How long can one expect to get out of an igniter? I used my stove on thermostat and it lasted only about 3 1/2 months. Is this normal? I guess it's burn more pellets or eat up an igniter. Luckily it's still under warranty, but I wanted to see how long it would last running off temperature mode. What have other people's experience been? I've been very happy with the heat from the stove but I expected the igniter to last a little longer than 3 1/2 months. I did run 24/7 so maybe that has something to do with it.