I recently came across an innovative way to optimize my radiator performance using the HeatMeister radiator fan controller. After some research, I discovered that this device is based on the ESP32C3 chip and offers features like temperature monitoring and PWM-controlled fans, which I thought could be a game-changer for my home heating setup.
The journey began with reverse engineering the device to liberate it from its closed firmware. I decided to install ESPHome on it, which not only gave me more control but also allowed me to integrate it seamlessly with my existing smart home ecosystem. I’ve shared my configuration on GitHub (github.com/wildekek/heatmeister-esphome) so others can benefit from this hack too.
One of the most exciting aspects of this project is the versatility of the device. With three temperature probes and the ability to control 12V fans, it opens up a lot of possibilities for fine-tuning heating efficiency. For instance, I can now monitor temperature gradients across my radiators and adjust airflow dynamically to ensure even heat distribution.
If you’re looking to enhance your radiator system without replacing your existing hardware, I highly recommend exploring this solution. It’s been a fantastic way to get more out of my heating setup while keeping things energy-efficient. Let me know if you have any questions or if you’ve tried something similar! 