APOLLO Wi-Fi Electric Baseboard Heater Thermostat

The APOLLO Wi-Fi Electric Baseboard Heater Thermostat is a Wi-Fi room thermostat for electric heating and forced-air systems: electric furnaces and forced-air electric heaters, heat pumps, HVAC air handlers, and gas or oil furnaces. It provides 1-stage heating and 1-stage cooling with multi-speed fan control, running the equipment from room temperature and an adjustable differential. A 3.5-inch color touchscreen and companion app give you setpoint, schedule, and monitoring control from anywhere.

Important distinction: this is a low-voltage control thermostat — it sends a 24V-style dry-contact call through a 5A relay, rather than directly switching the high-amperage 120V/240V load a baseboard element draws. A standard hardwired electric baseboard heater is a line-voltage load, so to run one from this thermostat you connect the relay to an external line-voltage relay or contactor that switches the baseboard circuit. If you want a thermostat that switches the baseboard element directly at the wall, you need a dedicated line-voltage baseboard thermostat instead. The APOLLO's strength is smart control of electric furnaces, forced-air electric heat, and heat-pump/HVAC systems.

Yes. It connects to a 2.4GHz network (IEEE 802.11 b/g/n, WPA/WPA2). The companion app adjusts the setpoint, switches modes, and manages schedules remotely, and GEO-fence automation sets the temperature back when you leave and restores comfort before you return. Programmable scheduling covers 5/2-day, 7-day, and 24-hour programs — so it works as a smart Wi-Fi and programmable thermostat for electric heat in one unit.

The thermostat is powered by 12–24VAC/DC or 110–240VAC, so it fits both low-voltage control wiring and line-voltage supply locations. Its switching output is a low-voltage / dry-contact relay rated 5A maximum (SPST-NO), plus 0-10VDC outputs for proportional valve, damper, or fan control. Remember that the supply voltage powers the thermostat — the electric heating load itself is switched through the relay (directly for low-current control circuits, or through a contactor for a line-voltage resistive load).

Yes. A 20 ft external sensor is included and can be placed for remote room, outdoor, or radiant-floor sensing, in addition to the built-in temperature and humidity sensors. You can run on the internal sensor, the external sensor, or both, and enable external-sensor temperature shutdown as a high-limit safeguard. The thermostat also includes freeze protection and an adjustable temperature limit.

It can serve as a replacement for a range of low-voltage (12–24VAC/DC) Honeywell and Coleman RV/Camper Mach thermostats — see the replacement-compatibility list in the product description on this page. Because it is a low-voltage control thermostat, always confirm your existing thermostat's voltage, wiring, and load type before swapping: a low-voltage furnace, heat-pump, or fan-coil control is a direct fit, while a line-voltage heater load needs an external relay or contactor as described above.

Yes. The thermostat has built-in control algorithms and presets for heat pumps, HVAC air handlers, and gas or oil furnaces, and it manages multi-speed fans (3-speed or 0-10VDC) along with 1-stage heating and 1-stage cooling. That makes it a flexible room thermostat for forced-air electric and heat-pump comfort, not only standalone electric heaters.

Yes. Beyond the Wi-Fi app, it supports MQTT and BACnet — both BACnet/IP over Wi-Fi and wired BACnet MSTP — so it integrates into building management and automation systems. It's part of the APOLLO Wi-Fi thermostat platform, which also includes models for fan coil units, radiant floor heating, boiler thermostat and boiler aquastat control, pool and spa aquastat, and snow melt systems. Select the model that matches your system from the dropdown at the top of this page.