WATER HEATING SYSTEM REDUCES EMISSIONSVELUX America has introduced a solar-water-heating system that reduces greenhouse-gas emissions by not operating with fossil fuels. Two to three rooftop solar panels integrate with roof lines. Hot-water holding tanks are available in 80- and 120-gallon (303- and 454-L) sizes. (800) 888-3589; www.veluxusa.com/solar
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