 We are Tulsa Severe Weather Station, 1023 KRMG. Thermal Windows Incorporated manufactures custom windows with mini blinds between the glass. Our new thermal blinds are easy to operate, have no unsightly cords or hangers, and never need dusting. That means you can eliminate curtains or drapes and still maintain privacy. Thermal blinds come in six colors and are available in pitcher windows, casements, our tilt-to-clean windows, and our sliding glass doors.