Re:LP Tankless water heater question?
I've seen a few commercial TWH that are NSF approved from Noritz, but I don't know much about them since my company only really deals in electric booster heaters. I will say that in most cases with customers I've seen where the question of NSF or non-NSF is the issue its almost always better safe than sorry. Even if your HD says its ok for now you never know when regulations will change, then you could wind up spending even more money for a second water heater that meets the standards. Just a thought.