Energy Star Programs and Products 
Provides information on energy-efficient programs designed to reduce energy consumption. Along with program information, there are links to news, and related free publications.
Energy Star Heating and Cooling Program
Provides an overview of the EPA's Energy Star Residential Heating and Cooling program. There are links to information on heating systems, air conditioners, thermostats, and boilers. In addition, there are links to companies that provide financing, and manufacturers that support this effort.
Official Energy Star site
Sponsored by the EPA and Department of Energy, this site provides information about the Energy Star program and lists products that qualify for the label.
Trane's Energy Star Products page
This page, from Trane, describes the Energy Star program, as well as its committment to energy-efficient residential products, and a link to their line of Energy Star products.
