[Doz]

HVAC certification info



DEWALT HVAC Technician Certification Exam Guide Paperback


http://www.amazon.com/DEWALT-Technic.../dp/0977000338



RSES
The HVACR Training Authority


http://www.rses.org/links.aspx


Bell & Gossett

http://completewatersystems.com/brands/bell-gossett/


Weil-Mclain

http://www.weil-mclain.com/en/resour...spx?Vl=15&Tp=2



2003 International Plumbing Codes Online books

http://books.google.com/books?id=czU...page&q&f=false



NATE North American Technician Excellence


http://www.natex.org/