Product review (4 stars): and it does heat good but no way to know what the temperature setting ...
first this was bought for brewing, and it does heat good but no way to know what the temperature setting is only 1,2,3,4,5,ect.  we also are using this with a wok and does a good job for that too, only reason not a 5 is for temperature control,just a note most people don't have these kind of plugs in their house but all I had to do was add a 20amp breaker to my fuse box and use a plug I had already and changed it to a 220 which wasn't hard