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 Check it out! If you switch your furnace to a high-efficiency combination boiler and hot water tank - it runs around 93% more efficiently. Did you know? If your co-op can’t get low-flush toilets just yet, adjust the float-valves in your toilet tanks so they use less water, or even fill a 2L empty plastic pop bottle with water, put the lid on and drop it in     | |||||||||||||||||||||