Gardtech Outdoor Heater For Patio, Electric Space Heater With, Greenhouse Safety Heating Heater: This heater is equipped with an upgraded anti-tipping switch at the base. When placed on a flat surface, the switch stays in contact, allowing the heater to function normally. If tipped over, the switch disengages, automatically shutting off the heater to enhance your family?s safety. Energy-Efficient Outdoor Heater: This 1500-watt (5200 BTU) garage heater, designed for indoor use, operates at 110V and effectively warms spaces up to 20 square feet. With 30% higher thermal efficiency than comparable heaters, it delivers powerful heating while reducing energy costs. 3-Second Rapid Heating: Utilizing advanced PTC ceramic technology, this small space heater provides instant warmth in just 2 seconds. The high-speed 2600 RPM fan ensures fast, even heat distribution, keeping you warm and comfortable both indoors and outdoors. Whisper-Quiet Space Heater: This compact greenhouse heater operates at a low noise level of just 35dB, making it perfect for under-desk use in offices or quiet environments. It provides warmth without disturbing your work, relaxation, or sleep. Adjustable Heating Fan Modes: The heater offers three output modes: a 25-watt fan-only mode, 750-watt low heat mode, and 1500-watt high heat mode. This versatility allows you to customize the temperature to suit the needs of your plants or your personal comfort, making it ideal for greenhouses and other spaces.