NEW Model 4400A Fan-Assist, Evaporative Humidifier

For home sizes up to 4,400 square feet

Key Specifications

Part Number: 5961
Type: Humidifier
Typical Application: Forced Air - Ventilation
Gallons Per Day: up to 19
Control: Automatic / Wi-Fi / APP
Vapor Pad Size: 35
Dimensions (inches): 15.75 H x 16.63 W x 6.75 D
Weight (pounds): 10
Plenum opening (inches): 9 1/8 W x 12 H
Power (volts): 24
Warranty (Years): 5 years

Maintenance

Replace 1-2 times per season

Features

A super quiet, cross-flow fan
A safety switch that removes power from the unit when the door is opened
Maximum Humidity Output Through:
- Low-profile cover that forces air directly through the Vapor Pad® at its warmest point
- Stainless steel distributor tube for cold or hot water supply
- Redesigned cover and chassis to direct hot furnace air directly through the Vapor Pad®
- Reduced Vapor Pad® frame for maximum pad exposure
Easy Maintenance Through:
- Snap-in-place, easy lift-off cover
- Hinged door
- Sturdy two-piece Vapor Pad® frame that easily pulls apart to release & replace the Vapor Pad®

Your furnace sends warm air through the humidifier and a water-soaked Vapor Pad®, where a fan assists the evaporative process by pulling air through the Vapor Pad®. Newly-moistened air is then delivered throughout your home via your home’s duct system. Breathe Healthier® with a GeneralAire® 4400A Evaporative Humidifier.

Other Information

Patented design
Type: fan-assist, evaporative
Gallons per day: 19 (based on 120° F plenum temperature)
Dimensions (inches): 15.75 H x 16.63 W x 6.75 D
Weight (pounds): 10
Fan dB: 48
Vapor Pad® replacement: GA35 (GFI #7902)
- Replace 1-2 times per season
For home sizes up to 4,400 square feet
Plenum opening (inches): 9 1/8 W x 12 H
Pallet quantity (units): 30
Installation: vertical supply plenum only
Control: GFX4 digital automatic-control humidistat; controls the furnace blower motor
Power (volts): 120
Warranty (years): 5

4400A Fan Assist Evaporative Humidifier Comparison 4400A_Fan_Assist_Evaporative_Humidifier_Comparison.pdf
4400A Fan Assist Evaporative Humidifier Spec Sheet 4400A_Fan_Assist_Evaporative_Humidifier_Spec_Sheet.pdf
4400A Fan Assist Evaporative Humidifier Trifold 4400A_Fan_Assist_Evaporative_Humidifier_Trifold.pdf
4400A Install Manual 4400A_Install_Manual.pdf
8503 Rev3 - Instructions, InDesign, Artwork, File Preparation - KMW, 30Sept2025 8503_Rev3_-_Instructions_InDesign_Artwork_File_Preparation_-_KMW_30Sept2025.pdf

Part Number: 5961
Type: Humidifier
Typical Application: Forced Air - Ventilation
Fan dB: 48
Home Size: 4,400 SQFT
Gallons Per Day: up to 19
Control: Automatic / Wi-Fi / APP
Vapor Pad Size: 35
Maintenance: Annual Vapor Pad replacement
Dimensions (inches): 15.75 H x 16.63 W x 6.75 D
Weight (pounds): 10
Plenum opening (inches): 9 1/8 W x 12 H
Pallet quantity (units): 30
Typical Installation: vertical supply plenum only
Power (volts): 24
Warranty (Years): 5 years
Manufacturer: GeneralAire
Model Name: 4400A
Style: Fan-Assisted

PARTS

Part Name	Ref #	GFI #	Qty Req'd	Price
GA35 Vapor Pad	7902	7902	9399	$29.99
4200-10 Spout for 3200, 4200, & 4400A	7231	4200-10	99993	$0.73
4200-21 Distribution Tube Assembly	7235	4200-21	99970	$10.37
4200-15 Distribution Trough	7234	4200-15	99952	$2.96
4200-14 Drain Pan	7233	4200-14	99982	$9.49
4400-01 Chassis for 4400A	7241	4400-01	100000	$36.48
4400-06 Crossflow Fan Assembly	7240	4400-06	100000	$102.19
4400-07 Fan Motor Cover for 4400A	7242	4400-07	100000	$33.44
4400-08 Air Flow Adapter for 4400A	7243	4400-08	100000	$6.76
4400-11 Wire Harness Assembly for 4400A	7244	4400-11	100000	$17.21
4400-09 Motor Mount for 4400A	7246	4400-09	100000	$22.86
4400-12 Fan Motor Shield for 4400A	7247	4400-12	100000	$4.14
4400-13 Cover for 4400A	7248	4400-13	100000	$56.84
4400-22 Pivot Pin for 4400A	7249	4400-22	100000	$1.59
Fan Motor Wiring Kit for 4400A	7250	7250	100000	$21.15
4400-05 Solenoid Valve for the 4400A	7224	7224	99997	$64.77
GFX5 Automatic Digital Humidistat	7172	GFX5	100000	$301.95

GA35 Vapor Pad

GFI# 7902 Ref # 7902

$29.99 Qty Req'd: 9399

4200-10 Spout for 3200, 4200, & 4400A

GFI# 4200-10 Ref # 7231

$0.73 Qty Req'd: 99993

4200-21 Distribution Tube Assembly

GFI# 4200-21 Ref # 7235

$10.37 Qty Req'd: 99970

4200-15 Distribution Trough

GFI# 4200-15 Ref # 7234

$2.96 Qty Req'd: 99952

4200-14 Drain Pan

GFI# 4200-14 Ref # 7233

$9.49 Qty Req'd: 99982

4400-01 Chassis for 4400A

GFI# 4400-01 Ref # 7241

$36.48 Qty Req'd: 100000

4400-06 Crossflow Fan Assembly

GFI# 4400-06 Ref # 7240

$102.19 Qty Req'd: 100000

4400-07 Fan Motor Cover for 4400A

GFI# 4400-07 Ref # 7242

$33.44 Qty Req'd: 100000

4400-08 Air Flow Adapter for 4400A

GFI# 4400-08 Ref # 7243

$6.76 Qty Req'd: 100000

4400-11 Wire Harness Assembly for 4400A

GFI# 4400-11 Ref # 7244

$17.21 Qty Req'd: 100000

4400-09 Motor Mount for 4400A

GFI# 4400-09 Ref # 7246

$22.86 Qty Req'd: 100000

4400-12 Fan Motor Shield for 4400A

GFI# 4400-12 Ref # 7247

$4.14 Qty Req'd: 100000

4400-13 Cover for 4400A

GFI# 4400-13 Ref # 7248

$56.84 Qty Req'd: 100000

4400-22 Pivot Pin for 4400A

GFI# 4400-22 Ref # 7249

$1.59 Qty Req'd: 100000

Fan Motor Wiring Kit for 4400A

GFI# 7250 Ref # 7250

$21.15 Qty Req'd: 100000

4400-05 Solenoid Valve for the 4400A

GFI# 7224 Ref # 7224

$64.77 Qty Req'd: 99997

GFX5 Automatic Digital Humidistat

GFI# GFX5 Ref # 7172

$301.95 Qty Req'd: 100000

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