The K&H Pet Products Heated A-Frame Indoor/Outdoor Shelter kitty-pleasing indoor/outdoor home comes with a super cushioned, weatherproof, thermostatically-controlled heated floor. It’s perfect for a single kitty desiring more warmth. The unique A-frame design is sure to keep the cold and wind away while providing that much needed energy efficient warmth. Simple to fold up and store away when not in use. Uses only 20 watts. No tools necessary. Includes two removable door flaps. All K&H heated cat houses have been tested & are certified by MET Labs and exceeds USA/CA electrical safety standards; K&H doesn't just use safety listed parts, we safety certify the entire product - For indoor/outdoor use with 110/120 volt electrical current only. Designed & patented by K&H with OVER 20 years of experience in creating safe, innovative, quality products for pets: one year limited warranty.