Collection of automation blueprints for Home Assistant.

Version: 1.0.1

Automatically controls a radiator fan based on temperature with hysteresis and optional window contact monitoring.

✅ Temperature-based control with hysteresis to prevent rapid switching
✅ Flexible temperature settings: Direct input or dynamic via input_number helpers
✅ Multi-window support: Optional monitoring of unlimited window sensors
✅ Safety features: Automatically turns off fan when sensor fails or any window opens
✅ Smart startup: Checks conditions when Home Assistant starts or automation is enabled

• Fan turns ON when radiator temperature reaches the set threshold (default: 30°C)
• Fan turns OFF when temperature drops below the lower threshold (default: 28°C)
• Fan turns OFF immediately if any window is opened
• Fan evaluates conditions when windows close or Home Assistant restarts

• Temperature Sensor: Sensor measuring radiator temperature
• Fan Switch: Switch or smart plug controlling the fan

• Temperature ON (°C): Set direct value or use input_number helper
• Temperature OFF (°C): Set direct value or use input_number helper
• Window Sensors: Select any number of window/door contact sensors

Option 1 - Direct Input (Simple):

• Set fixed values: e.g., ON at 30°C, OFF at 28°C
• Best for static setpoints

Option 2 - Input Number Helpers (Advanced):

• Use input_number entities for dynamic control
• Change temperatures on-the-fly via UI or other automations
• Helper values override direct input

• Single Room: Control a radiator fan to improve heat distribution
• Multiple Rooms: Create separate automations for each room
• Energy Saving: Stop heating when windows are open
• Dynamic Control: Adjust temperatures based on time of day or other conditions

Click the badge above or use this URL in Home Assistant:

Settings → Automations & Scenes → Blueprints → Import Blueprint

Paste: https://github.com/HubEight/home-assistant-blueprints/blob/main/radiator_fan_controller.yaml

1. Copy the blueprint code from radiator_fan_controller.yaml
2. In Home Assistant: Settings → Automations & Scenes → Blueprints → Import Blueprint
3. Paste the code in the YAML editor

1. Go to Settings → Automations & Scenes → Create Automation
2. Select "Radiator Fan Controller"
3. Configure your entities and temperature values
4. Save and enable!

Found a bug or have a suggestion? Open an issue on GitHub!

MIT License - feel free to use and modify!