This piece of junk they sell as tank less boiler it nothing but unstable piece of work. All its parts are faulty.
Fix one part , it takes 2 days for it to come from their facility in California. And then a technician has to show up. And then it will work for few days only to go kaput. Repeat this cycle.
Over and Over. This has not ended. It is winter time in North East. No heat and No hot water.
And they want to tell you please wait we will make it work. There must be class action lawsuit against the fraudsters selling this heater. I am from NJ and going to complaint to NJ consumer affairs authority to deal with this.
Every service call costs money. And this makes the unit practically a white dustbin.
Product or Service Mentioned: Navien Ncb-240 Water Heater.
Reason of review: Bad quality.
Monetary Loss: $7000.
Preferred solution: Full refund.