// CODE SNIPPET
P2801.6 Required Pan
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Where a storage tank-type water heater or a hot water storage tank is installed in a location where water leakage from the tank will cause damage, the tank shall be installed in a pan constructed of one of the following:
- Galvanized steel or aluminum of not less than 0.0236 inch (0.6010 mm) in thickness.
- Plastic not less than 0.036 inch (0.9 mm) in thickness.
- Other approved materials.
A plastic pan beneath a gas-fired water heater shall be constructed of material having a flame spread index of 25 or less and a smoke-developed index of 450 or less when tested in accordance with ASTM E84 or UL 723.
P2801.6.1 Pan Size and Drain
The pan shall be not less than 11/2 inches (38 mm) deep and shall be of sufficient size and shape to receive dripping or condensate from the tank or water heater. The pan shall be drained by an indirect waste pipe of not less than 3/4 inch (19 mm) diameter. Piping for safety pan drains shall be of those materials indicated in Table P2906.5.
Where a pan drain was not previously installed, a pan drain shall not be required for a replacement water heater installation.
P2801.6.2 Pan Drain Termination
The pan drain shall extend full-size and terminate over a suitably located indirect waste receptor or shall extend to the exterior of the building and terminate not less than 6 inches (152 mm) and not more than 24 inches (610 mm) above the adjacent ground surface.
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