Solar water heater installation method should be directed in favor of the maximum absorption of solar energy, compared to the south west and south east is more conducive to absorption of solar radiation. In engineering practice collector arrangement affected the shape of the roof, and even request posted on the flat roof installation, this will certainly affect most needed winter sun collector heat effect, the collector should be bigger inclination to fully assess the effect of winter collector. Compelling products should be combined with the water heater collector arrangement for processing, to maximize efficiency. Liver showed promise for the case in front row arrangement and there should be a suitable arrangement shade arduous Solar Technology Co., Ltd. Zhejiang Yi Puli recommend that you try to take into account before and after the winter solstice by 10:00 winter sun elevation angle is calculated using the row in residential buildings arduous. Under field conditions permit should be properly amplified, so that the surface of winter street lighting sufficient sunshine. Zaozhuang Solar Engineering Co., Ltd., Zhejiang Yi Puli heater service