HVAC options for addition above garage
We are adding a master suite above the garage in NJ. Our 2 story house has forced hot air which for a variety of reasons cannot be expanded to handle the additional 700 sq ft. An additional furnace cannot be placed in the basement. Our contractor suggested putting a 80% in the attic or in the attached garage. I am not happy with either given everything I have read. Attic- mold issue, ice dams, etc. garage – fumes, etc if the system is not sealed properly etc. We have read about the mini split systems to handle this space and wondering given where we are located if this system would handle heating and cooling without another source. Is it the better solution given the only other possible places for the furnace are the worst 2 locations? Thanks!
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