Experiencing a delay in receiving hot water from a tankless water heater is caused by the physical travel time required for heated water to travel through your plumbing pipes from the unit to your faucet. Unlike traditional storage tanks that keep hot water sitting ready in a reservoir, tankless units heat water on demand only after flow is detected. Consequently, cold water sitting dormant in your pipes must be pushed out entirely before the newly heated water arrives at your tap. Verification: Install an external hot water recirculation pump system to deliver instant hot water to distant fixtures.
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