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Well on one side of the equation I'm curious to know what the optimal solution would look like. This is the do not care what it costs, just make it perfect option.
So to do that we have:
Put a...

Not hypothetical

Actual system in house recently installed new lines to the sinks replacing old polybutylene lines on the hot side to add the recirculating feature. (PB not recommended for...

I'm trying to understand what kind of balancing valves are available for a hot water recirculation system operating on a PEX header system.

I found lots of examples of headers and valves...

Had a small problem over the weekend with my NR-210A but it was relatively easy to fix.

There is some kind of air purge valve on the top of the recirculation pump. Mine was leaking and water was...

I know. Responding to a 2008 thread.

Anyhow, Navien NR-210a installed here about 2 years ago. Been a pretty good experience I must say.

No, it's not maintenance free. You should flush /...