I have been using this product from the last six months and I get very bad results. This solarizer heater works only in the summer season but when the winter comes the heaster does not work properly. Because this heater works through sun rays which is only available in summer season. It also doesn’t heat so fast and it takes to time to heat. So from my advice I prefer you not to use this heater because it is only waste of money. This heater is also very costly but doesn’t work properly so follow my advice and don’t buy it.