Broan 679 Ventilation Fan and Light Combination – Accelerate Net Zero

The Broan 679 is a compact, all-in-one ventilation solution designed for bathroom exhaust and ambient lighting. This model combines a quiet fan with a built-in light, offering a convenient, space-saving option for modern homes. Its compact form, ease of installation, and reliable performance make it a popular choice for retrofit and new construction projects where a single unit handles both ventilation and illumination.

Overview

The Broan 679 integrates a 70 CFM exhaust fan with a 100-watt lighting fixture in a single, low-profile housing. It is designed to install in standard ceiling electrical boxes or above the ceiling, depending on the project. The unit prioritizes ease of maintenance, with accessible components and straightforward wiring. As a combined unit, it reduces clutter and can help meet bathroom code requirements for both ventilation and illumination in one appliance.

Key Features And Benefits

  • All-In-One Design: Combines ventilation and lighting to save space and simplify wiring.
  • Ventilation Capacity: Approximately 70 CFM, suitable for compact bathrooms up to about 100 square feet with standard ceiling heights.
  • Lighting: Built-in lighting fixture compatible with common bulbs; provides ambient illumination without needing separate fixtures.
  • Quiet Operation: Engineered to minimize noise while delivering reliable exhaust performance.
  • Installation Flexibility: Works with standard electrical boxes and can be wired for various control configurations (pull chain, switch, or timer options depending on installation).

Specifications

Specification Details
CFM Approximately 70 CFM
Lighting Built-in lighting (100-watt equivalent range, depends on bulb type)
Power Standard electrical supply (voltage varies by model region)
Installation Ceiling-mounted, compatible with typical joist spacing and attic access
Control Typically wired to a wall switch or integrated control option
Noise Low to moderate sone range for a unit of this type

Installation Considerations

Before installation, verify ceiling cavity space, duct routing, and building codes in the area. The Broan 679 is designed for straightforward mounting in standard joist configurations, but ensure there is sufficient clearance for the fixture and duct connections. When wiring, follow the manufacturer’s instructions and local electrical codes. If retrofitting, confirm that the existing ductwork provides an unobstructed path to the outdoors to maximize ventilation efficiency. Consider adding an exterior vent cap to reduce backdrafts and moisture buildup.

Performance And Energy Efficiency

The 70 CFM performance targets typical bathrooms up to 100 square feet with standard ceiling heights. In smaller spaces, it delivers effective moisture removal while maintaining a reasonable noise level. The integration of lighting may influence overall energy use; using efficient bulbs (LED equivalents) can improve energy efficiency and reduce operating costs. For households seeking lower energy consumption, compare the unit’s fan speed and lighting requirements to ensure compatibility with energy-saving bulbs and dimming options if available.

Maintenance And Replacement Parts

Regular maintenance helps sustain performance. Clean the light housing and vent grille periodically to prevent dust buildup that can reduce light output and airflow. Inspect the wiring connections for signs of wear or corrosion, especially in humid bathrooms. Replacement parts, such as the light bulb or fan assembly, may be available through Broan or authorized distributors. When replacing components, ensure compatibility with the unit’s model number and electrical specifications to avoid compatibility issues.

Comparison With Similar Models

Compared with separate fan and light installations, the Broan 679’s all-in-one design reduces wall clutter and simplifies wiring. However, some users may prefer higher CFM in larger bathrooms or more flexible control options. If higher ventilation capacity or advanced controls are needed, consider alternative models in Broan’s lineup that offer greater exhaust capacity or additional features like humidity-sensing controls and integrated motion sensors. For retrofit projects, assess ceiling depth and ducting to determine whether a larger or differently configured unit would fit.

Troubleshooting Tips

  • Noisy Fan: Check for loose mounting screws and secure duct connections. Clean the grille to remove dust.
  • Light Not Working: Verify bulb compatibility and seating in the socket. Inspect wiring connections at the housing.
  • Weak Ventilation: Inspect the duct path for obstructions, ensure exterior vent is not blocked, and confirm that the unit’s switch or control is functioning properly.
  • Trip Or Electrical Issue: Ensure the circuit is rated for combined load and confirm wiring is correct. If in doubt, consult a licensed electrician.

In summary, the Broan 679 Ventilation Fan And Light Combination offers a practical, space-saving solution for bathrooms that require both exhaust and illumination in a single unit. Its balanced performance, ease of installation, and maintenance-friendly design make it a solid option for many residential bathrooms in the United States. When evaluating this model, consider room size, noise tolerance, and control preferences to ensure it meets the specific needs of the space.