The VH110 whole room heater is an effective way to reduce energy costs. This whole room heater has a thermostatic temperature control knob. Select your desired heat setting with a simple turn of the dial. Vorndao's signature Vortex heat circulation then distributes the warm air throughout the room. Unlike typical heaters whose hot coils create areas of extreme heat directly around the heater, the VH110 outputs a steady current of 102 degree heat the envelopes the room in comfortable warmth.