Drain Pan For Water Heater Code

When installed water heaters must be equipped with a drain pan at least 1 5 inches deep large enough to catch condensation and other drips from any spot on the bottom of the water heater.

Drain pan for water heater code.

The pan shall be drained by an indirect waste pipe having a diameter of not less than 3 4 inch 19 mm. This reduces the risk of water damage from leaks and aids during flushing. The california water heater code is part of a larger statewide california plumbing code and has several very specific restrictions. If the water heater thermostat fails to turn off at its temperature setting and continues to heat the water indefinitely the tpr valve will open and let the overheated water out.

504 7 1 pan size and drain the pan shall be not less than 1 1 2 inches 38 mm in depth and shall be of sufficient size and shape to receive all dripping or condensate from the tank or water heater. Any level above the ground floor or in attics or ceiling areas or within the habitable space. Sunday july 1 2018. According to the international residential code irc and florida building code fbc at section p2801 5 a drain pan is required for a water heater in any of these areas of a home.

This drain pan must be equipped with a pipe at least 3 4 of an inch in diameter which drains into a floor drain. Code expert glenn mathewson describes 10 common water heater code issues including confusion about drip pans and drains unsupported expansion tanks and plastic vents lack of combustion air and more.