Annual KWh usage of electric ignition on gas water heater
I ended up getting a Rheem XG40T12DM40UO instead.  According to my Kill-A-Watt it uses the following amounts of power, depending on the state of the water heater:


Standby, Idle: &lt;= 1 Watt
Damper active open/close: ~4 Watts  (lasts about 10 seconds or so)
Active burn:  ~4 Watts