after 4 yrs my low cost t-stat went on the brink. sometime it would tell the stove to fire up then after 5 mins would tell her to shut down. then last night stove fired up and after 10 min I heard a click from the stat and all of sudden the stove was droping pellets into the fire box like it wanted to restart. nothing like having to run over and shut it down befor i had a big pile of pellets and one huge fire in the stove. just glade it happend when i was awake and that lowes was still open. so-far sogood with the new stat.