Broan-NuTone 509S Through-the-Wall Ventilation Fan - 200 CFM

In this review the Broan-NuTone 509S is assessed as a straightforward, purpose-driven through-the-wall ventilation fan best suited for garages, small shops and utility rooms. The single biggest reason to buy is its simple, no-duct installation and built-in on/off switch, which makes it a fast way to add reliable exhaust airflow where wall discharge is possible. Installers and homeowners who need to remove heat, humidity or odors from a room up to about 195 sq. ft. will find the unit effective and durable without extra duct runs.

Key Features

• Built-in wall cap: The integrated exterior wall cap eliminates the need for separate ducting and reduces install time by providing direct outside discharge.
• On/off switch on cover: The cover-mounted switch removes the need to wire a separate wall switch, simplifying installation for retrofit and new work.
• 200 CFM airflow: Delivers sufficient ventilation for a one-car garage or rooms up to roughly 195 sq. ft., moving air quickly to reduce heat and moisture.
• Galvanized steel housing: Durable construction offers protection against the elements for through-wall use and long service life.
• Twist-lock motor assembly: The motor assembly is engineered for a fast, tool-friendly twist-lock removal and replacement for service or cleaning.
• Built-in bird screen: An exterior screen keeps birds and debris out while maintaining clear airflow to the outside.

Who It's For

The 509S is aimed at homeowners, hobbyists and light contractors who need a practical, no-fuss exhaust fan for garages, laundry rooms, small workshops or rec rooms. Its 200 CFM rating matches well to single-car garages and spaces up to about 195 sq. ft., and the built-in wall cap is ideal where a short, direct discharge path to the outside is available.

It is not the best choice for ducts routed long distances, multi-room HVAC integration, or when whisper-quiet operation is required; some users report the unit is noticeably loud in small, confined rooms. If low noise or a ducted central system is a priority, consider in-line or quieter bathroom fans instead.

Pros & Cons

Pros

• Easy installation with built-in exterior cap and cover switch saves time and wiring.
• Good airflow at 200 CFM for quick removal of moisture and odors in targeted rooms.
• Sturdy galvanized housing and bird screen improve durability for wall-mounted use.
• Serviceable motor assembly with twist-lock design simplifies maintenance.

Cons

• Noise level is mixed among users; expected to be louder than specialty quiet fans.
• Requires cutting a hole in the wall and is not suited to long duct runs or central system use.

Specifications

Brand	Broan-NuTone
Airflow	200 CFM
Sones	8.5
Duct size	8 in
Housing	Galvanized steel
Wall thickness fit	4.5 in to 9.5 in
Fan housing dimensions	14.25 in x 14.25 in x 8 in

Our Verdict

The Broan-NuTone 509S is a competent through-the-wall fan for anyone who needs dependable exhaust without the complexity of ductwork or extra wiring. It offers solid airflow, durable construction and a simple install, making it good value for garages and utility spaces where noise is acceptable and a direct wall discharge is feasible.

Frequently Asked Questions

Does this fan need ducting?
The unit includes a built-in exterior wall cap so no additional ducting is needed for standard through-wall installation.

What room size is appropriate?
At 200 CFM it is suitable for spaces up to about 195 sq. ft., such as one-car garages, small shops and laundry rooms.

Is the unit quiet?
Noise reports are mixed; expect louder operation than specialty quiet fans since the unit measures 8.5 sones, so it may be noticeable in small rooms.