Plumbing · P-HGT35

Inline Water Heater Piping Detail

Materials

Elements

Walls Floors / Slabs Drainage Anchors / Embeds Connections / Plates

About this detail

Dual inline water heaters rest on the finished floor with piping schematic and wall anchoring. Units feature cold water supply lines with heat traps, expansion tank ET-D1, pressure and temperature relief valves with 150 PSI capacity, and a mixing valve setup complete with a circuit setter, balancing ball valve, check valve, and a recirculating pump RP-1 with aquastat. Gas supply lines include a gas cock, dirt leg, and flexible gas connection, with dielectric unions installed at connections. Water heaters are anchored to the wall using 1 inch by 18 gauge straps secured with number 10 by 2-1/2 inch wood screws. Relief valve discharge lines and full-size drain valves are routed to floor sinks and floor drains.

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