Generalaire Whole-House Humidifiers

Generalaire Whole-House Humidifier
Are you looking for the best whole house humidifier for your home? When many people think of humidifiers, they often think of the portable humidifiers that emit a warm mist to add moisture to the air in a single room. However, there are other humidifiers that offer better protection, as they cover the entire square footage of your home.
With a whole-house humidifier, you can prevent:
- dry skin
- cracked or damaged woodwork
- dry sinuses
- asthma and allergy triggers
Types of Residential Whole-House Humidifiers
With multiple residential whole house humidifier options available, you’re sure to find a great fit for your home! Currently, General Filters offers steam, evaporative bypass, and fan-powered evaporative humidifiers. All of these have different benefits, including coverage area, automatic shutoff, balanced humidity, and more! They utilize your forced-air furnace and ductwork to deliver humidity throughout your home, improving the health and comfort in your home.
Details
- Are you looking for the best whole house humidifier for your home? When many people think of humidifiers, they often think of the portable humidifiers that emit a warm mist to add moisture to the air in a single room. However, there are other humidifiers that offer better protection, as they cover the entire square footage of your home.With a whole-house humidifier, you can prevent:
- dry skin
- cracked or damaged woodwork
- dry sinuses
- asthma and allergy triggers
Types of Residential Whole-House Humidifiers
With multiple residential whole house humidifier options available, you’re sure to find a great fit for your home! Currently, General Filters offers steam, evaporative bypass, and fan-powered evaporative humidifiers. All of these have different benefits, including coverage area, automatic shutoff, balanced humidity, and more! They utilize your forced-air furnace and ductwork to deliver humidity throughout your home, improving the health and comfort in your home.
Evaporative Humidifier
GeneralAire® evaporative, whole-house humidifiers create humidity by passing hot air from your furnace through a water-soaked Vapor Pad® evaporating the water to provide humidity. Bypass humidifiers allow left or right mounting on your furnace, utilizing the ductwork to deliver humidity throughout your home. Several model selections are available for homes up to 4,200 square feet.
As air dries, woodwork throughout your home can crack and become damaged. If you have wood floors, wooden musical instruments, or expensive wooden artwork, evaporative humidifiers can provide protection of these assets throughout the home. Whole house models mean less messy maintenance, optimal moisture output, auto shutoff, and a humidistat to control your home humidifier. For more information about our evaporative humidifier.
Evaporative Humidifier Features
- 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
- Left or right bypass installation option
- Left or right solenoid valve installation option
- Easy Maintenance with snap-in-place, easy lift-off cover
- Sturdy two-piece Vapor Pad® frame that easily pulls apart to release & replace the Vapor Pad®
Fan-Assist Humidifiers
Similar to evaporative humidifiers, but with a fan inside that pulls heated air from the furnace through the Vapor Pad® to enhance the evaporative process. Options accommodate homes up to 3,000 square feet. For more information about our fan-assist humidifiers.
Fan-Assist Humidifier Features:
- UV – stable automotive grade plastic
- Patented water distribution system to ensure maximum evaporative performance
- Shut-off damper
- Stainless steel distributor tube for cold or hot water supply
- Humidity control device
Generalaire 4200A Evaporative Humidifier

Features
- 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
- Left or right bypass installation option
- Left or right solenoid valve installation option
- Easy Maintenance Through:
- Snap-in-place, easy lift-off cover
- 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®, evaporating water within the Vapor Pad®. Newly-moistened air is then delivered throughout your home via your home’s duct system. Breathe Healthier® with a GeneralAire® 4200 Evaporative Humidifier.
Specs
- Type: bypass evaporative
- Gallons per day: 17 (based on 120° F plenum temperature)
- Dimensions (inches): 15 1/4 H x 12 W x 8 1/2 D
- Weight (pounds): 3.5
- Vapor Pad® replacement: GA35 (GFI #7902)
- Replace 1-2 times per season
- For home sizes up to 4,200 square feet
- Plenum opening (inches): 9 1/8 W x 12 H
- Bypass opening (inches): 6
- Pallet quantity (units): 30
- Installation: warm air / return air plenum / right of left side
- Control: GFX4 digital automatic-control humidistat; controls the furnace blower motor
- Power (volts): 24
- Warranty (years): 5
Generalaire 4400A Fan-Assist, Evaporative Humidifier

Generalaire 4400A Fan-Assist, Evaporative Humidifier
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.
Specs
- 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
