Homeowners sometimes express frustration with tankless water heaters due to several unique operational quirks and higher initial barriers to entry. The primary complaint is the high upfront cost of equipment and professional installation, which can be triple the price of a traditional storage tank. Other common frustrations include the delay in hot water delivery while waiting for water to travel from the wall-mounted unit to distant fixtures, the requirement for strict annual descaling maintenance, and the potential need for expensive gas line or electrical panel upgrades.
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