Solar water heaters — also called Solar domestic hot water systems — can be a cost-effective way to generate hot water for your home. They can be used in any climate, and the fuel they use—sunshine—is free.
wrapping your water heater with a blanket could save 1,000 pounds of carbon dioxide a year, 1,000,000/1,341 kwh of energy, a 125/458 cubic meter container of oil, 200,000/687 acres of soil from being polluted, 250/1,341 pounds of mercury a year, a 1,000/447 cubic meter lake, 400/1,341 tons of coal, 6,250/229 tons of greenhouse gases, 50 gallons of gasoline, 200,000/9,387 metric tons of toxiclead, 312,500/4,023 tons of waste, 50,000/1,341 metric tons of limestone, 45/74 tons of air pollution per year, enough energy to power a CFL for 3,875/97,893 years, almost $90.00
setting the water thermostat no higher than 120 degrees Fahrenheit can save 550 pounds of co2 per year, 550,000/1,341 kwh of energy, a 275/1,832 cubic meter container of oil, 275/2,682 pounds of mercury a year, a 550/447 cubic meter lake, 220/1,341 tons of coal, 6,875/458 tons of greenhouse gases, a 33/320 cubic meter tank of gasoline, 110,000/9,387 metric tons of toxiclead, 171,875/4,023 tons of waste, 27,500/1,341 metric tons of limestone, 99/296 tons of air pollution per year, enough energy to power a CFL for 8,525/391,572 years, almost $50.00.
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