Navien Tankless Water Heater Installation In Chula Vista CA

We have replaced 50-gallon water with a new Navien tankless water heater model 210A2. We reworked hot and cold water lines, updated the vent pipe to a 2-inch PVC pipe, and installed an expansion tank. We reworked the gas line, installing the appropriate gas shut-off valve and the gas drip leg. Installation was done up to code and inspected by the City of Chula Vista. Our Installation passed inspection.