Environmental Systems Associates, Inc.

Residential Air Conditioning & Heating

(410) 381-7991

Howard County, Maryland

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For Service Call: (410) 381-7991

What are the benefits of a humidifier? Can it really make a difference?

Yes! It can make a difference. With an Aprilaire^® humidifier attached to your heating system you can experience…

• More warmth…Humid air feels warmer.
• Less discomfort…Humidity can reduce nose and throat aggravations.
• Hidden benefits…Humidity reduces wood shrinkage in furniture.
• Safety…Humidity prevents static electricity.

During the winter, heated 70° air can hold approximately 20 times as much moisture as the 0° outside air. The warmer temperature leads to evaporation from the interior of the home—the furniture, woodwork, carpeting and humans; leaving shrinking woodwork, static electricity, and itchy skin and respiratory irritation.

Most people feel comfortable when the relative humidity in a home is about 35%, yet the relative humidity in an average home without a humidifier is approximately 15%—about half the average relative humidity found in the Saraha desert.

To relieve these conditions moisture must be added to the indoor air. We recommend the Aprilaire^® Model 400A whole-house humidifier with automatic control.

Maximize Humidity Control Without Wasting Water

The Aprilaire^® Model 400 Whole-House Humidifier uses a new evaporative process that uses 100% of the water entering the unit. No water is wasted down the drain.

• An automatic digital control that senses the outdoor temperature and humidity and maintains the relative humidity indoors at optimum levels.
• Uses a new evaporative, "wicking" process that eliminates standing water or wasting water down the drain.
• Is rated at 0.70 gallons/hour, adequate for a tightly-constructed home up to 4,000 square feet in size.
• Uses a passive, evaporative process requiring no motors.
• Easy maintenance with slide-in water panels.
• A slim profile that will fit almost any furnace or air handler.

For more information or to schedule an installation, contact our office at:
(410) 381-7991.

• Environmental Systems Associates, Inc.
• 9375-J Gerwig Lane, Columbia MD 21046
• (410) 381-7991
• Lic. HVACR MD 01-2939