Mysa V2.

The Gavler Review.

Mysa V2 Review: The Only Real Smart Thermostat for Baseboard Heat

The Mysa V2 ranks number 9 on Gavler's Best Smart Thermostats list with a 7.4 — a modest score for a product that, within its actual category, has essentially no real competition. Most of the smart thermostats crowding this list, from Ecobee to Nest to the value-tier Amazon Smart Thermostat, are built for 24V forced-air HVAC systems and simply do not function with the 120V/240V line-voltage wiring behind electric baseboard heaters, in-floor radiant electric, or fan-forced wall heaters. Wirecutter's own smart-thermostat coverage names Mysa the best pick specifically for baseboard heat. If your home runs on baseboards, this is close to the only smart thermostat option that exists at a premium tier. If it doesn't, skip it entirely — nothing here applies to you.

What it is

The Mysa V2 is a 240V-compatible smart thermostat purpose-built for line-voltage electric heating systems — a category that includes electric baseboard heaters, in-floor radiant electric heat, and fan-forced wall heaters, common across the Pacific Northwest, New England, and much of Canada. Unlike the vast majority of smart thermostats on the market, which control a low-voltage 24V signal wire that starts and stops a furnace or heat pump, the Mysa wires directly into the higher-voltage circuit that powers the heater itself.

That different electrical foundation is why installation typically requires a licensed electrician rather than the 15-minute DIY swap common with forced-air smart thermostats. In exchange, the Mysa delivers full smart-home integration that's rare in this niche — HomeKit, Alexa, and Google Home are all natively supported — plus a genuinely well-designed companion app. Multi-Mysa installations can zone an entire baseboard-heated home, treating each room as an independently controlled zone, a capability that essentially no other 240V thermostat brand offers at all.

In use

The clearest endorsement of the Mysa V2 comes from its category-defining position rather than from head-to-head feature comparisons, because there's little for it to be compared against. EnergySage's assessment gets at exactly why: "If you have electric baseboards, this is functionally your only premium option." That's a stronger and more useful statement than a typical star rating, because it reflects the actual shopping reality for a baseboard-heated home — the smart-thermostat aisle effectively narrows to one or two real choices the moment your HVAC system isn't forced-air.

TheSmartCave's review reinforces the same point from a slightly different angle: "The only smart thermostat that actually works with high-voltage line-voltage heat." Sinopé is the other established player working this same niche, but reviewers consistently note that Mysa's industrial design and app polish are meaningfully ahead — a more premium, more Apple-adjacent experience in a category that doesn't usually get that kind of attention.

The whole-home zoning capability is a genuine differentiator worth understanding clearly. Because baseboard heat is inherently room-by-room (each baseboard unit heats its own space independently, unlike a single central furnace), a multi-Mysa install effectively turns every room into its own thermostat zone — something a single central smart thermostat, even a premium one, structurally cannot replicate. For a larger baseboard-heated home, that's a real functional upgrade over the "one thermostat controls the whole house" model most smart thermostat buyers are used to.

Strengths

• Functionally the only premium option for its category. Ecobee, Nest, and Honeywell simply don't work with 240V baseboard wiring — there's no substitute among the mainstream smart-thermostat brands.
• Full smart-home ecosystem support. HomeKit, Alexa, and Google Home are all natively supported, which is unusual for this specialized a product category.
• Genuine whole-home zoning. Multiple Mysa units let every room function as an independent thermostat zone, a capability unique to how baseboard heating is wired room-by-room.
• A polished app experience. Reviewers consistently note the software feels considerably more modern than the category's other major player, Sinopé.
• 3-year warranty. Longer than the 1-year warranty typical of budget forced-air smart thermostats on this same list.

The trade-offs — who should skip it

The most important caveat isn't really a criticism of the product — it's a reminder of how narrow its applicability is. If your home runs gas, oil, a heat pump, or any forced-air HVAC system, the Mysa V2 is simply not relevant to you, full stop. Don't buy it hoping it'll work as a general-purpose smart thermostat; it won't.

For the buyers it does apply to, the cost adds up quickly. At $199 per thermostat, and a typical baseboard-heated home needing anywhere from three to six units to cover every room, a whole-home install can run well past $1,000 in hardware alone before factoring in the licensed-electrician labor most jurisdictions require for installation. That's a materially higher total investment than a single $250 forced-air smart thermostat controlling an entire house from one point, even though the per-unit price looks reasonable in isolation.

How it compares

On the same list, the Amazon Smart Thermostat at rank 8 sits at the opposite end of the spectrum entirely — a $79 forced-air thermostat built on licensed Honeywell hardware, with Wirecutter calling it "the best value smart thermostat we've ever tested." The two aren't really competitors; they're simply built for two different kinds of home heating systems, and a buyer's choice between them is dictated entirely by what's already wired into the walls rather than by feature comparison. The Wyze Thermostat at rank 10 occupies similar forced-air territory at the same $79 price point, offering a physical dial and Wyze-ecosystem integration — again, not a real alternative for a baseboard-heated home, but a useful reference point for what the rest of this list's typical buyer is choosing between.

The Gavler verdict

A 7.4 that undersells how essential this product is for the right home. The Mysa V2 isn't competing on the same axis as most of the rest of Gavler's Best Smart Thermostats list — it's solving a wiring problem that Ecobee, Nest, and Honeywell simply can't touch, and doing it with a level of app polish and ecosystem support that's genuinely rare in this specialized niche. If you live in a baseboard-heated or in-floor-radiant-electric home, the real question isn't whether the Mysa V2 is worth it against its rivals — it's whether a smart thermostat is worth it for your home at all, and if the answer is yes, this is close to your only real option. If your home runs forced-air, this review simply doesn't apply to you; look elsewhere on the list.

Common Questions

Is the Mysa V2 worth it in 2026?

If your home uses electric baseboard, in-floor radiant electric, or fan-forced wall heaters, yes — it's essentially the only premium option. It ranks number 9 on Gavler's Best Smart Thermostats list with a 7.4, and Wirecutter names it the best smart thermostat for baseboard heat in its 2025 roundup. At $199 per thermostat, and most baseboard homes needing three to six units, the total cost adds up, but there's no real forced-air-style alternative that works with this wiring.

Why don't Ecobee, Nest, or Honeywell thermostats work with baseboard heat?

Those thermostats are built for the 24V control circuits used in forced-air HVAC systems, and they physically cannot control the 120V/240V line-voltage circuits that run electric baseboard heaters, in-floor radiant electric, or fan-forced wall heaters. That's not a compatibility gap that can be worked around with an adapter — it's a fundamentally different electrical system, which is why this is a genuinely narrow category with few real competitors.

Does the Mysa V2 require a professional installer?

In most jurisdictions, yes. Because it's wired directly into a 120V/208V/240V line-voltage circuit rather than a low-voltage control wire, most areas require a licensed electrician for installation, unlike the DIY-friendly install most 24V smart thermostats offer. Factor that labor cost into the total price, especially across multiple units in a whole-home baseboard install.