Who We Are

LJ Wing is a manufacturer of Heating, Ventilating, and Air Conditioning (HVAC) components ideal for controlling the temperature and quality of outside air for any commercial or industrial building. Our product mix includes steam or hot water integral face and bypass coils, steam or hot water unit heaters, steam or hot water boiler combustion preheaters, steam or hot water air handling units, door heaters and air curtains, and industrial gas unit heaters. LJ Wing invented the integral face and bypass coil concept 50 years ago to protect air handler coils from freezing when handling large amounts of outside air.  See our product catalog to view the full range of heating, ventilating and air conditioning components.

Typical Applications

LJ Wing steam or hot water integral face and bypass coils have been used in air handlers for medical buildings, laboratories, university research centers, and everyday commercial buildings for years.  Other LJ Wing products such as our steam or hot water unit heaters have been used to provide heating and tempered outside air for warehouses, distribution centers, schools, factories, waste water treatment plants, and aircraft hangers.

Why Use LJ Wing?

LJ Wing HVAC products have one of the lowest warranty cost histories in the industry. As the inventor of the category LJ Wing understands how to prevent coil freeze up better than anyone.  IFB and VIFB integral face and bypass coil selections are made simpler through the use of the LJ Wing Specifier software that can be downloaded free from this website.  LJ Wing also provides unique design support tools such as Computational Fluid Dynamic (CFD) modeling and Building Information Model (BIM) objects in Revit format.

LJ Wing RSS News Feed Recent News Articles

How We Used To Do It

I was recently reading an engineering magazine article (I know, I need to get a life) and came across a question that set me to thinking..."how did people stay cool before we had ...
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Mestex YouTube Channel

Mestex YouTube Channel Mestex, the Dallas division of Mestek has created a YouTube channel, MestexHVAC (http://www.youtube.com/MestexHVAC?feature=guide). Mestex will start using this format website to post informational ...
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Instant Online Document Lookup Using Microsoft Tags

Over the next weeks units shipped from Mestex Dallas will begin to include a small feature that we believe will provide large benefits to our contractor customers.   A ...
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Planning for Volatility

Planning for VolatilityThis post is a little different than most of my entries but is something that anyone in the construction related industries should pay attention to. We all feel the results of the Middle East unrest ...
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ASHRAE Report

The annual ASHRAE/AHRI convention has just completed its run in Las Vegas. The show was surprisingly well attended for an "off year" show with the aisles consistently packed for the first two ...
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LJ Wing Knowledge in a Flash

LJ Wing Knowledge in a FlashL J Wing is pleased to report that we are entering the electronic era for our Engineering Binder with the availability of the new L J Wing  USB Flash Catalog. This new catalog includes the ...
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It is not sustainable if it is not maintainable?or if it breaks down

It is not sustainable if it is not maintainable?or if it breaks downThe first cost of HVAC equipment is usually a tiny fraction of the life cycle cost of the equipment from an operations and maintenance perspective.  True sustainable design should also imply ...
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Accounting Change Might Impact HVAC

Accounting Change Might Impact HVACThere is a proposed change to accounting rules that could impact the HVAC industry.  FASB 13 is now in final draft form and is scheduled for implementation 1/1/2012.  The significant change ...
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LJ Wing Solutions for Waste Water Treatment Plants

LJ Wing Solutions for Waste Water Treatment PlantsBillions of dollars in federal stimulus funds have been allocated toward upgrading and constructing municipal wastewater treatment plants (WWTP’s).   Ventilation is required in ...
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Applied Air Video Feed Videos

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