HVAC tech vs. engineer part 2 (DOAS discussion)
FEB 01, 2021
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Professional engineer, Leif Wismar and I discuss the who, what, and where for dedicated outdoor air systems.  Leif Wismar is a certified mechanical engineer located in Mandeville, LA and currently owns and operates Matrix HVAC.  He can be reached at www.matrix-hvac.com.  

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