Atlantic water heater emits a metallic or sulfur (rotten egg) odor from hot water taps.

Safety: Avoid inhaling vapors directly from hot water. Do not use chemical disinfectants not approved for potable water.

• Increase the thermostat setting temporarily to 60–65°C and run the heater for several hours to perform a thermal disinfection cycle (check Atlantic manual for maximum allowed temperature).
• Flush several tank volumes of hot water through the taps to clear stagnant water.
• If odor persists, consider replacing the magnesium anode with an Atlantic aluminum or electronic anode if compatible with your model.
• In severe cases, drain the tank completely, rinse, and disinfect the system following local regulations or with the help of a professional plumber.