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.