Plumbers technical note – Water heater installations

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This technical note has been issued to clarify the general installation requirements of water heaters, including the correct termination of drain lines from  temperature/pressure-relief valve and expansion control valves. These conditions apply to the installation of new water heaters as well as replacements, additions and repairs to water heaters of all types.

Building and Energy
Technical standards
Last updated 14 Aug 2019

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