![]() Older style grease pack gas valves were a common part installed with older water heaters. We recommend and install a 1/4 turn ball-style valve. The shutoff valve allows the water to be turned off on the cold water supply to the tank, when necessary while allowing the rest of the home to maintain normal water usage. Dedicated Water Shutoff ValveĪ water shut-off valve is required at the hot water heater. This code requirement is being enforced by Phoenix. This is to prevent accidental scalding and damage when the T/P relief valve opens and releases water due to high temperatures or excessive pressure. The Arizona Plumbing Code requires the Temperature / Pressure relief valve to have a drain that is piped to an approved location, most often this pipe is required to run to the exterior of the building. ![]() Temperature / Pressure Relief Valve and Drain (T/P Overflow) to the Exterior Drip Pan and Drain Linesįor water heaters located in an area where water damage can occur such as on a built-in platform, an inside location, attic or 2nd floor where water leakage could cause damage to your residence, a drain pan with a drain line running to an approved location (usually the exterior) is required. Air vents may be required and louvered doors and/or other means of providing combustion air may be recommended if it is noted there is a lack of combustion air for the water heater. Depending on the location of the water heater, there are a variety of approved remedies for a lack of combustion air. A sufficient amount of air is required for a gas water heater to function properly. ![]() The Arizona Plumbing Code has specific requirements for air for combustion, ventilation, and dilution of flue gases. During our onsite assessment, we will inspect the venting system and alert you to any pre-existing issues we see. Vents must also terminate to an approved location. Depending on the type of vent there must be a certain amount of clearance from the vent to any flammable or combustible surfaces. Vents must be installed in a specific manner per the Arizona Plumbing Code for safety. The size of the water heater vent depends on the amount of BTU’s the hot water heater burns during combustion. Some water heaters are power vented and have a plastic vent, but most traditional tank water heaters have a metal vent that attaches to the top of the unit to disperse the carbon monoxide created by the gas being burned to heat the water. Flue VentingĮvery gas water heater has a flue venting system. If you have a gas water heater located in a bedroom or bathroom, see our information on Direct Vent Water Heaters. This plumbing code regulation prevents the potential of human contact with trace amounts of Carbon Monoxide (CO) released from gas water heater vents and the possibility of inhalation accidents. Gas water heaters are not approved to be installed in bedrooms, bathrooms, or closets (unless for sole use). The Arizona Plumbing Code Regulates where a water heater may and may not be installed. Please note: We try to keep our code requirement information current however the city or municipality you live in can interrupt, update or enforce the code as they deem necessary without notifying the licensed contractors that provide services in their jurisdictions. Below is a list of requirements regularly enforced in the Phoenix Area. This allows our customers to make informed decisions about their residence. We must inform our customers of the requirements of the state of Arizona and make clear the items enforced in your area. ![]() In our experience, we find enforcement of the code requirements in the Arizona plumbing code varies from city to city as well as between inspectors.Īs licensed contractors, we perform a site inspection upon arrival to inform our customers of what areas the water heater is not compliant with the current code. Municipalities and Counties can enforce some, all, or part of the Arizona plumbing code. We also install our units to the best of our ability to codes enforced by the municipality where the water heater will be installed. we install water heaters to the current Arizona plumbing codes.
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