A new Energy Star specification for geothermal heat pumps (GHP's) for the first time makes it possible for water-to-water GHP's to earn the Energy Star energy efficiency label and qualify for tax credits.
On average, Energy Star qualified products covered under this new specification will be over 45% more energy efficient than standard options, says the EPA.
Anticipating advances in technology in the coming years, the EPA has set more stringent efficiency requirements to ensure that Energy Star continues to represent top performers in this category.
New requirements for water-to-air and direct geoexchange GHP models will take effect on January 1, 2011. Even more stringent levels will go into effect for water-to-water and water-to-air models on January 1, 2012. Get more information here.