I currently have a tanco (I don't have the current model # now) in a 5 zone 2 story house. I was recommended to upgrade to a tanco 0010-F3-1IFC bc I am adding 5 more zones, and 2 zones will go up to a new third floor at the other end of the house. What should I be looking for to buy a correct pump? horse power? I am assuming I need more house power for a efficient flow? especially bc how far and now high the other zone is? Anything else I should look at?
Any recommendations for something within the same family of the tanco 0010-F3-1IFC but more powerful?