All-concrete (ICF) home: Can I make it work with zero or minimal ductwork?
Greetings all, I am a new member that has looked at some relevant articles related to radiant heating and cooling but I am either still confused or in denial of the answer being “not possible in my climate zone”.
I am in climate zone 5 near Chicago, IL. I am building an all ICF home. This includes a basement slab, and suspended insulated slabs for the 1st and 2nd floor and the roof poured at 3/12 and 4/12 with no uninsulated attic spaces.
My thoughts on accomplishing my goal of minimal ductwork and forgoing forced air is to:
Heat and cool with embedded PEX tubing in the slab.
Use a stand alone dehumidification and an HRV for outside air.
If that’s not a challenge, then, I would like to achieve net zero at a later date as well. Therefore I would like to go all electric with an air to water heat pump (manufacturers that I heard of but haven’t had a dialogue with yet included uponor and chiltrex) but I would consider a gas or electric boiler if I could make this system work. (A gas hook up is about 4,400 right now so I would like to avoid that)
I know that condensation on and in the slabs during the humid summers will be my challenge when attempting this set up. Another challenge I know I will face is finding a local contractor that is able and willing to design the details of this system. What other challenges am I potentially missing?
Is it possible to make this work as described? If not, are there sensors and/or monitors available to help? I know anything is possible (within reason) with an unlimited budget but is this going to happen for about 40K?
Systems that I am considering to either supplement or substitute part of the system are:
multiple Mini splits heads
high velocity ducts
Ceiling fans to move cold air pooling near the floors
The home is just under 4000 square feet, 5 beds 5.1 baths. I am currently thinking of using solar with battery back up to achieve netzero energy. Please let me know if I am missing anything or you would like a picture of my plans to help. Thank you kindly in advance for your time and consideration.
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