Through December 31st 2007, if you purchase specific qualifying energy-efficient items for your home, you can save hundreds of dollars via federal tax rebates. Water heaters 80% efficient or greater (tankless) - $300 Furnaces 95% efficient or greater - $150 Air Conditioners 14 SEER or greater - $300 Insulation - 10% of cost, up to $500 Windows - 10% of cost, up to $200 There are many other items that qualify, for more information and a complete list, please visit EnergyStar.gov's page for more information. … [Read more...]