In this Arduino project I make and test a "Furnace Cycle Time" measurement system using a "Wind Sensor" over a furnace vent. This is Part 2 of my work to measure and capture the number of events per unit time of our home's furnace. I am doing this because I think that a new thermostat's small "dead band" or "hysteresis" is stressing the furnace's gas valve and blower much more than did the old thermostat.