Product review (5 stars): it looks like the burner just was past its prime (burner is ...
I rent an apartment and have this old stove.  One day I was preheating a pan on the burner and the burner started sparking (like a 4th of July sparkler).  There was nothing on the burner or in the pan.  Since it's an old stove, it looks like the burner just was past its prime  (burner is heavily used as its the only large burner on the stove).  This new one arrived before my landlord would have to replace the burner.  It works spectacularly and you can't ask for more than that.