NodOn Zigbee Pilot Wire Heating Module Review: Smart Control for Pilot-Wire Electric Heating
The NodOn Zigbee Pilot Wire Heating Module (SIN-4-FP-21) is a concealed 230V module that retrofits a pilot-wire electric heater with Zigbee control, letting a hub drive the heater's Comfort, Eco, Frost Protection and Off orders automatically. It handles up to 3680W, measures instantaneous power and cumulative energy, and doubles as a Zigbee router because it is mains-powered. It needs a Zigbee coordinator such as Home Assistant with Zigbee2MQTT and has no Matter or Apple Home path, so it suits homes already built around Zigbee, mainly where pilot-wire heating is standard.
- Pilot-wire electric heaters
- Home Assistant and Zigbee2MQTT households
- Automating heating room by room
- Tracking the energy use of electric heating
One relay per circuit you automate.
Buy on Amazon ItalyCheck pricePros
- Pilot-wire control with six heating orders: Comfort, Comfort -1°C, Comfort -2°C, Eco, Frost Protection and Off
- Handles up to 3680W at 230V AC with a 16A switching capacity
- Built-in metering of instantaneous power and cumulative energy
- Doubles as a Zigbee router that strengthens the mesh
- Over-the-air firmware updates
- Compact 40 x 40 x 16.9 mm module that fits a standard flush box
- Home Assistant and Zigbee2MQTT support
Cons
- Needs a Zigbee hub or coordinator; there is no Wi-Fi radio
- Requires a neutral wire at the installation point
- For pilot-wire electric heaters only; no dry contact mode
- No Matter and no Apple Home support
- Panel installation needs the optional NodOn DIN Rail Box accessory
- IP20 indoor module, with protection features the manufacturer does not publish
Who is the NodOn Zigbee Pilot Wire Heating Module for?
This is a module for anyone with an electric heater that uses a pilot wire, the control line common in French electric heating, who wants to drive it from a smart home system instead of a manual programmer. It hides behind the heater's cable outlet or in a flush box, so no wall switch or panel space is needed, and with the optional NodOn DIN Rail Box it can also live in the electrical panel. Because it is a Zigbee 3.0 device, it fits households that already run a coordinator such as Home Assistant with Zigbee2MQTT, Jeedom or another compatible gateway, rather than a Wi-Fi-only setup.
What the NodOn Zigbee Pilot Wire Heating Module offers
The module switches a heater rated up to 3680W at 230V AC, with a 16A switching capacity, and it drives the standard pilot-wire orders: Comfort, Comfort -1°C, Comfort -2°C, Eco, Frost Protection and Off, so a hub can set the room's heating mode on a schedule, on presence, or when a window opens. It also meters instantaneous power and cumulative energy, which is what turns heating automation into measurable savings, and it reports the pilot-wire mode back so the current order is visible in the app. Being permanently powered, it acts as a Zigbee router that strengthens the mesh. Setup, wiring and updates are covered by NodOn's user guide and OTA firmware updates, and it measures just 40 x 40 x 16.9 mm at 34 g, small enough to disappear into a standard box.
What to know before you buy
This is a Zigbee device with no Wi-Fi radio, so it needs a compatible coordinator and will not work on its own. It requires a neutral wire at the installation point, and it is built for pilot-wire electric heaters rather than dry-contact jobs: it cannot open a gate, fire a boiler or switch a potential-free circuit, which is what the separate NodOn multifunction module is for. There is no Matter support and no native Apple Home path, and the module's official gateway list is built around Zigbee ecosystems such as Home Assistant, Zigbee2MQTT, Jeedom and Homey rather than the big voice assistants. It is an IP20 indoor module, rated for -20 to 40°C in the open air but only -20 to 35°C inside a flush box, and its protection features beyond that are not published by the manufacturer.
Is the NodOn Zigbee Pilot Wire Heating Module worth it?
For a pilot-wire electric heater, it packs the two things that usually force a bigger purchase: proper pilot-wire control over all six heating orders and built-in energy metering, in a module that hides in the existing wiring. It is the practical pick for automating electric heating room by room in a home that already runs Zigbee and Home Assistant. Anyone who needs dry contacts for a boiler or gate, or who wants an Apple Home or Matter path, should look at the multifunction module or a Matter relay instead, but for local Zigbee control of pilot-wire heating this does the job cleanly.
Frequently asked questions
Does the NodOn Zigbee Pilot Wire Heating Module need a hub?
Yes. It is a Zigbee 3.0 device with no Wi-Fi, so it needs a compatible coordinator or gateway such as Home Assistant with Zigbee2MQTT, Jeedom or another gateway NodOn lists. It does not connect on its own.
Does it need a neutral wire?
Yes. It is powered from 230V AC and wired with line and neutral terminals plus the pilot-wire connection to the heater, so a neutral wire must be available where it is installed.
Can it control a boiler, gate or garage door?
No. This module is dedicated to pilot-wire electric heaters and offers no potential-free (dry contact) output. For boilers, gates and electric latches NodOn's multifunction module is the one that provides a dry contact.
Does it measure energy use?
Yes. It meters instantaneous power in watts and cumulative energy in watt-hours for the connected heater, so energy use can be tracked in the hub.
Does it work with Apple Home or Matter?
No. It has no Matter support and no native Apple Home path. It works with Zigbee ecosystems such as Home Assistant and Zigbee2MQTT.
How much heating power can it handle?
It is rated for heaters up to 3680W at 230V AC, with a 16A switching capacity.

