I know the "Genesis" is apparently the 1588 model, which has a yellow fan among other things, but the incubator that I ordered is 1588R. It also comes with a preset electronic thermostat, however it is far more pricey than the 1588 around $200.00 instead of anywhere from $120 - $160. Here is the manual they give for it: https://www.berryhilllimited.com/pdfs/1588RInstructions.pdf What do you think? What could the difference be? Does anyone know? Thanks!