Nobø Ecohub

The Nobø Ecohub integrationIntegrations connect and integrate Home Assistant with your devices, services, and more. [Learn more] connects Home Assistant to your Nobø Ecohub, a Norwegian heating controller from Glen Dimplex Nordic AS. The hub manages electric panel heaters, floor heating, and on/off receivers grouped into zones, and lets you follow weekly heating schedules with eco, comfort, and away setpoints.

With this integration, you can control your heating zones, switch between week profiles, and read temperatures from any connected Nobø Switch—all locally over your network, without depending on a cloud service.

This integration is not officially supported or endorsed by Glen Dimplex Nordic AS, and the authors and maintainers are not official partners of Glen Dimplex Nordic AS.

How you can use this integration

The Nobø Ecohub is mainly used in homes and cabins with electric heating in the Nordic region. Typical things you can do with this integration are:

• Control heating zones directly from your dashboard, with the same eco, comfort, and away presets you have in the Nobø Energy mobile app.
• Switch the active week profile for a zone from an automation. For example, switch a cabin to its weekend profile when you leave for a trip on Friday.
• Trigger a global override (such as away or eco) when everyone leaves home, and clear it again when someone returns.
• Use the temperature reading from a Nobø Switch as a trigger in your automations, or display it on a dashboard alongside other room sensors.
• Coordinate the Nobø heaters with other heat sources, such as a heat pump, by switching presets or week profiles based on outdoor temperature, electricity price, or solar production.
• Turn heaters fully off in a zone, for example to switch off cabin heating outside of the heating season. See Turning a zone fully off for the recommended approach.

Supported devices

The integration is built around the Nobø Ecohub and supports the devices that the hub itself manages:

• Nobø Ecohub: The bridge between your Nobø system and Home Assistant. Each zone you have configured in the hub is exposed in Home Assistant.
• Heaters and on/off receivers: Floor and wall-mounted heaters, and any on/off receivers in a zone, are controlled through their zone’s climate entity. Heaters with a built-in thermostat that supports remote control let you change the zone’s eco and comfort temperatures from Home Assistant.
• Nobø Switch (SW4): Exposed as a temperature sensorSensors return information about a thing, for instance the level of water in a tank. [Learn more]. If the switch is linked to a zone in the Nobø Energy app, its temperature is also shown as the current temperature of that zone.

Individual heaters, switches, and zones must be added and configured using the Nobø Energy mobile app. Home Assistant reads whatever the hub already knows about.

Each zone is added as a device in Home Assistant, and its zone name is offered as a suggested area. You can accept the suggestion to group the zone’s entities with the rest of that room, or pick a different area.

Prerequisites

Before adding the integration, make sure the following is in place:

• Your Nobø Ecohub is powered up and connected to your network.
• Your zones, heaters, and any Nobø Switches are set up in the Nobø Energy mobile app, and you can control them from the app.
• You know the last 3 digits of your hub’s serial number. The full 12-digit serial number is printed on a label on the back of the hub.
• If your hub is on a different network than Home Assistant, for example on an IoT VLAN, make sure that network is routable from Home Assistant and that you know the hub’s IP address.

Configuration

To add the Nobø Ecohub hub to your Home Assistant instance, use this My button:

Nobø Ecohub can be auto-discovered by Home Assistant. If an instance was found, it will be shown as Discovered. You can then set it up right away.

In most cases, the hub is discovered automatically on your network, and you only need to enter the 3-digit serial number suffix. If the hub is not discovered, choose Manual in the device list and enter the full 12-digit serial number together with the hub’s IP address.

Reconfiguration

You can update the IP address without removing and re-adding the integration.

This is useful when:

• The hub has moved to a new network and the stored IP address no longer reaches it.
• You want to switch between internal and external addresses (for example, when the hub is reachable on multiple subnets).

1. Go to Settings > Devices & services.
2. On the Nobø Ecohub integration, select the three dots menu and choose Reconfigure.
3. Enter the new IP address.
4. Select Submit to save.

Configuration options

The integration provides one configuration option that you can change later under Settings > Devices & services by selecting Configure on the Nobø Ecohub entry:

Supported functionality

The integration creates entities for every zone in the hub, a global override selector for the hub itself, and a temperature sensor for every Nobø Switch and thermostat that reports a temperature.

Climate entities

Each zone in your hub is exposed as a climate entity. You can use it to set the HVAC mode, change the preset, and adjust the eco and comfort target temperatures.

• HVAC modes:
  • Auto: The zone follows the active week profile. The preset reflects the state the zone is currently in.
  • Heat: The zone is overridden and stays in the selected preset (away, eco, or comfort) until the override ends.
  • Off: Shown only when the current week profile sets the zone to off. You cannot select this mode manually. See Turning a zone fully off.
• Presets: None, Comfort, Eco, and Away. In Away, the setpoint is fixed at 7°C for frost protection and cannot be changed, and any on/off receivers in the zone are switched off.
• Target temperatures: Eco (low) and comfort (high) setpoints, between 7°C and 30°C, in steps of 1°C. You can change these setpoints on any zone, but a new value only takes effect if the zone contains a thermostat that supports remote control of its eco or comfort temperature.

The HVAC mode and preset are linked, so a change to one updates the other:

• Selecting a preset of Away, Eco, or Comfort switches the HVAC mode to Heat.
• Selecting preset None switches the HVAC mode to Auto and updates the preset to match the active week profile.
• Selecting HVAC mode Auto clears the override and updates the preset to match the active week profile.
• Selecting HVAC mode Heat sets the preset to Comfort.

Select entities

• Week profile: Per zone. Lets you change which week profile is active. Week profiles must be created and edited in the Nobø Energy mobile app. The selector lists the profiles the hub currently knows about.
• Global override: One per hub. Overrides every zone (except zones that are configured in the Nobø Energy app to ignore the global override) to the selected preset. The available options are None, Away, Eco, and Comfort. The global override uses the same override type as preset changes.

Sensor entities

• Temperature: One per device that reports a temperature, such as a Nobø Switch (SW4) or a thermostat with a temperature sensor. The reading is in degrees Celsius. If the device is linked to a zone, the same temperature is also shown as the current temperature on that zone’s climate entity.

Examples

A few practical ways to use the integration:

• Activate away mode when nobody is home: use a state change on your home and away group or a person entityAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more] as the trigger, and have the automation select Away on the global override selector. When someone returns, change the global override back to None to follow the normal week profiles again.
• Preheat before arrival: when you start the drive to a cabin, set the relevant zones to preset Comfort. On arrival, switch them back to preset None to let the week profile take over again.
• Pause heating when the heat pump can carry the load: when your heat pump is producing enough heat, switch the Nobø zones to preset Eco to avoid double-heating. Switch back to None when the heat pump stops.
• Show room temperatures on a dashboard: add the temperature sensors from your Nobø Switches to a dashboard alongside your other room sensors to keep an eye on every zone at a glance.

Following presence with the global override

This pair of automations sets the global override to Away when everyone leaves home, and clears it again when the first person returns so every zone goes back to its normal week profile. Replace group.family with your own presence group or person entityAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more], and select.my_eco_hub_global_override with the name of your hub’s global override selector.

- alias: "Nobø: set away when everyone leaves"
  triggers:
    - trigger: state
      entity_id: group.family
      from: "home"
  actions:
    - action: select.select_option
      target:
        entity_id: select.my_eco_hub_global_override
      data:
        option: "away"
- alias: "Nobø: clear away when someone comes home"
  triggers:
    - trigger: state
      entity_id: group.family
      to: "home"
  actions:
    - action: select.select_option
      target:
        entity_id: select.my_eco_hub_global_override
      data:
        option: "none"

Turning a zone fully off

The Nobø system does not expose an off preset, because the away preset doubles as frost protection and is fixed at 7°C. To turn a zone fully off, for example outside of the heating season or while a cabin is empty for a longer time, use a dedicated week profile:

1. In the Nobø Energy mobile app, create a new week profile and set every day to state off.
2. To turn a zone off, switch that zone to the new week profile. You can do this from Home Assistant by changing the Week profile select entity for the zone.
3. To turn the zone on again, switch back to your normal week profile.

To automate this, use a select.select_option action on the zone’s week profile selector. Replace select.cabin_week_profile with the week profile selector for your zone, and Off with the exact name of the profile you created in the Nobø Energy app.

- action: select.select_option
  target:
    entity_id: select.cabin_week_profile
  data:
    option: "Off"

The climate entity for the zone shows HVAC mode Off while the active week profile keeps the zone off. On/off receivers in the zone are switched off, and heaters with their own thermostat are no longer driven by the hub.

For more background on week profiles, see the Nobø Ecohub manual.

Data updates

The integration uses a local push connection to your Nobø Ecohub. When you set up the integration, Home Assistant opens a persistent TCP connection to the hub and registers for live updates. Any change made on the hub—for example, when a week profile changes state, when the temperature reported by a Nobø Switch changes, or when someone presses a Nobø Switch—is pushed to Home Assistant within seconds.

The current preset of a zone can also change on its own, when the active week profile moves from one scheduled state to the next. The hub does not send an event for this. To keep the zone’s preset accurate, the integration re-checks the active week profile against the clock every 60 seconds. This check is local and does not add any traffic to the hub.

If the connection to the hub is lost, for example because the hub’s IP address has changed, the integration tries to rediscover the hub on your local network using a UDP broadcast and reconnects automatically when it finds the hub again. This rediscovery only works if Home Assistant and the hub are on the same network segment.

Known limitations

The integration cannot manage the configuration of your Nobø system. The following must be done in the Nobø Energy mobile app:

• Registering or deregistering Nobø devices: Heaters, on/off receivers, and Nobø Switches have to be paired with and removed from the hub in the Nobø Energy app.
• Creating or deleting zones: Zones, including their name and which devices belong to them, are defined in the Nobø Energy app.
• Creating, updating, or deleting week profiles: Week profile schedules can only be edited in the Nobø Energy app. In Home Assistant, you can only select which existing profile is active for a zone.

Troubleshooting

Setup fails with “Failed to connect - check serial number”

The hub was reachable on the network, but it rejected the serial number you entered. Re-check the last 3 digits of the serial number on the label on the back of the hub and try again. If you set up the hub manually, also check that the full 12-digit serial number matches.

Setup fails with “Failed to connect - check IP address”

Home Assistant could not open a connection to the IP address you entered. Make sure that:

• The hub is powered up and connected to your network.
• The IP address is correct. To confirm the hub is reachable, check Settings > System > Logs for connection errors, or ping the hub’s IP address from another device on your network.
• No firewall rule blocks the traffic between Home Assistant and the hub, especially if the hub is on a different VLAN.

The hub becomes unavailable after its IP address changes

The integration tries to rediscover the hub automatically when it cannot reach the stored IP address. This uses a UDP broadcast that only works on the same network segment.

• If Home Assistant and the hub are on the same network, the integration usually picks up the new IP address on its own.
• If the hub is on a different network, the rediscovery does not reach it. In that case, update the stored address using Reconfiguration.

To avoid this issue, give the hub a static IP address or a DHCP reservation on your router.

Setting a target temperature does not seem to do anything

The eco and comfort setpoints always update, but they only take effect on zones that include a thermostat that supports remote control of the temperature setpoints. Zones that contain only on/off receivers or heaters without this support keep following their own temperature settings and ignore the new setpoint.

Removing the integration

This integration follows standard integration removal.

To remove an integration instance from Home Assistant

1. Go to Settings > Devices & services and select the integration card.
2. From the list of devices, select the integration instance you want to remove.
3. Next to the entry, select the three dots menu. Then, select Delete.