Matches in DBpedia 2015-10 for { ?s ?p "Solar hot water systems use pumps or fans to circulate fluid (often a mixture of water and glycol to prevent freezing during winter periods) or air, through solar collectors, and are therefore classified under active solar technology.Some of the basic benefits of active systems is that controls (usually electrical) can be used to maximize their effectiveness."@en }
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- Active_solar comment "Solar hot water systems use pumps or fans to circulate fluid (often a mixture of water and glycol to prevent freezing during winter periods) or air, through solar collectors, and are therefore classified under active solar technology.Some of the basic benefits of active systems is that controls (usually electrical) can be used to maximize their effectiveness.".