The flow rate of our showerhead uses 3.5 gallons per minute. This is 13.2475 liters per minute, or 132.475 liters in ten minutes. The cost of a 10 minute shower is:132.475 liters, multiplied by the cost per heated liter of water $.0146612, or
$1.9424 for the average ten-minute shower in Minneapolis, MN.
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