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Your LOCAL Residential Heating, Ventilation and Air Conditioning (HVAC) Contractor
Air Quality General Aire Humidifier
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GeneralAire Legacy Series Flow-Through House Humidifier
Model 1042LH


Air quality is only a concern outdoors, isn't it?

Not true! The air inside your home can be even more of a concern to your health and comfort, especially in the winter.

Because we spend more time indoors, low humidity in our home in winter can bring discomforts such as dry, itchy skin, not to mention dry sinuses and nose which can lead to difficulty breathing.

The easiest way to compensate for humidity loss is to add a humidifier to your forced air system which will allow moist air distribution throughout the home. This can be accomplished using a flow through humidifier that is installed to the cold or warm air duct at the furnace.

Model 1042LH Flow-Through Humidifier is a perfect choice for most homes!

Specifications
  • Unit Size15" wide x 11-1/2" high x 9" deep
  • Plenum Opening 10-1/4" wide x 9-1/2" high
  • Bypass Duct 6" diameter (collar supplied)
Features
  • M3 Select-Control Manual Humidistat is included
  • A highly efficient flow-through unit that delivers 19.2 GPD
  • Replacement evaporator pad number 990-13
How does it work?

When the humidistat senses a need for additional humidity, a solenoid valve is opened and metered water flows into the patented distribution tray at the top of the humidifier. The tray assures that the evaporator pad is moistened thoroughly and uniformly for greatest evaporative efficiency.

Dry air, warmed by the furnace, is passed through the wet pad where evaporation occurs and moist, humidified air is circulated through-out the home. Unevaporated water drains from the bottom of the unit carrying off troublesome minerals. The efficiency of design ensures more water gets into the air instead of running down the drain. The 1042LH humidifier uses less water input to produce more humidity output than most competitive units.

Why Humidify?

When cold, dry air enters your home and is warmed to room temperature, the relative humidity in the average house can drop to as little as 5%. Compare that to the average 25% relative humidity of the Sahara Desert and you can understand why the air inside your home can seriously affect your health and comfort. Since various studies have estimated that most people spend as much as 90% of their time at home indoors, there’s reason to be concerned about indoor air quality.

How does humidity AFFECT my comfort?

Since the air in your home is always trying to reach its saturation point, it will absorb water wherever it’s found. That means it is stealing moisture from the bodies of you and your children, your pets, your furniture and even your house plants.

By giving up moisture to the air, your skin, throat and nasal passages dry out and crack, leading to various physical discomforts. That’s why many doctors recommend humidifiers for allergy and asthma sufferers.

Research has shown that 30% – 60% relative humidity is ideal. Outside this range, bacteria, fungi, viruses and mites thrive and multiply. As these creatures increase in number, so does your risk of being adversely affected.

How Relative Humidity AFFECTS Air Quality?

Research has shown that 30% - 60% relative humidity is ideal. Outside this range, bacteria, fungi, viruses and mites thrive and multiply. As these creatures increase in number, so does your risk of being adversely affected.

How does humidity AFFECT my house?

Virtually everything in your home made from wood contains some moisture. As dry air sucks that moisture out, the wood shrinks and cracks. Hardwood floors separate at the seams, furniture shrinks and cracks, and doors warp and no longer fit their frames as the moisture is drawn off.

Are there any other BENEFITS to properly conditioned air?

Yes, it can help you save energy! Warm, humid summer air feels hotter than it actually is because of the moisture it contains. That same principle applies to your home in the winter. By keeping the relative humidity inside your home at an ideal level, you can turn your thermostat down a few degrees and still feel comfortable. Dialing down your thermostat just three degrees can reduce your heating bill by as much as 5%.

Humidity requirements in Gallons a Day (GPD) based on house size and construction type (from ARI Guideline F)
Construction type Size of house (sq. ft.)*
500 1000 1500 2000 2500 3000
Tight 2.1 4.2 6.4 8.5 10.6 12.7
Average 3.3 6.5 9.8 13.1 16.3 19.6
Loose 4.6 9.2 13.8 18.4 23.0 27.6
*NOTE: Figures are based on an 8ft. ceiling height. GPD shown is a 140° plenum temperature. Square footage may be adjusted for other plenum temperatures.
Humidity based on a 70°F-30% relative humidity indoor conditions using ARI Guideline F Humidity Load Determination Method.
 

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