HeatIt WIFI7 – Thermostat, Wi-Fi, Bluetooth, black (5430546)

The Heatit WiFi7 is a 230 V, 16 A Wi-Fi/Bluetooth thermostat for controlling electric heating and hydronic heating systems. Its built-in relay supports a maximum load of 3600 W / 16 A with resistive loads. In addition to thermostat operation, the device can also be used as a simple ON/OFF relay or as a power regulator. For loads above 13 A, the manufacturer recommends using a contactor.

The thermostat has a built-in room temperature sensor and supports up to two additional wired external temperature sensors, for example for floor temperature and external room temperature measurement. Regulation can be based on hysteresis or PWM control, and a sensorless power regulator mode is also available. Its three main operating modes are Heat, Cool and Eco.

The Heatit WiFi7 uses 2.4 GHz Wi-Fi and Bluetooth LE communication. It can be controlled from the MyHeatit app, with weekly schedules, Home, Away, Night and Work profiles, power monitoring and remote configuration options. The local API allows the thermostat to be integrated with a local gateway, server or automation system without requiring a cloud connection. It can also communicate with other compatible Heatit devices via DirectLink and BlueFusion.

About Heatit

Heatit offers Norwegian-developed heating control and smart home products. Its range includes wall-mounted and DIN rail-mounted thermostats, Z-Wave and Wi-Fi controllers, relays, sensors, heating cables and electric heating solutions.

Depending on the model, Heatit smart thermostats use Wi-Fi, Bluetooth or Z-Wave communication. Wi-Fi-based MyHeatit products can be managed through the manufacturer's own app, while selected models can also be controlled through a local API and third-party smart home integrations.

Key product features

• Wi-Fi and Bluetooth: 2.4 GHz Wi-Fi and Bluetooth LE communication.
• Open API: Enables local integration with an external gateway, server or control system.
• Profiles: Home, Away, Night and Work profiles are available.
• DirectLink and BlueFusion: Wireless communication with other compatible MyHeatit devices.
• 14-segment LED display: Displays configured values and operating status.
• Built-in room temperature sensor: The thermostat measures room temperature using its own internal sensor.
• External room temperature sensor: A wired external temperature sensor can be connected.
• Floor sensor: A wired floor temperature sensor can be used.
• Three operating modes: Heat, Cool and Eco modes.
• Relay function: Can also be used as a simple ON/OFF switch.
• Power regulator: Can operate as a time-based power regulator without sensor-based temperature control.
• Temperature limitation: Configurable temperature limits can be set.
• Temperature calibration: The measured temperature can be adjusted.
• Hysteresis/PWM: Supports both hysteresis-based and pulse-width modulation control.
• ZeroX™ detection: The relay switches on and off at the mains voltage zero crossing.
• Open-window detection: The thermostat can interrupt heating when a rapid temperature drop is detected.
• Relay status display: The current relay state can be shown on the display.
• Adjustable display brightness: The brightness of the LED display can be adjusted.
• Single-pole switching: The thermostat uses single-pole switching.
• Child lock: Local controls can be locked.
• Overload protection: Built-in overload protection function.
• Overtemperature protection: Built-in overheating protection function.
• Google Home and Amazon Alexa: Listed by the manufacturer as smart home integrations; Amazon Alexa is also marked as a pending feature on the product page.
• Weekly schedule: A weekly schedule can be configured in the MyHeatit app.
• Active power monitoring: Provides real-time active power data.
• OTA firmware updates: Firmware can be updated wirelessly.

Smart home protocols and platform compatibility

• Wi-Fi: 2.4 GHz Wi-Fi communication for connection to the local network and the MyHeatit service.
• Bluetooth LE: Can also be used for local configuration. If Wi-Fi is not available at the installation location, the installer can configure the system via Bluetooth.
• MyHeatit: The manufacturer's own app can be used to control and monitor the thermostat and configure weekly schedules.
• Local API: A local API can be used over the Wi-Fi network. This allows the thermostat to be integrated with a compatible local gateway, server or control system without requiring a cloud connection.
• DirectLink: Can be used for direct wireless control between compatible Heatit devices.
• BlueFusion: Enables compatible Heatit devices to be linked together. One thermostat can control other units and can also be controlled from another thermostat.
• Google Home: Listed by the manufacturer as a supported integration.
• Amazon Alexa: Listed as a supported integration on the manufacturer's product page, while the feature list also marks it as “pending”.

Smart features

• Remote temperature control: The target temperature can be adjusted from the MyHeatit app.
• Heat mode: Used for thermostatic control of a heating system.
• Cool mode: Used for controlling a cooling system.
• Eco mode: Provides a separate energy-saving temperature mode.
• Weekly schedule: A weekly heating or cooling schedule can be configured in the MyHeatit app.
• Home, Away, Night and Work profiles: Different operating profiles can be configured for different usage situations.
• Open-window detection: Detects an open window based on a rapid temperature drop and can stop the heating.
• Temperature limitation: The permitted temperature range can be restricted.
• Temperature calibration: The measured temperature can be adjusted to suit the installation environment.
• Hysteresis control: The relay switches on and off based on the set temperature and configured hysteresis. Hysteresis can be adjusted from 0.3 to 3.0, with a default value of 0.5.
• PWM control: Controls heating using percentage-based ON and OFF periods within operating cycles.
• Power regulator: The thermostat can also operate as a time-based power regulator without using temperature sensors. The cycle time can be set from 0 to 30 minutes.
• Active power monitoring: The thermostat measures the active power of the connected load in real time.
• Contactor operation: When a contactor is used, the power measurement value can also be entered manually.
• Child lock: The local controls can be locked.
• Display brightness: The display brightness can be adjusted.
• OTA update: The device firmware can be updated over the network.

Electrical features

• Supply voltage: 230 V AC, 50 Hz.
• Output voltage: 230 V AC, 50 Hz.
• Maximum load: 3600 W / 16 A resistive load.
• Loads above 13 A: The manufacturer recommends using a contactor above 13 A.
• Load type: For direct switching, the thermostat is designed for resistive loads. A suitable contactor must be used for large resistive, capacitive or inductive loads.
• Switching: Single-pole relay output.
• ZeroX™ switching: The relay switches on and off at the mains voltage zero crossing, reducing switching stress.
• Power consumption: 2 W.
• Active power monitoring: The real-time power consumption of the connected load can be measured.
• Wire cross-section: 0.2–2.5 mm².
• Connection: Screw terminals.
• Maximum terminal tightening torque: 2 Nm.
• Grounding: The device does not have a grounding terminal.

Technical specifications

• Product name: Heatit WiFi7
• Article number: 5430546
• GTIN: 7071236019701
• Colour: Matt black
• Installation: European wall box, System 55
• Supply voltage: 230 V AC, 50 Hz
• Output voltage: 230 V AC, 50 Hz
• Maximum resistive load: 3600 W / 16 A
• Power consumption: 2 W
• Switch type: Single-pole
• Temperature control range: 5–40 °C
• Temperature sensitivity: ±0.5 °C
• Temperature tolerance: 0.5 °C
• Hysteresis: 0.3–3.0; default value 0.5
• Power regulator cycle time: 0–30 minutes
• Compatible NTC sensors: 6.8 / 10 / 12 / 15 / 22 / 33 / 47 / 100 kΩ at 25 °C
• Default NTC value: 10 kΩ at 25 °C
• Maximum NTC sensor cable length: 50 m
• External sensors: Up to 2 wired external temperature sensors
• Wire cross-section: 0.2–2.5 mm²
• Connection: Screw terminals
• Maximum tightening torque: 2 Nm
• Communication: Wi-Fi and Bluetooth
• Wi-Fi: 2.4 GHz
• Number of buttons: 3
• Display: 14-segment LED
• IP rating: IP21
• Certifications: LVD, REACH, RED, RoHS
• Compliance markings: CE, Nemko, UKCA
• Firmware update: OTA
• Warranty: 2 years

Additional features

• Metal mounting frame: The thermostat can be secured in the wall box using a metal mounting frame.
• System 55 compatibility: Designed for System 55 installation systems.
• Indoor use: The device is intended for indoor installation only.
• Installer configuration: The system can be configured over Wi-Fi; if Wi-Fi is unavailable, Bluetooth can be used. After installation, the property can be transferred to the end user's MyHeatit account.
• Local integration: Thanks to the open local API, basic thermostat integration does not require a cloud connection.
• Heating and cooling: In addition to Heat mode, Cool and Eco modes are also available.