FUNCTION 01
Device Control
Power devices on/off, adjust repellent intensity, and control multiple LIV units independently or as groups

Home Assistant integrations
Home Assistant · Python · ESPHome
Complete Home Assistant integration for Thermacell LIV mosquito repellent systems
Thermacell LIV is an innovative smart mosquito repellent system that creates invisible zones of protection around your outdoor living spaces. Unlike traditional citronella candles or spray repellents, the LIV system uses heat-activated repellent cartridges to disperse an odorless, DEET-free vapor that repels mosquitoes within a 20-foot radius.
Features
3 system functions
Intelligent mosquito protection for your outdoor living spaces.
FUNCTION 01
Power devices on/off, adjust repellent intensity, and control multiple LIV units independently or as groups
FUNCTION 02
Monitor cartridge levels, battery status, connection status, and operating mode in real-time
FUNCTION 03
Manage multiple Thermacell LIV devices across different outdoor zones from a single interface
Entities
3 entity groups
Real-time monitoring of all your Thermacell devices.
Automations
4 recipes
Without this integration, systems operate in isolation with only basic scheduled behaviors. Home Assistant integration unlocks sophisticated automation capabilities:
AUTOMATION 01
Automatically activate outdoor mosquito protection when people are detected in outdoor areas. Integrate with motion sensors, door contacts, or phone presence detection to ensure protection is active only when needed, saving cartridge life and energy.
Example: "When back door opens and motion detected on patio between sunset and midnight, turn on patio Thermacell LIV at medium intensity. Turn off automatically 30 minutes after last motion detected."
AUTOMATION 02
Integrate with weather data to intelligently adjust protection based on mosquito activity conditions. Mosquitoes are most active during warm, humid, low-wind conditions. Automatically increase protection intensity during peak mosquito hours and reduce or disable during unfavorable conditions like high wind or cold temperatures.
Example: "When temperature above 60°F, humidity above 50%, wind below 10mph, and outdoor motion detected, activate all outdoor Thermacell devices at high intensity. If wind exceeds 15mph or temperature drops below 55°F, turn off devices (mosquitoes inactive)."
AUTOMATION 03
Coordinate mosquito protection with outdoor events, entertaining, or activities. Create scenes that activate appropriate zones based on calendar events, manual triggers, or voice commands. Integrate with outdoor lighting, music systems, and other smart home devices for comprehensive outdoor entertainment experiences.
Example: "When 'Backyard BBQ' scene activated, turn on all patio and lawn Thermacell devices, activate outdoor string lights, start patio speakers, and send notification when all zones are active. Pre-activate 15 minutes before calendar event starts."
AUTOMATION 04
Proactively monitor cartridge levels across all devices and send notifications when replacements are needed. Track usage patterns to predict when cartridges will run out and automatically add replacement cartridges to shopping lists or trigger reorder workflows. Prevent situations where devices run out of repellent during active use.
Example: "Monitor all Thermacell cartridge levels. When any device drops below 20%, send push notification with device location and add 'Thermacell Refills' to shopping list. When below 10%, send urgent notification and flash living room lights. Track monthly usage and predict next replacement date."
Installation
HACS · PyPI · GitHub
METHOD 01 · HOME ASSISTANT
Install directly from HACS (Home Assistant Community Store). This is the easiest method and provides automatic update notifications.
Add to Home AssistantManual sequence
METHOD 02 · PYTHON
For developers building custom integrations or scripts, the underlying Python library is available on PyPI.
pip install pythermacellView on PyPI ↗REQUIREMENTS
SOURCE CODE
View the source, report an issue, or contribute to the project.
View on GitHub ↗OPEN SOURCE · COMMUNITY MAINTAINED
This integration is an unofficial, open-source project developed by the Home Assistant community. It is not affiliated with or endorsed by Thermacell Repellents, Inc. The integration is actively maintained with regular updates to support new features and devices. Community contributions and feature requests are welcome on GitHub.