The sleeper walls would be honeycombed in nature to facilitate airflow.
Ventilation between floors.
During the summer the glycol ground loop will lower the temperature of your ventilation system s supply air.
If this space is not ventilated the air in it becomes stagnant and humid and the moisture within it begins to condense on the brickwork and flooring.
The most common size duct used is 14 in.
Add a false return grille cut an access hole in the ceiling of the first floor in a central area to gain access to the ducts.
In this video i share with you how i install a hvac air duct floor vent.
Sub floor ventilation many traditional properties are built with a suspended wooden floor which sits above a void air space between the perimeter walls and ground.
This size fits just between most floor joists.
Locating the vent 1.
There are many ways but this is the way i do it efficiently with quality and time.
The recommended minimum area of ventilation required for under a suspended timber floor is 1500mm 2 for every metre of perimeter of the structure.
Locate cross beams between the first and second floors by running the stud finder across the ceiling.
If the ground loop was sized properly it will handle the needs of your hrv.
Occasionally we need to access the ducts between the floors to improve the airflow.
You cut a small hole in the ceiling to check that there.
Cross flow ventilation was traditionally achieved by placing sleeper walls see figure 2 at intervals throughout the sub floor.
Turn off the electric power for the room you are working in.