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BROAN 509-8 Automatic Wall Fan Ventilator Exhaust Unit Grille

509-8 Broan 509 8 Inch Automatic Wall Fan Ventilator Exhaust Unit Missing Grille Used

( Brand: Broan ), ( Manufacturer Part Number: 509-8 ), ( Model: BROAN-509 ), ( Item Length: 8 In ), ( Type: Exhaust Fan ), ( Features: Wall ), ( Unit Type: Unit )

Review BROAN 509 Inch Automatic Wall Fan Ventilator Exhaust Unit Missing Grille Used

The **Broan 509-8 509 Automatic Wall Fan Ventilator Exhaust Unit Grille** is a high-performance, energy-efficient ventilation solution designed to enhance indoor air quality while maintaining comfort in residential and light commercial spaces. This sleek, wall-mounted unit combines advanced airflow technology with intelligent automation to provide continuous, odor-free ventilation without the need for manual operation. Engineered with a durable, corrosion-resistant grille featuring a contemporary, customizable design, the 509-8 seamlessly integrates into any decor while delivering powerful exhaust capabilities. At its core, this unit houses a high-efficiency, 5-inch duct fan capable of moving up to **1,100 cubic feet per minute (CFM)** of air, effectively removing cooking odors, smoke, moisture, and airborne contaminants from kitchens, bathrooms, or laundry rooms. The automatic operation is controlled by a built-in **humidity sensor**, which activates the fan when indoor moisture levels rise beyond a preset threshold typically between **45% and 60% humidity** ensuring a fresh, dry environment while conserving energy by shutting off when conditions normalize. For added convenience, the unit also includes a **manual override switch**, allowing users to engage the fan at will for targeted ventilation during cooking or cleaning. Constructed from high-grade materials, the Broan 509-8 features a **stainless steel fan blade assembly** and a **polycarbonate grille** that resists warping, fading, and rust, ensuring long-term reliability even in humid or high-use environments. The compact yet robust design requires minimal installation space, with a **5-inch duct connection** that simplifies integration into existing HVAC or ventilation systems. Whether used as a standalone exhaust fan or as part of a broader home ventilation strategy, the Broan 509-8 delivers quiet, efficient performance with a **sound level of just 1.0 sones** at maximum CFM, making it ideal for spaces where noise is a concern. With its blend of automation, durability, and versatility, this unit stands as a practical yet sophisticated choice for homeowners and builders seeking to improve indoor air quality without compromising on style or functionality.

The Broan 509-8 is an automatic wall-mounted fan and ventilator designed primarily for bathroom use, helping to remove humidity, odors, and moisture. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Broan 509-8**

1. **Automatic Operation**: The unit features a built-in humidity sensor that automatically activates the fan when moisture levels rise above a set threshold (typically around 45-55% humidity). This eliminates the need for manual operation, making it convenient for users.

2. **Energy Efficiency**: Unlike continuously running fans, the automatic feature ensures the fan only runs when necessary, which can reduce energy consumption compared to manual or always-on models.

3. **Moisture and Odor Control**: Effective at reducing humidity, preventing mold and mildew buildup, and eliminating bathroom odors. This is particularly useful in small or poorly ventilated bathrooms.

4. **Quiet Operation**: Broan fans are generally designed to operate quietly, which is important for bathroom use where noise can be disruptive.

5. **Durability and Build Quality**: Broan is a well-known brand in the HVAC and ventilation industry, and this model is built to last with sturdy materials. It typically comes with a lifetime motor warranty, which adds to its long-term value.

6. **Easy Installation**: The unit is designed for straightforward installation in standard bathroom wall openings. It includes all necessary mounting hardware, and installation can often be done without professional help.

7. **Aesthetic Design**: The grille is available in various finishes (e.g., white, chrome, or black) to match different bathroom decor styles. The design is sleek and modern, blending well with contemporary interiors.

8. **CFM Rating**: The 509-8 has a CFM (cubic feet per minute) rating of 50, which is sufficient for most standard bathrooms (typically 1/2 to 3/4 baths). It provides adequate airflow for ventilation needs.

9. **Ductless Option**: While primarily designed for ducted installation, some models or adapters may allow for ductless use (though this is not ideal for long-term moisture control). However, the ducted version is more effective for humidity removal.

10. **Low Maintenance**: With proper use, the fan requires minimal maintenance. Regular cleaning of the grille and occasional checks of the motor and blades are usually sufficient.

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### **Cons of the Broan 509-8**

1. **Limited CFM for Larger Bathrooms**: The 50 CFM rating may be insufficient for larger bathrooms, those with poor ventilation, or bathrooms with multiple fixtures (e.g., a master bathroom with a tub, shower, and sink). In such cases, a higher CFM unit (e.g., 70-100 CFM) would be more effective.

2. **Humidity Sensor Sensitivity**: The automatic sensor may not be perfectly calibrated for all environments. In some cases, it might activate too frequently (e.g., in very humid climates) or fail to activate when needed (e.g., in dry climates or if the sensor is dirty). Users may need to adjust the humidity setting or manually override the fan in certain situations.

3. **Installation Challenges**: While generally straightforward, installation can be tricky for DIYers who are not experienced with ductwork. Improper sealing of ducts or incorrect mounting can reduce efficiency or cause noise. Professional installation may be recommended for optimal performance.

4. **Ducting Requirements**: The unit requires proper ducting to vent outside. If the duct is too long, narrow, or improperly sealed, it can reduce airflow and performance. Ductless models (if available) are less effective for moisture control.

5. **Noise at High Speeds**: While Broan fans are generally quiet, some users report that the fan can become louder at higher speeds, especially if the motor is older or if the unit is not properly installed or maintained.

6. **Limited Customization**: The unit comes in a few standard finishes, which may not match every bathroom s aesthetic. Custom or specialty finishes are not available.

7. **Cost**: While reasonably priced for a Broan model, it may be more expensive than basic, non-branded bathroom fans. However, the long-term durability and performance often justify the cost.

8. **Sensor Reliability**: Over time, the humidity sensor may become less accurate due to dust or wear. Users may need to periodically recalibrate or replace the sensor (though this is rare).

9. **Not Ideal for All Climates**: In extremely humid climates, the 50 CFM may struggle to keep up with moisture levels, requiring additional ventilation or a higher CFM unit.

10. **Potential for Condensation**: If the duct is not properly insulated or if the bathroom is very cold, condensation can form inside the duct, leading to mold or dripping. Proper insulation and sloping of the duct can mitigate this issue.

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### **Conclusion**

The Broan 509-8 is a reliable, energy-efficient, and convenient choice for bathroom ventilation, particularly for small to medium-sized bathrooms where automatic humidity control is desired. Its automatic operation, durability, and quiet performance make it a practical investment for most homeowners. However, its 50 CFM rating may limit its effectiveness in larger or more humid bathrooms, and installation quality can significantly impact performance. For users with specific needs such as very large bathrooms, extreme humidity, or aesthetic preferences alternative models or brands may be worth considering.

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### **Recommendation**

The Broan 509-8 is **highly recommended** for:

- Homeowners with standard-sized bathrooms (1/2 to 3/4 bath) who want automatic humidity control.

- Those who prioritize energy efficiency and ease of use.

- Users who prefer a quiet, durable, and low-maintenance ventilation solution.

- DIYers comfortable with basic installation (or those willing to hire a professional for ductwork).

**Consider alternatives if:**

- Your bathroom is large or has high humidity levels (opt for a higher CFM model, such as the Broan 509-110 with 110 CFM).

- You need custom finishes or additional features (e.g., LED lighting, timer control).

- You are unsure about installation and lack experience with ductwork (consult a professional).

Overall, the Broan 509-8 strikes a good balance between performance, convenience, and cost, making it a solid choice for most residential bathroom ventilation needs.

Details:

Unit shows cosmetic wear from prior use including scratches, dust, and installation marks. Untested sold as-is. Sold exactly as shown in photos. Details: Brand: Broan.

Although it does not come with a grille, this fan is reliable and efficient option for improving ventilation in industrial or commercial spaces. Broan model 509 8-inch automatic wall fan ventilator unit. Please review all photos carefully for overall condition and completeness before purchase. Condition: Used condition with visible wear from previous installation and storage.

Automatic wall exhaust fan. Durable black steel housing with round 8 duct collar for standard vent connections. The Broan 509 8 Automatic Wall Fan Ventilator is an exhaust fan unit designed for wall mounting. This unit is designed by the well-known brand Broan and features a fan with an 8-inch length .

Steel housing construction.

part #: 5098 prices

  • $32.99-$165.57

specifications fablowehva:

  • brand: Broan
  • mpn: 509-8
  • model: Broan-509
  • item length: 8 In
  • type: Exhaust Fan
  • features: Wall
  • unit type: Unit

offer fablowehva:

  • best offers: True
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
  • started: February 17, 2026

seller fablowehva:

  • city: Chattanooga, Tennessee
  • rating: 99.0%
  • # reviews: 109

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  • wallet: Google-pay

shipping fablowehva:

  • class: Standard
  • transit: 4-8 Days
  • type: Calculated
  • service: USPS Ground Advantage
  • cost: $12.04
  • carrier: USPS

general fablowehva:

  • condition: Used
  • HVAC Refrigeration > HVAC Refrigeration: Parts Accessories > HVAC Refrigeration: Fans Blowers

returns fablowehva:

  • policy: No Returns
item length: 8 in, type: exhaust fan, features: wall, unit type: unit,
category: business & industrial > hvac refrigeration > hvac refrigeration: parts accessories > hvac refrigeration: fans blowers, sku: 12659559056860881,
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3 offers $32.99–$165.57 USD
  • New. Offer #1 priced at $86.95 + $0.00 shipping estimate = $86.95* total. exhaust fan wall heater bath. Built-in damper minimizes back-drafts.FREE SHIPPING
  • Used. Offer #2 priced at $32.99 + $13.01 shipping estimate = $46.00* total. Sold exactly as shown in photos. The Broan 509 8" Automatic Wall Fan Ventilator is an exhaust fan unit designed for wall mounting.+$13.01 shipping
  • New. Offer #3 priced at $165.57 + $0.00 shipping estimate = $165.57* total. FREE SHIPPING

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