Gas water heater or Eletric water heater? I would like to use electric water heater, but my friend said that it's more safe to use gas water heater.
Because if I'm using electric water heater, accidentally the water can contains the dangerous electric ion and it can kill us.
well I am guessing you live in the US and I would say go with gas heater but in many countries where people use gas heaters it is much more dangerous because just like power companies the gas companies cut gas...so when that happens people need to turn them off and if they don't lots of things can happen...actually lots of people die due to this problem as some of them use gas heaters to heat their homes in winter as well.
In India we get solar heater with electric heating backup. Works fine on sunny days with the heater combination and on cloudy days the electric heater takes over completely. If you are not in the equatorial region I dont think it will be effective
For about 200 litres capacity unit it costs about US$ 500 with easy loans from banks. Zonal laws require all new commercial buildings should install solar heaters and rain water harvesting facilities.
a what who is dangerous? lol I have never hear that one before.
Electricity will not poison the water, you can put that to rest now.
It should come down to efficiency, which has been said gas is most of the time WAY cheaper to operate. An electric water heater usually has 2 elements(upper and lower) each being 4500 watts, see my post from yesterday at http://www.webhostingtalk.com/showth...hreadid=269467 to help understand the cost of operating a 9000 watt water heater. It should be said though that much of the time the upper element will not kick on. As heat rises the hotter water goes to the top while the cooler water is at the bottom(this is why the pipes are at the top, to give you the hottest water available), this cause the lower element to kick on more often than the lower. Another factor which can change this is that each has its own independant thermostat. How you set each will determine how often each comes on. The top t-stat should be set at just a couple degrees lower than the lower,his will cut the electric consumption.
edited to add- An electric water heater is your largest fuel consuming appliance and is the reason for the biggest chunk for your electric bill, generally about 40% which is even more than your air conditioning your home. The cost of running a gas water heater will generlly be about 10 - 15% of your total bill.
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