Reddit reviews Facon 2Packs 12" x 18" RV Holding Tank Heater Pad, Up to 50 Gallons Fresh Water/Grey Water/Black Water Holding Tank Heating Pad with Automatic Thermostat Control, 12Volts DC

[Exclusive Technology] Facon’s world-famous Tank Heater Pads. Heater Pads are Designed and Engineered to protect RV holding tanks, pipes and steps from freezing. Winter convenience of Today’s RV’er. Provides water for RV, Camper, Trailer, Mobile home, Boat, Marine in winter. We own the Patent and Certificate for this Products. Genesis Lighting is the only manufacturer for this product.[Thermostat Controlled] Simply turn "ON" the power switch when the outside temperature is near to freezing. Built-in Thermostat is Set to Turn Itself on at 45°F( + - 5 degrees) and Turn Itself off at 68°F( + - 5 degrees). Turn "OFF" the switch when the outside temperature remains above freezing, fluids have been vacated, or Summer is coming, or RV is not in use.[Application] Pad size L 12'' x W 18'' works efficiently up to 50 gallon holding tanks, such as Fresh Water Tanks, Grey Water Tanks and Black Water Tanks. Please stick 2-3 pads to your tank if it larger than 50 gallon.[Easy Installation] 2-Wires Design without plug - Convenience for fixed place installation. Just wire this pad to 12Volt DC power supply and RV power switch. Red Wire=Positive (+); White Wire=Negative (-). 3mm Foam Insulation Pad with self-adhesive make it easy installation, no extra facility required.[High Quality Warranty] Passed US Standard QAI Quality Certification. We take full Responsibility for our products and customer dissatisfaction. One Year Warranty GUARANTEE!