Goodman Manufacturing
Clueless about heating and air conditioning works? Goodman's "Heating and Cooling 101" is a quick and easy read to get you up to speed. This simple guide will give you an overview of the basics.
Read Goodman's "Heating and Cooling 101"

U.S. Department of Energy: Energy Savers.gov
Did you know that heating and cooling accounts for 56% of the energy use in a typical U.S. home, making it the largest energy expense for most homes? This is the kind of information you can expect to find in this handy online guide from the U.S. Dept. of Energy. The articles cover everything from selecting and replacing heating and cooling systems to how your systems function. This guide focuses on the value of investing in high efficiency systems to save the planet and your money!
Read "Space heating and Cooling"

United States Environmental Protection Agency (EPA)This publication from the EPA will help you become familiar with indoor air pollutants and their dangers. The articles point out the sources of pollutants and measure you can take to prevent and eliminate them.
Read "Care For Your Air: A Guide To Indoor Air Quality"

Energy Star
Energy Star's article is chock full of tips on how to make your heating and cooling system more energy efficient. Tips are excellent for saving money on your energy bill.
Read "Heating and Cooling Efficiently"



NPR
Interesting read which compares the costs of heating versus the costs of cooling your home.
Read "The Energy Costs of Cooling and Heating a Home"