diferance between 163 and 164?

The 163 is a heater only. The 164 is a heater and exhaust fan.

Can you turn the lights on without using the heat?

Yes. Initially the old device was a light on one switch and a fan on anothe. rWe wired the bathroom light and fan together on one switch and the heat lamp on the other. Mike 2/7/2013

Will this heat up a bathroom even with high vaulted ceilings?

It works fine for us. My bathroom ceiling vaults from 10' on one side to 12' on the other. The infrared lamp seems to provide plenty of heat for individuals. It is not designed to be a space heater.

Is this an actual exhaust fan that connects to the outside or does it blow the heat inward?

It blows to the outside - not to remove heat but to remove moisture from a bathroom. The purpose of the unit is two fold. One, it ventilates air from the bathroom to outside. It attaches to ducting in the attic and to a vent on the roof or wall to the outside. The heat lamps radiate heat to keep you warm before, after, or during bathing. The black piece is where the ducting attaches in the attic. It as a damper included. It closes off the outside air when the vent fan is turned off.

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Broan-Nutone 164 Bulb Heater and Fan, Energy-Saving 2-Bulb Infrared Type IC Ceiling Heater, White, 250-Watt, 4.0 Sones, 70 CFM

Broan-Nutone 164 Bulb Heater and Fan, Energy-Saving 2-Bulb Infrared Type IC Ceiling Heater, White, 250-Watt, 4.0 Sones, 70 CFM

Product ID: 8225857

Details

Brand
Broan-NuTone
Color
White
Form Factor
Flush Mount
Indoor/Outdoor Usage
Indoor
Special Feature
Energy

💨70 CFM Quiet Ventilation

🔥500W Infrared Heat Power

⚙️Type IC Ceiling Flush Mount

Description

🔥 Elevate your bathroom vibe with instant warmth and whisper-quiet airflow!

EFFORTLESS INSTALLATION - Adjustable steel housing with keyhole slots and plug-in motor simplifies professional setup.
INSTANT INFRARED WARMTH - Dual 250W bulbs deliver fast, energy-saving radiant heat—no thermostat hassle.
SLEEK CEILING INTEGRATION - Type IC design installs flush with ceiling for a clean, modern bathroom aesthetic.
WHISPER QUIET VENTILATION - 70 CFM fan runs at a subtle 4.0 sones, clearing steam without noise disruption.
CUSTOMIZABLE COMFORT CONTROL - Operate heater and fan independently or together to tailor your perfect environment.

The Broan-NuTone 164 is a 2-bulb infrared ceiling heater and fan combo designed for energy-efficient, instant bathroom warmth and effective ventilation. Featuring dual 250-Watt infrared bulbs (not included), a 70 CFM fan operating quietly at 4.0 sones, and a sleek Type IC flush-mount design, it offers customizable comfort with separate controls for heat and ventilation. Its sturdy steel housing and adjustable mounting brackets ensure straightforward installation, making it a smart upgrade for modern bathrooms seeking cozy warmth and steam-free freshness.

Specifications

ASIN	B000VTSN0E
Amperage	4.5 A
Best Sellers Rank	#53,487 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #36 in Heaters & Heater Accessories
Brand	Broan-NuTone
Brand Name	Broan-NuTone
Color	White
Customer Reviews	4.3 out of 5 stars 755 Reviews
Form Factor	Flush Mount
Fuel Type	Electric
Global Trade Identification Number	00026715002603
Heat Output	100 °C
Heating Coverage	65 sq ft
Heating Element	not_applicable
Heating Method	Radiant
Included Components	Fan
Indoor Outdoor Usage	Indoor
Indoor/Outdoor Usage	Indoor
Item Dimensions D x W x H	5.63"D x 10.25"W x 0.88"H
Item Type Name	Type IC Infrared Two-Bulb Ceiling Heater with Fan
Item Weight	8.6 pounds
Manufacturer	Broan
Max Temperature Setting	100 °C
Model Number	164
Mounting Type	Ceiling Mount
Number of Items	1
Number of Packs	1
Number of Speeds	1
Part Number	164
Power Source	AC
Recommended Uses For Product	not_applicable
Room Type	comfort_room
Special Feature	Energy Efficient
Special Features	Energy Efficient
UPC	026715002603
Unit Count	1 Count
Voltage	120 volts
Warranty Description	Warranty

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