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Radiant Design Help Needed - 5500 Sqft with 10 Zones
So I have attached my heat load and loop layout. The plan is to install the boiler/Instant Hot water heater in the closet on the far North of the house. That would be the little room off the Master. I am a little confused on the how the Pex should be ran from the boiler to multiple manifolds. Do I have one manifold next to boiler with hot and return and run it to each additional manifold? So Main manifold next to the boiler would need to be a 4 port and it would run to the additional manifolds?
Any help on the design would be great. I really was not sure what to do with the hallways throughout the house. So I just expanded other zones to include the hallways and half baths. Think this is the best option or should I set those areas up as their own zone?
As for a pump I guess i am looking at one circulator pump. Possibly the Grundfos ALPHA2. Thoughts on this pump?
House is an ICF house with 2" foam under the slab. All pex will be in slab. Thought about adding an 11th zone in the small garage on the north side of the house.