BA1HSL - Heated Bird Bath - Clamp Mount $79.99 THE ERVA HEATED BIRD BATH is *GUARANTEED to provide your birds with water down to -20 degrees F.!* Clamp mounted Heated Bird Bath is 60 watt thermostatically controlled. Some icing on the surface of the water is normal when temperatures are extremely low, especially if there is a breeze. Your birdbath is not defective if ice begins to form around the rim. Heated Bird Bath dish is 14” in diameter. It nests in a clamp mount black wire ring. One year warranty. This Heated Bird Bath is assembled in the USA at our factory in Chicago. The thermostat and heating element are manufactured off shore. All other Heated Bird Bath components including the flame retardant black dish, insulation and the metal ring are made in the USA. All Erva Heated Bird Baths are made with material certified as flame retardent and BPA free. Our Heated Bird Baths might cost a little more because we use only flame retardant material. Erva Heated Bird Baths also offer fully insulated heating elements which send heat directly upwards, conserving energy. Full insulation also prevents condensation within the Heated Bird Baths which can corrode the electrical contacts rendering the product inoperable. Model: 763945870069 Manufactured by: Erva - Made in USA