I have a double 55 gal drum build with one being the smoking chamber and the other as a fire box. I just bought an Auber Ins. PID Controller, All in One: and hooked it up to a Grainger (Tempco) Finned Strip Heater: using PFA Glass Insulated High Temperature Heater Hook-up Wire: I cannot get the heater past 122 degrees. I have 120v coming from the controller to the tips of the wires then when I connect the wires to the heater I drop to 112v I have reversed the wires on the heater, as originally I didnt think there was a positive or negative, but it didnt change anything. The heater, in theory, should be glowing red/orange. Any idea what I am doing wrong???