Broan Model 504 10-Inch Vertical Discharge Utility Fan, 350 CFM, 6.5 Sones Review

Broan 10" Vertical Discharge fan.

Since this unit discharges upward, you'll need an unfinished attic, or similar space, directly above the fan.I installed a Broan 472 Backdraft Damper/Reducer on top of the fan, which reduces the fan's top 10" opening to 8"; used 8" galvanized duct work, and routed it through an 8" roof vent [also] with a damper.The fan itself contains NO back-draft damper.

Pros:

- It works acceptably.

- Painted sheet-metal steel body and mounting brackets, are strong.

- Grille looks good.

- The fan assembly has an integral external electric box to receive 14/2 cable from your wall switch.The fan motor has a 4" cord which plugs into a dedicated "receptacle" inside the housing, enabling the fan motor to be replaced by simply unplugging it and removing two mounting screws.

Cons:

- The rushing air through the fan is anything but quiet.This is because the fan blade is attached directly to the motor shaft, turning the fan blade at high speed.Fans using lower-speed belt-driven blowers are much quieter.

- The fan motor doesn't work with a multi-speed or variable-speed switch.I.e., connected to a 3-speed wall switch, the fan only comes on when the switch is set to high.

Other:

- I made a plywood and 2x4 frame to support the fan assembly, using the built-in brackets to support it.I cut a 10-3/8" round hole in 3/4" plywood, set the fan housing just below the finished ceiling, and used joint compound to feather the rim to the ceiling level (and seal the gap around the fan housing).A square or rectangular fan would have been easier to install than this round unit.

- You'll need a 10 INCH GREASE FILTER, if the fan is to be installed in a kitchen.

Summary.

If I had it to do over again, I would have bought a quieter fan such as the Panasonic WhisperCeiling 290 CFM Ceiling Mounted Fan - FV-30VQ3, and made my own grease filter. The Panasonic costs nearly twice as much, but is only 2 Sones, while this Broan is a whopping 6.5 Sones; a huge difference in sound level.

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Product Description:
Broan-NuTone 504 10" Vertical Discharge Fan Since their beginning in 1932, Broan has pioneered many of the product innovations now established as standards of the industry. Today, Broan carries on the commitment to provide the finest products in the industry.Efficient, high-performance for ceiling installations. Offered in two sized to meet various room requirements. Eliminate humidity from laundry rooms, tobacco smoke from rec rooms and workshops, or cooking fumes from kitchens with Broan's high-efficiency utility ventilators.Broan-NuTone 504 10" Vertical Discharge FanFeatures:; Utility Fans, Vertical Discharge; 350 CFM, 10" Fan, 6.5 Sones, 13-1/2" square plastic grille; 350 CFM 6.5 Sones; Installs easily between ceiling joists; Fits 10" round duct ?ó?é¼?Ç£ use Model 472 transition/damper (available separately) for 8" round duct.

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