Sinopé) on the baseboard zones and a low-voltage model (ecobee, Nest) on the central system. If you want everything in one app, Sinopé also makes a low-voltage thermostat that lives in the same Neviweb ecosystem, which can keep a mixed home unified.

Not sure what you’ve got? Our Smart Thermostat Compatibility guide walks through how to identify your system.

How much can a smart thermostat actually save on baseboard heating?

Mysa advertises savings of up to 26%, a figure that gets quoted a lot. Baseboard heaters are already 100% efficient at converting electricity to heat, and a smart thermostat can’t change that. The savings come from heating less: dropping the temperature overnight and while you’re out, heating only occupied rooms, and using geofencing so the system isn’t warming an empty house.

That means your real-world savings depend on your habits. If you already turn heaters down by hand when you leave, the gains will be modest. If you run baseboards at a fixed temperature around the clock (common, because old dial thermostats make scheduling a pain), the savings can be substantial: automated setbacks do work you were never doing. Per-room control matters too. There’s no reason to heat a spare bedroom to the same temperature as your living room.

A sensible way to think about payback: at $130–$200 per thermostat, savings from disciplined scheduling on a heavily-used zone often recover the cost within a heating season or two, faster if a rebate covers part of the purchase.

Are there rebates for baseboard smart thermostats in Canada?

Sometimes, but read the fine print. Many Canadian rebate programs are written around ENERGY STAR-certified central-HVAC thermostats, and line-voltage baseboard models don’t always appear on the qualifying list. That said, some provincial and utility programs do cover them, and utility demand-response or dynamic-pricing programs (the kind Sinopé’s Éco Sinopé plugs into) can pay you for participating regardless.

Because eligibility varies by province and utility, and changes often, check your specific program before you buy:

• Smart Thermostat Rebates in Canada: Guide by Province
• Quebec Rebates (Énergir / Hydro-Québec) (relevant for most Sinopé buyers)
• Ontario Rebates (Enbridge / Home Renovation Savings)

The golden rule: confirm your exact model is on the program’s qualifying list before purchasing, and keep your itemized receipt.

Installation and safety: the 240V part

Line-voltage thermostats connect to the full power running to your heater, so installation deserves more respect than a low-voltage swap. A few essentials:

• Always turn off power at the breaker and confirm it’s off with a voltage tester before touching any wires.
• Most line-voltage smart thermostats need four or more wires in the gang box. If you have only two, that location can’t power a smart thermostat (though extra wires are often capped and tucked inside, so check carefully).
• Installation must comply with your local and national electrical codes, and some jurisdictions require a licensed electrician for line-voltage work.

Mysa’s app walks confident DIYers through it in about 15 minutes, and Sinopé’s install process works much the same way. If you’re unsure about handling high-voltage wiring, hire a pro. Our Smart Thermostat Installation: DIY vs Hiring a Pro guide covers what to expect, including costs.

Frequently asked questions

Do baseboard smart thermostats need a C-wire?
No. The “C-wire” is a low-voltage (central HVAC) concept and doesn’t apply here. Line-voltage thermostats wire in line with your heater. They often need a four-wire setup instead (a neutral or second live wire) to power themselves. See Do I Have a C-Wire? for the low-voltage side.

Can one thermostat control more than one baseboard heater?
Yes, as long as the combined wattage of all the heaters stays under the thermostat’s maximum load (e.g., 3,800W at 240V for Mysa). Heaters are wired in parallel, but mind the box fill and call an electrician if the gang box gets crowded.

Do they work without Wi-Fi or a subscription?
The thermostat still heats your home without Wi-Fi; you lose remote/app control until it reconnects. Neither Mysa nor Sinopé charges a subscription; all core features are included.

Will a Nest or ecobee ever work with my baseboards?
No, not safely. They’re low-voltage devices and aren’t designed to carry line-voltage loads. For baseboard heating, stick with a purpose-built line-voltage model.

How much will it cost to do my whole house?
Budget per zone. Baseboard homes often have a thermostat per room, so a five-room home means five thermostats. That’s the biggest cost factor, so prioritize the rooms you heat most if you’re phasing it in.

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Have electric baseboard heating and a specific question we didn’t cover? Check our baseboard heating hub or the Mysa vs Sinopé comparison for a deeper head-to-head.