This is what a proper navien install looks like! r/Plumbing

Navien External Recirculation. Navien tankless water heater recirculation 20160401 Plumbing and External Recirculation: Let you select commands in the menu to preheat according to the set DHW temperature; 3 The NaviCirc recirculation valve works best if installed under the furthest accessible fixture away from the water heater

Recirculate temp in is 67, temp out when just recirculating is 67 Customer: I am just looking to understand internal vs external recirculation with navien tankless water heater

Navien NPE240A and NaviCirc Installation Question Terry Love

And here is a more detailed explanation of how to set and use the internal and external modes Is this right? The A2 models have an internal pump, I'm set up to use external recirculation with a hot button, and it does seem to be working, so what. And here is a more detailed explanation of how to set and use the internal and external modes

Navien NPE240s with external recirculating pump. Recirculate temp in. Does external mean you are pushing hot water to all your lines and internal means it keeps the unit hot for freezing temps? Answered by SeanT1117 in 9 mins 4 years ago. To exit the view information mode, just press the back button on the front panel.

The Ultimate Guide to Navien 240a Recirculation Diagrams Everything. There are recirculation valves available from various manufacturers including Navien, Watts, Taco and Grundfos To prevent the cold lines from becoming excessively warm, the thermostat control within the valve will stop recirculation flow once the hot water arriving becomes ~100 degrees