Quote Originally Posted by Abrnth3 View Post
at least when you breathe ammonia you know to get out of the area. Breathing R22 isn't any better.
The problem with an amonia system is that breathing anhydrous ammonia will in all likelyhood, ummm put you in the hospital or kill you. Nasty stuff if you aren't carefull with it. I wouldn't want an ammonia system in a residential situation.