... . Meets and exceeds U.S. DOE standards. Water Heater Insulation Blanket helps prevent heat from escaping your water heater, thereby ... A tank that is warm to the touch needs additional insulation. This insulation blanket includes adhesive tape, easy to follow instructions, and ... compatible with gas, oil, and electric water heaters. This R-11 insulation blanket can reduce energy loss by 25-45%, resulting ...