This heater is awesome! I placed it in my gazebo and we used it last night while we were watching the Phx Suns game. It was 60° so we closed all the privacy curtains, and it kept my boys and I warm. Being in Arizona, we are spoiled by the warm weather so 60° is heater weather for us  Only had it it on 1000 watts, so Im sure 1500 watts will get some use soon as it gets colder.