I want the pump inside just for ease of maintenance and being able to know what it is doing.
My pump in the basement will be near the lowest point of my system, the guys here told me that it should work fine. From highest point in system to lowest point is about 5'-6' max.
Pump = Grundfos 15-58 FC
Pex = 1"
Length = 70' one way (50' underground + 20' in basement), 140' total
I'm guessing I will have either 4 or 6 90s total, counting 2 on the back of furnace..
Here is how I picture my loop:
Furnace supply side underground to house -> Wye strainer -> Pump -> In/Out 20 plate water-to-water hx -> In/Out 19x20 water-to-air hx -> underground back to return inlet on furnace.
At this point I am really just wanting to know how to hook up my underground lines to the furnace, do I need anything besides ball valves, or should I make provisions for anything else at the outside connections.
I'm saving the inside questions for later!