I was called to a home today, the homeowner wanted an estimate on the changeout of an existing unit. After arriving, evaluating, calculating, and presenting the homeowner with a bid, he then tells me that he has already purchased a condenser off ebay!!!!!!from ebay, dammit! is this even legal for him to buy a condenser from there. after I gave him my bid he asked me how much cheaper it would be with him furnishing the condenser, so in my most professional demeanor, I calmly explained to him that it would be the same price and that I would not give him my standard warranty that I give all my customers (In addition to the mfg warranty, I give two years labor warranty) since I didn't know where it came from. He was extra dissapointed when I explained that he had to now go and purchase a cased coil (410a) to match the condenser that he had just bought. Is it legal for just anyone to buy a split system from a web site like ebay?