The short version: The TH1123ZB (3000W/120-240V) and TH1124ZB (4000W/240V) are Sinopé’s Zigbee smart thermostats for electric baseboard heaters, convectors, and fan-forced convectors. They require a Neviweb-compatible Zigbee hub (Sinopé’s GT130) rather than connecting directly to Wi-Fi, but that hub is what unlocks Hydro-Québec’s Hilo demand-response program — a real, ongoing financial benefit no competing baseboard thermostat offers. For Quebec homes on 2-wire circuits, or anyone building a multi-zone Neviweb setup, this is the thermostat to start with.

Who Makes Sinopé

Sinopé Technologies is based in Saint-Eustache, Quebec, founded in 2013. The company focuses specifically on electric heating control, the dominant heating type in Quebec homes, and its Neviweb ecosystem integrates with Hydro-Québec’s Hilo demand-response platform, something Mysa’s competing lineup doesn’t offer.

Who It’s For

TH1123ZB and TH1124ZB control electric baseboard heaters, convectors, and fan-forced convectors — not central HVAC. The two models differ mainly in load capacity and voltage:

Model Max load Voltage
TH1123ZB 3000W 120/208/240V
TH1124ZB 4000W 240V

Pick based on your heater’s rated wattage: a single large 240V baseboard circuit pulling more than 3000W needs the TH1124ZB; most standard bedroom or living-room baseboard circuits fall comfortably under the TH1123ZB’s 3000W ceiling.

Design & Build

Both use Sinopé’s standard thermostat housing: a white rectangular unit with a backlit LCD showing current and set temperature, plus physical buttons for manual adjustment without opening the app. The display is larger and easier to read from across a room than Mysa’s LED ring.

Setup & Compatibility

Wiring: Both models support 2-wire and 4-wire installation. This is the key practical advantage over Mysa, which requires 4 wires. If you pull your existing thermostat’s faceplate and see only two wires, coming from an older Quebec or Atlantic Canada home, Sinopé is your smart-thermostat option without rewiring.

Heating types: Baseboard heaters, convectors, fan-forced convectors, and radiant ceilings are all supported.

Hub requirement: Both are Zigbee 3.0 devices, not standalone Wi-Fi thermostats. You need Sinopé’s GT130 Zigbee hub (the older GT125 is not compatible with these models) connected to your router and the Neviweb app. Budget an extra 15–20 minutes for hub setup the first time; each additional thermostat pairs in a couple of minutes once the hub is running.

Temperature accuracy and range: Setpoint range of 5°C–30°C with ±0.5°C accuracy.

Warranty: 3 years.

Installation: Line-voltage electrical work. Turn off the breaker, verify power is off with a voltage tester, and follow the Neviweb app’s wiring diagram. Hire a licensed electrician if you’re unsure about your wiring or your municipality requires one for the swap.

The Neviweb Ecosystem and Hilo

Once the GT130 hub is set up, the Neviweb app adds a whole-home dashboard across all connected zones, group scheduling (one schedule for all bedrooms, another for common areas), away/vacation mode that drops every zone to a minimum temperature with one tap, and per-device energy consumption reports in kWh.

Hilo (Hydro-Québec demand response) is Sinopé’s most distinctive feature. Quebec homeowners enrolled in Hilo earn bill credits for participating in peak-demand events, typically concentrated in winter. Participation requires a Sinopé Zigbee thermostat and the Neviweb hub — Hilo enrollment happens through its own app once your Sinopé hardware is set up. No competing baseboard thermostat in Canada integrates with Hilo, which makes this a concrete ongoing financial incentive for Hydro-Québec customers specifically, not a one-time rebate.

Smart Home Ecosystem

  • Amazon Alexa: Supported via SmartThings or Neviweb integration
  • Google Home: Supported via SmartThings or Neviweb integration
  • Samsung SmartThings: Supported (native Zigbee integration)
  • Apple HomeKit: Not supported on any Sinopé model. If HomeKit matters to you, Mysa is the only baseboard-category option that offers it.

Buyer Feedback: What We Found

Sinopé’s manufacturer fact sheets and support documentation for the TH1123ZB/TH1124ZB are thorough and consistent across retailer listings (Amazon.ca, Nordik Radiant, Guillevin), which is itself a signal of a mature, well-documented product line rather than a churn-prone marketplace item. We found limited long-form independent review coverage specific to these two model numbers, but general owner sentiment toward the Sinopé Zigbee/Neviweb ecosystem in Quebec forums and Reddit threads is consistent with the pattern described for competing line-voltage brands: this is considered mature, established hardware rather than an unproven newcomer.

Price & Value

TH1123ZB / TH1124ZB
Price (CAD) ~$100–160 per thermostat
GT130 hub Sold separately (one hub covers multiple thermostats)
Warranty 3 years
Subscription None

For a multi-zone home, the shared-hub model brings the per-unit cost down as you add thermostats, unlike Mysa where every unit is a full standalone purchase.

Rebate Eligibility

Sinopé’s baseboard thermostats have appeared on Énergir’s rebate qualifying list in past program years. Hydro-Québec customers get Hilo’s ongoing bill credits rather than a one-time rebate. Eligibility changes by program year — verify current qualifying lists before purchasing.

See Smart Thermostat Rebates in Canada by Province for the broader picture.

Pros & Cons

Pros:
– 2-wire and 4-wire compatible, works in older homes Mysa can’t serve
– Hilo (Hydro-Québec) demand-response integration, unique to Sinopé
– Two load options (3000W/4000W) matched to different circuit sizes
– Neviweb ecosystem scales well across multi-zone homes
– 3-year warranty

Cons:
– No Apple HomeKit
– Requires the GT130 hub — an extra cost and setup step, and a single point of failure for all connected thermostats
– Must choose the correct model (TH1123ZB vs TH1124ZB) for your circuit’s load
– Neviweb app is functional but less polished than Mysa’s

The Recommendation

Buy the TH1123ZB or TH1124ZB if you have 2-wire baseboard circuits, want Hilo demand-response integration as a Hydro-Québec customer, or are building a multi-zone Neviweb setup where the shared hub brings per-unit cost down. Choose the TH1124ZB specifically if your circuit’s rated load exceeds 3000W.

If you use Apple HomeKit or prefer not to manage a hub, see our Mysa review instead.

Frequently Asked Questions

What’s the difference between the TH1123ZB and TH1124ZB?
Load capacity. The TH1123ZB handles up to 3000W; the TH1124ZB handles up to 4000W at 240V. Match the model to your circuit’s rated load.

Do I need a hub for these thermostats to work?
Yes. Both are Zigbee devices requiring Sinopé’s GT130 hub connected to your router. The older GT125 hub is not compatible with these models.

Does this thermostat work with 2-wire baseboard circuits?
Yes. Both models support 2-wire and 4-wire installation, a key advantage over Mysa, which requires 4 wires.

Does Sinopé integrate with Hilo?
Yes, through the Neviweb hub and app. Hilo is Hydro-Québec’s demand-response program, and Sinopé is the primary baseboard thermostat brand supporting it.

Does Sinopé support Apple HomeKit?
No. No Sinopé model supports HomeKit. Mysa is the option to look at if HomeKit matters to you.

Is this thermostat eligible for Canadian rebates?
It has appeared on Énergir’s qualifying list in past program years, and Hilo provides ongoing bill credits for Hydro-Québec customers. Eligibility varies by program year — verify current lists before buying.