so I bought this stove, it was a showroom model from last year. so far it burns nice, I think. I am new to this all. originally the receipt was sent to horizontal vent instead of the vertical stack like we have. ran this way for about a week. no real issue except a lot of ash and "sparks" when pellets would fall into the burn bowl. that seems to have stopped after I was able to set the receipt to the correct setting. I have it hooked up to a thermo and a separate one to run the fan/heat pump so far no heat pump running which is a good thing. it seems to cycle properly on the thermo. when its running on the lowest setting, how high should the flame be in the pot? mine ranges from a few inched above the pot up to almost to the top of the window. also I have it to stay running but on the lowest setting when the thermo cuts its off instead of cycling off completely to save the ignigator. how much of a pain/expense is it to replace the ignigator?