Hi. I can’t find a proper diagram for ventilation of cold room with 2 openings, and one duct hanging down. Anyone?
That looks like a diagram for combustion air. Cold rooms are notorious for mold growth. You would have better luck consulting with a local licensed HVAC contractor.
2 Likes
Hi, Emil Tchilev .
Why you leave InterNACHI?
What will the cold room be used for?
Ideal cold rooms should have proper insulation method, good ventilation/curculation to prevent excessive moisture buildup, that can lead to bacterial/mold growth, and be sealed.
Hi Robert
I never left InterNACHI, but I stopped being a paying member in 2019.
Many old houses have cold rooms below concrete decks, and I can’t find the diagram showing a duct hanging from one of the vents [when installed on the same wall].
Should we start calling you Robert?
The Modern day version…
Thanks. I have this one, but it is showing a basement room, separated with walls. Nothing to do with the Canadian cold rooms below concrete decks. I use it with cropped ceiling, but I find it insufficient.
However, your answer is perfect for my unclear question. 
You building a cold room, Emil?
That’s true. The ventilation/curculation is on apposing side walls.
Typically erected with poured concrete or CMU-block by southern European immigrants for drying meats, vegetables and wine production. Curing meats with Salts would drive down the humidity.
This dehydration process preserves the meat by reducing the water available for bacterial growth. The salt itself is hygroscopic meaning it attracts and binds to water molecules, both within the meat and from the surrounding environment, which contributes to the overall reduction of moisture. Fruits hung on hemp rope or thick twine by the vine and roots.
Temperature must be regulated around mid 50’s F and humidity depending upon what is being stored.
Many of my Italian friends and parents insulated stud wall and left the concrete open. They monitored the cold rooms daily to insure longevity.