This Manufacturing Thermo-Kitty Sill is incorporated with advanced engineering, for strength, and ease of assembly, with an attractive oval design. Thermo-Kitty SIll operates on only 6 watts. It's dual thermostat heating unit is buried deep within super soft orthopedic foam and is removable for year round comfort. The heater is set to keep the surface 12 to 15 degrees above ambient air temperature, and to warm to a cat-pleasing 102 degrees with the Kitty on it. No tools are necessary for installation when using the provided Velcro fasteners. There are also included screws for a more permanent attachment. Kitty Sill is the sturdiest window perch on the market. UL and CUL listed.
In warm weather simply remove the heater. Cover removes easily for washing.