This project is about getting the flame sensor to start a fan when triggered. The fan is wired to a relay and 5V. The relay is then wired to the arduino, 5V, ground, and input pin 13. The sensor is wired to 5V, ground, and analog output. The sensor detects the flame and sends this to the Arduino through analog output, which sends the message to pin 13, which travels through the relay to the fan to turn on.

Here is my link to a video showing this