Jim and Joe, You guys are the greatest. I do have a couple of questions. 1] is $100 a good price on the 0010? 2] If it is a good price should I buy the other for backup or the future greenhouse loop? 100' away on 1.5" pex 3] Would it harm the hot tub loop with the old fashioned radiator or should I go for a 007? 4] Where do you get your capes? We have no super heros here in Elbert.