125mm HRV Duct Adapter – Diffuser Pass-Through for Built-In Cabinets (40mm Offset)
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125mm Duct Pass-Through for HRV systems. Extends the diffuser 40mm to clear built-in cabinet or wall obstruction.
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Model information
- Source
- Printables
- Category
- Other House Equipment
- License
- Creative Commons — Attribution
This model is a custom pass-through adapter designed for 125mm Heat Recovery Ventilation (HRV) ductwork. It specifically solves installation conflicts where the ceiling air vent collides with the construction of built-in furniture.
Purpose and Solution:
Original Problem: The original placement of the HRV ceiling outlet was obstructed by a newly installed built-in cabinet, preventing the functional installation of the air diffuser.
Model Function: This is an extended spacer/connector designed to guide the ductwork through the ceiling plasterboard and the cabinet structure. The model increases the diffuser's reach by 40 mm (adjustable based on cabinet material thickness).
Result: It allows the full and functional installation of the adjustable diffuser on the ducting that is partially obscured by furniture. This offset ensures proper air distribution into the room and maintains the full range of airflow regulation. The model is sized for standard 125mm ducting.
Printing Recommendations:
For best performance and rigidity, print using PETG, especially if exposed to variable temperatures. For most indoor applications, PLA is also sufficient.
Settings: 0.2 mm layer height.