While this is a task that requires a plumber and up-front cost of up to $500, it can save on hot water costs in the long term, with energy savings of up to 30%. A drain- or grey-water heat recovery system will capture the heat from hot water pouring down drains of showers, sinks, dishwashers and washing machines, and use it to pre-heat cold water going on to other fixtures.
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A LOZO expert posted this tip. |