The water heaters which are used in the city Woodland Hills are of various types such as conventional water heaters, tankless water heaters which are being used nowadays etc.,. The water heaters generally are driven with the help of electricity and by natural gas. People in Woodland Hills plumber and plumbing services are using solar powered water heaters and natural gas (propane) driven heaters to converse electricity. Solar powered water heaters are prominently used by people in Woodland Hills plumber and plumbing services operate in in all kinds of climate and are the lowest-maintenance among the solar energy systems available. There are two types of active solar water heating systems that are used in Woodland Hills plumber and plumbing services and they are are direct and indirect. The sun-powered collector draws together the water to be heated directly through the direct systems. A different liquid is used in the plates and then water is being heated by indirect systems and then afterwards water is circulated, thus transmitting heat. Integral collector-storage systems and evacuated-tube sun-powered collectors are the two basic classes of the solar collector systems which heats the water using sunlight. The solar water heaters are used at warm and hot weather temperature, but at cold and freezing temperature we use gas driven or electric water heaters. Gas driven water heaters are also being used in the city Woodland Hills to minimize cost. People say that gas water heaters reduce the cost by half compared to electric water heaters. So people sat Woodland Hills plumber and plumbing services tarted using water heaters driven by natural gas (propane) because of advantages like safety, tank capacity and flow rate. On seeing some demerits of storage tank water heaters such as it is bulky, long time for heating water, durability, longevity new tank less water heaters were introduced in the city Woodland hills. These tank less water heaters provided lots of advantages such as Small size instantaneous heating of water, durability, easy installation, efficiency, unlimited amount of hot water.