Modulating Power Steam Humidifiers

By: Oleg Tchetchel


An appropriate humidity level in every residential and commercial building can not be over-estimated. Humidity becomes the most important factor for everyone's comfort while inside a closed heated space, especially during winter time.

If the air in the house does not contain enough moisture, people may feel cold and uncomfortable - even at 75 F. Dry, thirsty air evaporates moisture from skin, a cooling process that makes one feel chilly. But, with humidity raised to recommended levels, the thermostat can be dialed down to 68 F and still maintain comfortable feeling.

Most people believe that bacteria grows and reproduces best in humid and warm
environments. This is only partially true. Many bacteria, such as pneumococcus,
staphylococcus, and streptococcus survive much better in very humid environments
(above 70% relative humidity) AND in very love humidity environments (below 20%
relative humidity). In fact, these bacteria die 20 times faster environments
where the humidity is between 45% and 55% (normal range in a properly humidified
home) than they do in locations where the humidity is about 70% or below 20%.

A leading manufacturer of thermostats and humidistats recently surveyed 1,000
households across the United States about their indoor air quality in the fall
and winter. An astounding 70% of respondents complained of air so low in humidity
that is caused symptoms such as dry and flakey skin, itchiness, sore throats,
and bleeding noses from cracked nasal membranes. More than 75% complained of
feeling too hot or too cold even though their thermostats said the home was at a
temperature that they normally found comfortable.

A newly released Tenderall element type electric power humidifier offers unmatched precise humidity control in any size building, and for the most sophisticated ventilating ductwork design. Its computerized modulating output steam capacity control minimizes electric power consumption, while maintains the desired humidity level within 2% relative humidity range.

The self contained elemt type steam humidifiers produce mineral free, odourless, sterile steam without the replacement cost associated with electrode cylinders manufactured by competitors.

Electric Steam Humidifier has the following features:

Capacities from 6-180 lb/hr (2.7-82kg/hr) of steam On/Off or fully
modulating with solid state relays
Digital interface capability
Anti-foam system, mass measuring water sensor.
Permanent stainless steel chamber with self cleaning heating elements
Simplicity of operation and service
Corrosion and scratch resistant aluminium housing with powder paint finish
Wall mounted installation

The evaporation chamber of this steam humidifier consists of a permanent stainless steel chamber with self cleaning heating elements. The components of the humidifiers are readily accessible for easy and quick servicing. Reliability of the Tenderall humidifier is one of the features that set it apart from competing humidifiers. The content of the supply water is not an issue. Using umique technology, the water sensor will measure the mass of the water (instead of the conductivity) insuring a proper water level at all time.

The steam can be distributed into a duct by a steam distributor or with a fan distribution unit for direct space applications. This technique is described in details at http://www.tenderall.com.

For additional information please visit http://www.tenderall.com/hvac/index.html.

Oleg Chetchel
HVAC Design Engineer
Tenderall HVAC Co.
http://www.tenderall.com/blower/index.html
http://www.tenderall.com/ventilator/index.html

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Oleg Chetchel, Ph D, Senior Industrial and Commercial HVAC Design Engineer Tenderall HVAC Co. - Fans and Blowers Experts [email protected] tenderall.com/blower/index.html tenderall.com/ventilator/index.html

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