Designing a Passive Make-Up Air System
Hi! I am a DIY homeowner, who is in the middle of a planning project for a new kitchen which I am GCing myself.
We are considering purchasing a new, 48” dual fuel range and a corresponding 1000-1200cfm vent hood. In doing my research, I understand that I need to supply make up air to compensate for this hood.
We live in Georgia, so I am not planning on heating and/or routing this through my HVAC system, and instead am looking at a stand-alone, passive system using a 10” duct with automatic damper, etc.
My question for you is whether it’s best to split the MUA system to be balanced on each side of the range, with outlets in the toe kicks directly to the left and right cabinets to the oven/range or one large outlet which is farther away, but would be in kitchen in a wall.
The toe kick solution is frankly easier for me to access via basement, but I’d like to do two, 6” take offs from the main 10” trunk line to accomplish this. Possible?
Many thanks for your input. Make up air systems are the biggest mystery in home building/planning! Even my HVAC contractor wasn’t confident in what I was asking!
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