The Tank › Should I insulate the hot water pipes in my basement??? › Reply To: Should I insulate the hot water pipes in my basement???
A resounding yes. It’s been proven that a great part of the inefficiency in a water heating system lies not with the heater, but with the distribution system. You lose most of the heat you’ve put in at the water heater in the piping carrying the water to the shower, and then when the water runs down the drain.