Competitive Comparison

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Forced-air heating and air-conditioning systems keep us warm in the winter and cool in the summer, but unfortunately, that no longer guarantees a comfortable home. For total home comfort you also need fresh, clean, properly humidified air. Only GENERALAire Residential Air Treatment Products provide you—the contractor—and your customer—the homeowner, with a total solution for a clean, comfortable home environment.

General Filter—Dedicated to Homeowner Comfort

Since its founding in 1937, General Filter has committed itself to providing homeowners with quality products that enhance the home environment. Beginning with fuel oil filters for residential use, General Filter added residential humidifiers in the 1950's, air cleaners in the 1980's and gas phase air purifiers in the mid-1990's.

General Filter—Committed To Your Success

With the most comprehensive and targeted line of residential air treatment products in the industry, General Filter provides residential heating and air—conditioning contractors with significant opportunities for success. GENERALAire Residential Air Treatment products offer unmatched quality, value, performance and ease of installation and service. The comparison tables in this brochure highlight the substantial advantages of GENERALAire products over competitive units.

Selecting The Right Humidifier Boosts Customer Comfort—And Satisfaction!

There are two types of humidifiers on the market—flow-through and drum or reservoir units. Once you help the homeowner evaluate his or her home to determine the output capacity needed, the choice between the two styles is largely a matter of preference. GENERALAire humidifiers offer significant advantages over competitors' units and are available in both styles in a range of models to fit any residential application.

Large Home vs. Small Home, Tight vs. Loose.

Larger homes generally require the higher evaporative capacity of flow-through units simply because there is a greater volume of air to be humidified. However, a tightly-constructed home— one with insulation, vapor barriers, weather stripping and snug-fitting windows and doors—will need less capacity than the same size home without those features. In fact, loose construction can more than double the evaporative capacity required to maintain comfort.

Humidity requirements in GPD based on
house size and type of construction
(from ARI Guideline F)

Type Of
Construction
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
*Based on 8 ft. ceiling height

The Air Conditioning and Refrigeration Institute, a nonprofit trade association, developed and published the guidelines used by most contractors today. The guidelines classify home construction as "tight," "average" or "loose".

Tight homes have insulated walls and ceilings, vapor barriers and weather stripping around windows and doors. Windows and doors fit snugly and the fireplace has an effective damper. A tight home experiences about 1/2 air change per hour.

Average homes have insulated walls and ceilings, vapor barriers and a fireplace damper but loose storm doors and windows. Average homes experience one air change per hour.

Loose homes have little insulation, no vapor barriers, no weather stripping and no storm doors or windows. These homes typically experience two air changes per hour.

If you know the size of your home, you can evaluate its construction and refer to the chart for a good estimate of how much capacity your humidifier must have. Your GENERALAire heating and air conditioning dealer can help you with these calculations and show you the GENERALAire humidifier that's right for your home.

General Filters Inc. 43800 Grand River Ave Novi, MI 48375-1115
Phone: (248) 476-5100 Fax: (248) 349-2366
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