||06-14-2011 08:08 AM
Originally Posted by Lutz
What's the difference between a navien NR210 and the Navien NR210 (A) models
The "A" has a built-in "buffer tank" to prevent the cold water sandwich effect. I just got one installed and wish I had stayed with my good old fashioned TANK water heater.
In 41 years living here I was never a minute without HW. Since I got this installed about 6 weeks ago me and my plumber have become close friends and I'm getting tired of cold showers.
In fact, as I type this he is out trying to get a replacement flow sensor since we have no HW yet AGAIN. It's great when it works.