Where must fuel-fired water heaters not be installed according to plumbing regulations?

Fuel-fired water heaters are subject to specific code restrictions to ensure safety and compliance with plumbing regulations. One of the primary concerns is that these appliances need adequate ventilation and should not be placed in locations where their operation could be compromised by the surrounding environment.

Installing a fuel-fired water heater in a storage closet can pose significant risks, as the presence of flammable materials could lead to fire hazards. It is essential for the installation area to be clear of any combustibles and to ensure that there is sufficient access to air for proper combustion. Additionally, if a fuel-fired water heater were to malfunction or leak, having it in a storage closet could obstruct necessary maintenance and repair access.

Other locations, such as basements or attics, may have specific guidelines or limitations based on their configuration but are not outright prohibited if they meet the ventilation and safety requirements set forth in the codes. In contrast, the restriction against installation in a storage closet stems from the need to maintain a safe environment around the appliance.