Thermostatically controlled Immersion Heater with thermal safety cut off.  (for light degreasing and aid in general cleaning) Maximum recommended temperature setting is 130 degrees F for stainless steel manual glove port cabinets. For stainless cabinets, this option should be paired with either of the higher CFM rated exhaust options- WTSS-04HC, or WTSS-04HCH.

Note: For Model WT36RP, heater is factory set to 110 degrees F maximum.