1. American Society of Heating and Ventilating Engineer's Guide.
2. American Oil Burner Association Handbook.
3. “Air Conditioning for Comfort,” by S. R. Lewis.
4. “The Influence of Infra-Red Radiation in Relation to Heating and Ventilation,” by Dr. Leonard Hill.
5. “How to Use the Effective Temperature Index and Comfort Charts”—A.S.H.V.E.