What is the difference between afg smt-es 3.0 & afg pro-3.0 ? I can't see differences nor different purposes. Is one quieter than the other?

AFG SMT ES 3.0 has an electronically commutated motor (very energy efficient) and the unit comes with Bluetooth capabilities. The AFG PRO 3.0 has a permanent split capacitor motor (still energy efficient) and is operated via an external thermostat.

Can this be mounted in an attic window opening?

This is meant to be mounted on a gable vent. A minimum of 14" * 14", we recommend its a 16" * 16".

What is the draw on low speed?

I am assuming you want to know how many watts the fan uses on the lowest speed? About 25.

Will one fan work or can I use 2 fans

One fan works just fine and if you have a big enough attic with enough intake throughout you can add another. I think one will suffice.

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Quietcool AFG SMT PRO-3.0 Smart Attic Fan for Gable Vents - 2940 CFM - Smart App Control - Thermostat and Humidistat - 20ft Power Cord - Plug-and-play - Two Speed

Quietcool AFG SMT PRO-3.0 Smart Attic Fan for Gable Vents - 2940 CFM - Smart App Control - Thermostat and Humidistat - 20ft Power Cord - Plug-and-play - Two Speed

Product ID: 235827648

Details

Brand
Quietcool
Color
Red
Electric fan design
Exhaust Fan
Mounting Type
gable mount
Power Source
AC
Product Dimensions
16"D x 16"W x

💨2940 CFM max airflow

📱Smart App Control

🔇Ultra-quiet 45 dB noise

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💨 Smart airflow meets silent power — your attic’s new best friend!

WHISPER QUIET OPERATION - Enjoy powerful airflow without the noise—only 45 decibels for peaceful living.
PLUG AND PLAY SIMPLICITY - Effortless installation with a 20ft power cord and no wiring required—get up and running fast.
CONTROL AT YOUR FINGERTIPS - Seamlessly manage fan speeds and settings via intuitive smart app control.
BUILT IN SAFETY EFFICIENCY - Thermostat, humidistat, and fire safety shutoff ensure smart, secure attic climate control.
BREATHE EASY WITH 2940 CFM POWER - Turbocharge attic ventilation for a cooler, fresher home environment.

The Quietcool AFG SMT PRO-3.0 is a high-performance smart attic fan delivering up to 2940 CFM airflow with whisper-quiet 45 dB operation. Featuring two-speed PSC motor control via a dedicated app, it automates ventilation using thermostat and humidistat sensors. Designed for easy plug-and-play installation with a 20ft power cord and built-in anti-vibration mounting, it includes safety shutoff and vent covers to prevent backdrafts, making it an energy-efficient, hassle-free solution for optimal attic climate management.

Specifications

ASIN	B08CVSZKB7
Air Flow Capacity	2940 Cubic Feet Per Minute
Best Sellers Rank	#45,977 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #160 in Household Ventilation Fans
Blade Length	8.25 Inches
Blade Material	Alloy Steel
Brand Name	Quietcool
Collection Name	Electric Fans
Color	Red
Connector Type	AC power cord
Control Method	App
Controller Type	App Control
Customer Reviews	4.5 4.5 out of 5 stars (655)
Electric Fan Design	Exhaust Fan
Finish Type	Finished
Global Trade Identification Number	00811658022029
Included Components	attic fan, smart control hub, vent covers
Indoor Outdoor Usage	Indoor
Installation Type	plug-and-play
Is Product Cordless	No
Item Dimensions D x W x H	16"D x 16"W x 10"H
Main Power Connector Type	AC power cord
Manufacturer	QC Manufacturing, Inc.
Material	Alloy Steel
Model Name	QuietCool 2940 CFM Smart App Controlled 2-Speed Attic Gable Fan
Model Number	AFG SMT PRO-3.0
Mounting Type	gable mount
Noise Level	45 Decibels
Number of Blades	5
Number of Power Levels	2
Number of Speeds	2
Part Number	AFG SMT PRO-3.0
Power Source	AC
Recommended Uses For Product	Bedroom, Indoor
Room Type	Bathroom
Size	16x16x10 inches
Special Features	smart control
Specification Met	Energy Star, UL
Standby Power Shutoff	high
Style	AFG SMT PRO-3.0
Theme	home appliance
UPC	811658022029
Voltage	120 Volts
Wattage	264 watts

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