Hobbies and Crafts What is a Herpstat? What is a Herpstat? The Herpstat 1 is a proportional thermostat with selectable pulse or dimming modes. Selectable modes: Heat, Cool, Lighting, and Humidity. Temperature memory records high and low temperatures, even in event of power loss. 700-watt capacity. Related Posts:What is the temperature on a stove with numbers?What is a moderate or medium oven temperature?What is the temperature of a grill?The truth about 4K TV refresh rates is explained by Vizio.Does a Dyson fan use a lot of electricity, or is it worth the money?