Important requirement you should know about your new water heater:

  • Location—Prohibited in Bedrooms, bathrooms or closets (with some exceptions)
  • Full bore water shut off valve on the cold water side must be installed
  • Water tight drip pan required if the water heater is over a framed area.
    a. Drip pan requires a minimum ¾ inch drain line that discharges to an approved location
    b. Drip pan must be 2 inches in diameter larger than the water heater
    c. Drip pan height must be a minimum of 2 inches high
  • Access to the front of the water heater must be a minimum of 30 inch of clear space
  • Protection from vehicles required by bollards or location.
  • Flame or spark must be a minimum of 18 inches above the floor.
  • Water heaters must be supported on ground by 3 inch thick concrete pad abovegrade
  • Earth quake straps are required.
  • Straps must wrap all the way around the water heaters.
  • Must be able to inspect and remove the water heater.
  • Combination Temperature Pressure Relief (TNP) valve required.(City of Los
  • Angeles as of 2008 prohibits the use of 210 Valves—due to failed seals and waterentering the gas supply.)
  • A TNP dischard drain lines must be installed.
  • TNP Drainline may not slope upwards, drain to drip pans or discharge to crawlspaces.
  • Flexible connectors cannot be used as TNP drain lines.
  • Vent connectors must be mechanically secured by screws to the water heater (metal tape is not accepted)
  • Enclosures required for exterior installations unless the water heater is listed for Exterior use

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