Tankless Water Heater - does it waste water?
Thinking about getting a tankless (Girard?) and the tech we spoke to said that it wastes about 2 gallons of water just by turning on the hot water to get it hot, and that once it cools down, it wastes...
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They will waste more water, unless they have a constant recirculation or heat setting. This setting keeps the heater warm and reduces the amount of time for the heater to start heating the water. Kind of defeats the purpose of the unit. All the tankless heaters take time to sense the water flow, start the ignition cycle and then get the heat exchanger up to temp. could be anywhere from 5 seconds to 20 seconds.
