Installed Navien tankless unit with Ion 6 water conditioner. Ran fresh air and exhaust outdoors along with new line for condensate pump. Installed crossover tee for recirculation in master bathroom. Added new gas line with two separate isolation valves for unit and will do a high volume meter upgrade as well. Removed old water heater and ran new water lines over to new unit. Everything is working properly and warranties have been registered for both the tankless and the Halo Ion. Also replaced pressure reducing valve and main shutoff to home and pressure is set to 65 psi.