I've been looking into this myself, as there is a lot of competition in our area. Flyers everywhere, and tons of craigslist ads, yet almost no one wants the ac's and fridges because of the freon. A 30lb recovery tank goes for like $75 or so on Ebay, and there are places you can sell the recovered refrigerant to. Addam is right though. Make sure you have separate tanks for each refrigerant, because mixed refrigerant has to be incinerated. Expensive mistake!!



However, once you get it, you may be able to have people pay you to take their scrap ac's and fridges, make the scrap off the appliances, and money off the refrigerant! Good deal! And the EPA test for small appliances is an open book test! Count me in!