RESIDENTIAL GAS, NON POWER VENTED, WATER HEATER
SERVICE HANDBOOK
State Water Heater Technical Training Department
© 2004 Ashland city, TN
14
Residential Gas – continued
Condensation is usually noted when:
• water dripping is heard (only) while the main burner is on,
• there is “water” around the heater just after the heater has been operating,
• there are small, black or red granules on the main burner or top of the heater or
• corroded jacket or vent piping is noted.
any of the above conditions exist • raise the supply air temperature or
• increase stored water temperature or
• increase the size of the tank
You would not wish to lower combustion
efficiency – this would waste gas. Use
materials (stainless steel, PVC etc.) that
will not be affected by the condensation
Installed in accordance with local codes.
TEMPERATURE/PRESSURE RELIEF VALVES