Evaporative Models: 3200, 4200, 1042LH, 1099LHS
Fan-Powered Models: 1000, 1137
How Your Humidifier Works
Water is distributed through a water distribution trough resting on top of a Vapor Pad
®
inside the humidifier. The Vapor Pad
®
then becomes thoroughly saturated with water. As heated air from the furnace passes through the water-soaked Vapor Pad
®
,
the water evaporates and creates humidity. The humidity is moved by the furnace blower motor through the duct system and
is distributed to the living quarters of the home. To produce humidity, the humidifier runs only when the furnace blower and
heat are engaged.
Fan-powered models operate similarly to evaporative, but a fan inside the humidifier pulls heated are through the Vapor Pad
®
to enhance humidity output.
IMPORTANT: Performing annual maintenance of your humidifier is essential in achieving top performance.
The Benefits of Adding Humidity With a GeneralAire
®
Evaporative Humidifier
1. Since dry air can cause dry, itchy, cracked skin, adding humidity keeps skin feeling moist and comfortable.
2. Air that’s too dry causes dry sinuses and throat; increasing the risk of infection, colds, and flu.
3. Proper moisture control (40-60% RH) in the home will reduce and suppress the amount and level of harmful particulates
in the air.
4. Dust and other particulates also stay airborne longer in dry conditions; thereby increasing allergy and asthma triggers.
Adding humidity helps those suffering with allergies and asthma.
5. Adding humidity prevents valuable woodwork, wooden instruments, and artwork from cracking and becoming damaged.
6. Proper humidity levels prevent annoying static shocks.
7. Dry air feels chillier during winter months. Even in newer, tighter homes dry air can feel chillier, again causing you to turn
up your thermostat. For example, 68°F at 40% relative humidity feels just as warm as 74°F at 20% humidity. Setting your
thermostat back by as little as three degrees can reduce annual heating bills by as much as 5%.
Introduction
Thank you for your purchase of a GeneralAire
®
evaporative or fan-powered humidifier. We sincerely appreciate your business
and are confident you will enjoy the difference your new humidifier makes in your health and comfort throughout the years.
You have purchased one of the highest-quality products in the market today from a long-standing and respected company in
the industry. A family-owned business since 1937, General Filters, Inc. has produced a full line of products that protect the
health of your family and your home, to include humidifiers, dehumidifiers, air cleaners, and UV air purifiers. As healthy indoor
air often requires a comprehensive approach, you may wish to ask your contractor about other products that would protect
your family, home, and assets.
This manual is designed to acquaint you with how your humidifier works and how to keep it running at the highest level of
performance through regular maintainenance.
®
43800 Grand River Avenue Novi, Michigan 48375 Toll Free: (866) 476-5101 www.generalaire.com
Designed & Assembled
in Michigan, USA
Owner’s Manual
GeneralAire
®
Evaporative & Fan-Powered Humidifiers
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