could you put in on a window ac?

No, it’s made for an ac register

can i install it on window?

I wouldn't use window to hold it in place but I don't see why you couldn't use it in window.

The plug felt pretty hot after this was running for a while. Is that normal?

Mine didn't feel hot so probably you should contact customer service for help

Will the duct fan turn on or off automatically?

The duct booster fan will automatically turn on or off based on the temperature of the air in the duct. It has a heating setting and a cooling setting. when the air in the duct rises to the heating set-point or drops below the cooling set-point, the device turns on and runs.

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BIOWIND Quiet Smart Register Booster Fan Fits 4" x 10" Vent Opening, White

Product ID: 521905300

Details

Brand
BIOWIND
Color
White
Electric fan design
Exhaust Fan
Mounting Type
Floor Mount
Power Source
Corded
Product Dimensions
1.96"D x x

💨140 CFM airflow - powerful & efficient

🔇16 dBA noise - whisper-quiet operation

🎛️10-speed remote control - precise comfort

$149.52

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Description

🌬️ Upgrade your airflow game—comfort meets smart tech in silence!

EFFORTLESS COMFORT - 10-speed remote lets you customize airflow without leaving your seat
SMART CLIMATE CONTROL - Auto on/off with temperature sensor for perfectly balanced rooms
COMPACT EASY INSTALL - Fits standard 4"x10" vents, plug & play setup for instant upgrade
SLEEK DURABLE DESIGN - Premium anodized aluminum frame with CNC machining for modern elegance
ENERGY SAVING EFFICIENCY - Maximizes HVAC output while cutting energy costs with power-off memory

The BIOWIND Quiet Smart Register Booster Fan is a sleek, energy-efficient ventilation solution designed for 4"x10" vent openings. Featuring a powerful 140 CFM airflow, ultra-quiet 16 dBA operation, and a smart temperature sensor with programmable LED control, it automatically balances room temperatures. The fan includes a 10-speed remote for personalized comfort and a durable anodized aluminum frame that blends seamlessly with modern interiors. Easy to install and energy-saving, it enhances HVAC efficiency while reducing costs.

Specifications

ASIN	B0BS6H6XV2
Air Flow Capacity	140 cfm
Best Sellers Rank	#4,283 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Household Ventilation Fans
Blade Material	Plastic
Brand Name	BIOWIND
Collection Name	AirBoost T4
Color	White
Connector Type	Standard AC power connector
Control Method	Remote
Controller Type	Button Control
Customer Reviews	4.3 4.3 out of 5 stars (2,793)
Electric Fan Design	Exhaust Fan
Finish Type	"Glossy White" or "Matte White"
Form Factor	Rectangular
Included Components	Cord, Remote
Indoor Outdoor Usage	Indoor
Installation Type	Floor Mount, Wall Mount
Item Dimensions D x W x H	1.96"D x 11.54"W x 5.51"H
Item Weight	2.1 pounds
Main Power Connector Type	Standard AC power connector
Manufacturer	BIOWIND
Material	Aluminum
Model Name	AirBoost T4
Model Number	AirBoost T4
Mounting Type	Floor Mount, Wall Mount
Noise Level	16 db
Number of Blades	7
Number of Packs	1
Number of Power Levels	10
Number of Speeds	11
Power Source	Corded Electric
Recommended Uses For Product	Indoor
Room Type	Bedroom, Dining Room, Home Office, Kids Room, Living Room
Size	4" x 10"
Special Features	Remote Controlled
Specification Met	CE
Speed	10 rpm
Style	Modern
Switch Type	Remote Control
Theme	Modern
Unit Count	1 Count
Voltage	100 volts
Wattage	6 watts

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TrustScore 4.5 | 7,300+ reviews

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