Average Reviews:
(More customer reviews)First: the Navien NR-series tankless has only been in service since Oct 2009, so the 2yr+ ownership reviews were done on the CR-series. The CR-series did have issues which were addressed in warranty fixes and massively updated on the NR-series. Second: do your research. I replaced my 17yr old A.O. Smith gas tank with the Navien NR-240A. The NR met my criteria of long warranty, EF, min GPM (zero). It didn't hurt either that I was getting the governments credit either, so I went to energystar.gov to do a lot of research heavy lifting. The "A" model included a small buffer tank (to eliminate the "cold sandwich") and a built in circulation pump. Make sure your plumber (or if you DYI) installs recirculation T's at the longest runs (in my case, master bathroom). Combinded with the built-in circulation pump, this will also eliminate the time it takes to get hot water to your facet (example: from 60sec to 5sec). Do not go with marketing fluff from other manufacturers (such as "market leader", "brand leader", etc...), go with what you need and what your criteria is (EF, GPM, warranty).
Click Here to see more reviews about: Navien NR-240A (CR-240A) Tankless Hot Water Heater with Circulating Pump and Buffer Tank
With this Navien, you get a 98% efficiency heater, recirculating pump, buffer tank and leak detector. You can vent with PVC pipe due to the low exhaust temperatures, this saves you the cost of stainless steel venting pipe. Comes with remote control. 11 gallons per minute water flow at a 45?F rise. For commercial applications link up to 99 units together.Navien: Energy-Efficient Water HeaterNavien's line of tankless water heaters relies on super-efficient condensing gas burners to create an endless supply of domestic hot water. Because condensing burners extract 98 percent of the heat from the gas flame, operating costs are less than one-half of an average tankless water heater and one-third of traditional tank heaters. And the exhaust is so cool, heaters can be vented with plastic pipe. The Model A shown has a miniature buffer tank to keep the hot water coming even when the flow is reduced to a trickle. The largest models have maximum flow rates of 11 gallons per minute in warm climates, 6 gpm in cold climates.
Buy cheap Navien NR-240A (CR-240A) Tankless Hot Water Heater with Circulating Pump and Buffer Tank now.
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