Electric Heater Resources
Magazine
http://www.industrialheating.com
http://www.process-heating.com
http://www.hpac.com
Book
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http://www.mhprofessional.com/product.php?cat=198&isbn=007144887X
Other
http://www.hotwatt.com/heatloss.htm
http://www.hotwatt.com/installa.htm
Electric Heater Related Articles
http://www.sylvania.com/BusinessProducts/MaterialsandComponents...
http://www.heatersource.com/art1a001.html
http://www.process-heating.com/CDA/Archives/770aec343a268010VgnVCM100000f932a8c0
http://www.heatersource.com/art2a001.html