Yeah i have been keeping a couple in stock, just had to change out both top and bottom oven in last 3 days. I am also associating it with leaving my 1 main oven on all night, so now im implementing that both ovens get shut down at closing. B4 anyone slams me for leaving an oven on all night, i was advised that by a supplier of the stones as its not a shook to the stones with the fluctuation of turning oven on and off all the time. But back in the days 1980’s that was all good when the thermocouple had mecury, but now makes no sense to me to leave oven on all night as it cost me about 37 bucks ever 6-8 months switching out the thermocouple