AcuSteam High Limit cutoff Thermolec’s exclusive ACE SENSOR monitors the conditions in the duct to prevent excessive buildup of humidity. It is included with every AcuSteam Pro and may be used with the residential AcuSteam as an option. The high limit cutoff is adjustable from 8...

The D21-P electronic controller has been designed to take full advantage of our patented Air-Flow Sensor which modulates the heater’s capacity according to the quantity of air flowing through the heater by responding to the radiant heat of the elements even at very low CFMs. With...

A pressure differential switch is used to prevent a heater from operating if there is no airflow across the heating elements. The switch is provided with a pitot tube to be installed into the duct, which makes it sensitive to velocity pressure as well as to static pressure. In ap...