Looking for a heat pump, 3 tons, 14 SEER. Received a few quotes, Amana seems to be ahead of the pack because of the Warranty. Also got an interesting price for a Goodman SSZ14 (not the GSZ14...) which, from the specs, look very similar to the Amana ASZ14. But someone just came out with a Whirlpool Gold offer (WGHP4436A), stating it is the same thing. I am trying to find info about this Whirlpool product, negative or positive.