The sophisticated surface-mount CON Premium uses natural convection for silent draft-free heat without a fan. The electronic digital control with illuminated display includes a programmable timer with 3 presets, a variable timer for booster heating of up to 120 minutes, open window detection for energy savings, and a child protection mode to lock controls. A self-learning program in timer mode will pre-heat the room so the desired room temperature is achieved at the programmed time not after. Designed and made in Germany, this quiet fan heater quickly warms an area or maintains a comfortable temperature. The frost-protection setting will maintain above-freezing temperatures in an appropriately sized space. The thick aluminum face stays cool to the touch. Perfect for both retrofit and new construction, the European design heats a space evenly and silently. CON Premium heaters easily replace older flush-mount or baseboard heaters. They are ideal for bathrooms, basements, offices, playrooms, 3-season porches, cabins, campers or RVs, and mobile homes. Stiebel Eltron is a world-leading German manufacturer of technically sound and environmentally-friendly products since 1924.