How to Choose the Right Thermostat for Your Heating System

Electric baseboards, floor heating, central heating systems, heat pumps… There are several types of heating systems, and figuring out which thermostat is right for your setup isn't always easy.

Here are a few tips to help you identify your heating system and choose the thermostat that best suits your needs.

Thermostats for Electric Baseboards, Convectors, and Radiant Ceilings

Electric baseboards, convectors, and radiant ceilings are common electric heating systems in Canadian homes, particularly in Quebec. They typically operate at 120 V or 240 V and require a thermostat designed to control an electrical load directly.

To choose the right thermostat, you first need to check your system's voltage and the total wattage of the heating units it will control.

For example, if two 1,500 W electric baseboards are connected to the same thermostat, the thermostat must be able to handle a total load of 3,000 W.

It's also important to consider the type of heating system, as some units, such as fan-forced heaters, may require a thermostat designed for their specific operating requirements.

Which Thermostat Should You Choose?

Sinopé offers smart thermostats for electric heating that allow you to control the temperature remotely, create personalized schedules, and monitor your energy consumption through the Sinopé app. A thermostat designed specifically for fan-forced heaters is also available.

Here are a few resources to help you choose the right model:

• Compatibility Checker – Electric Heating

• Support Article – How to Determine the Required Wattage for Your Thermostat

• Blog – Wi-Fi or Zigbee: Which Should You Choose?

Thermostats for Floor Heating

Unlike electric baseboards, electric floor heating systems use heating cables or mats installed beneath the flooring to distribute warmth throughout a room.

This type of heating requires a thermostat specifically designed for floor heating, typically equipped with a floor temperature sensor.

The sensor measures and regulates the floor temperature to maintain optimal comfort while respecting the recommended temperature limits for certain flooring materials.

Which Thermostat Should You Choose?

For an electric floor heating system, choose a thermostat that is compatible with your installation's voltage and wattage, includes a floor sensor input, and provides appropriate ground fault circuit interrupter (GFCI) protection.

Sinopé's smart thermostats for electric floor heating also allow you to adjust the temperature remotely and schedule your heating according to your daily routine.

If you want to control a hydronic floor heating system, Sinopé's low-voltage thermostat is an ideal solution. This thermostat is also compatible with most hydronic heating systems, mechanical relay heating systems, and furnaces without fan control.

Thermostats for Central Heating Systems

Central heating systems distribute heat throughout multiple rooms from a single main unit. This may include an electric furnace, a gas furnace, or a central heat pump.

Unlike line-voltage electric heating systems, these installations typically use a 24 V low-voltage thermostat that communicates with the central heating equipment.

Choosing the right thermostat depends on several factors, including the type of equipment, the number of heating and cooling stages, and any accessories that need to be controlled.

Which Thermostat Should You Choose?

For a central heating system, it's important to select a thermostat that is compatible with your heating and cooling equipment.

For example, some thermostats support central heat pumps, dual-energy systems, or multistage equipment. Others can also control accessories such as humidifiers or heat recovery ventilators (HRVs).

You should also check your existing wiring, particularly whether a common wire (C-wire) is available, as some smart thermostats require a continuous power supply.

Sinopé offers several smart thermostats for central heating and cooling systems, including one model available for purchase directly online and two models available through HVAC professionals.

Here are a few helpful resources when shopping for a Sinopé central HVAC thermostat:

• Compatibility Checker – HVAC Thermostats

• Interactive Map – Find an HVAC Professional

• Blog – 3 Good Reasons to Choose a Smart Thermostat for Your Central HVAC System

Controlling a Ductless Mini-Split Heat Pump

Ductless mini-split heat pumps are often controlled using a remote rather than a traditional wall-mounted thermostat.

Unlike central heating systems, mini-split heat pumps generally use communication protocols that vary by manufacturer. As a result, it's not always possible to replace their remote control with a smart control device.

Which Solution Should You Choose?

To control a ductless mini-split heat pump with a smart device, you first need to check the brand and model of your unit to determine whether a compatible control interface is available.

Sinopé has developed control interfaces for certain mini-split heat pumps, allowing you to coordinate their operation with other heating devices. These interfaces are available exclusively through industry professionals.

Depending on the solution selected, you may also benefit from connected features that make managing your heating easier.

However, compatibility must be verified before purchasing, as not all mini-split heat pumps are supported.

Before Buying a Thermostat: What to Check

Regardless of your heating system, a few key checks will help you choose a thermostat that is compatible with your installation:

• Heating system type: Electric baseboards, floor heating, hydronic heating, central heating, or heat pump.

• Voltage: 24 V, 120 V, 208 V, or 240 V, depending on your installation.

• Heating wattage (W): Particularly important for line-voltage thermostats.

• Existing wiring: Some thermostats require specific wires or connections.

• Desired features: Remote control, schedules, energy monitoring, or automations.

If you're unsure, consult the technical documentation for your thermostat and heating system, or contact a qualified professional to confirm compatibility.