Quote:
Originally Posted by jump4
Are you sure about this? I believe the time waiting for hot water to arrive at the shower would be based solely on distance to the hot water source. It should not matter whether that source is a tank of hot water or an instant tankless heater. If the tankless heater is installed in a location different than where the old water heater tank, then there could be a shorter or longer delay to get a hot shower.
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I think the point is that the water in the tank is already hot, but the tankless water heater needs to heat up the water.