HOT ! BROAN-NuTone FIN-180B Fan

The Broan-NuTone FIN-180B FreshIn basic supply fan provides a robust 180 CFM solution for maintaining balanced indoor air quality in residential and light commercial applications. Engineered for mechanical makeup air systems, this unit helps contractors meet ASHRAE 62.2 standards and regional building codes regarding fresh air ventilation. The low-profile inline design allows for versatile installations in tight mechanical closets or attic spaces, utilizing 6-inch round ducting for efficient airflow. This model features a durable galvanized steel housing and a high-efficiency motor designed for continuous operation. When integrating the FIN-180B supply fan, technicians can effectively mitigate negative pressure issues caused by powerful exhaust appliances, ensuring neutral building pressure. The simplified two-wire installation path facilitates rapid setup when syncing with HVAC system blowers or external controls. Reliability and performance make this an essential component for modern tight-envelope construction requiring consistent fresh air intake.

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  Efficient Air Delivery: Delivers a consistent 180 CFM to support large-scale residential ventilation requirements.


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  Compact Footprint: Fits between floor joists or in restricted plenum spaces for flexible mounting.


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  Interlock Compatibility: Easily integrates with existing furnace or air handler circuits for synchronized operation.


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  Code Compliance: Simplifies the process of meeting ventilation rate requirements for LEED and ENERGY STAR certifications.


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  Rugged Construction: Built with high-gauge galvanized steel to withstand demanding mechanical environments.

Common Questions

How do I adjust the airflow on the Broan FIN-180B?
Airflow is typically managed via external speed controllers or by utilizing dampening hardware within the 6-inch duct run to match the specific CFM requirements of the living space.

Can this fan be used to provide combustion air?
While designed for ventilation and makeup air, it must be sized according to total appliance BTU ratings and local mechanical codes if used in proximity to gas-fired equipment.

What is the proper orientation for installation?
The unit can be mounted horizontally or vertically; however, ensure the access panel remains unobstructed for routine maintenance and motor inspection.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.