GSW water heater does not meet temperature at distant fixtures but is hot near the tank

Safety: No direct heater hazard, but avoid raising tank temperature excessively to compensate.

• Check temperature at tank outlet: Measure hot water temperature directly at the heater to confirm it meets setpoint.
• Inspect for cross-connections: A mis-plumbed mixing valve or single-handle faucet can mix cold into the hot line. Have a plumber test and correct.
• Recirculation system: If present, verify the recirculation pump is running and check any check valves for proper operation.
• Insulate piping: Add insulation to long hot water runs to reduce heat loss.