PART 2: Room Thermostat (Corrector) Device is used for controlling room temperature and for monitoring the whole central heating system, including wood pellet boiler work. Some of the features are: 5 heating profiles (7-day), 6 adjustable periods per day, setting holding temperature, low level pellet alarm, 5-day weather forecast, photo album and screensaver, etc. Also, since it's connected to Internet, device can receive commands from anywhere in the world using computer or mobile phone to make adjustments. Device is based on Arduino Mega 2560, has TFT LCD 3.2" (400x240) with touchscreen, ethernet, SD card, and temperature sensor (DS18B20) for measuring room temperature. Device communicates with central heating controller in boiler room wirelessly.