NR-240A (CR-240A) NG NAVIEN TANKLESS W/CIRC PUMP AND BUFFER TANK Review

This has been a disaster.Hasn't worked for more than 6 months (usually breaks down in 4) in the2 + years we've been tortured by it without our family being without hot water for a few days.Absolute nightmare.Bad product.Biggest purchase mistake we've made.

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Product Description:
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.

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