I found a brand new solar heater on Craigslist, the guy said it's a fafco 4x20. I asked him if it's the Solar Bear, he said it has a bear on the box. I was reading some specs and said a 1hp pump would handle installation up to 30 ft away. My question is, is this a good solar heater? and will my 3/4 HP handle a installation about 10ft away? I'm sure it will handle it, but want to make sure.