Geothermal heat pump manufacturer WaterFurnace International announced the return of SEVENbration, a celebration of another successful year for the 7 Series variable-capacity geothermal heat pump. Through Dec. 19, homeowners can once again receive an instant rebate of $2,100 through participating WaterFurnace dealers.

“Combined with a 30% federal tax credit, several local incentives and year-round savings on utility bills, SEVENbration provides a unique opportunity for homeowners to maximize their return on a geothermal investment,” said Tim Litton, WaterFurnace director of marketing communications.

 WaterFurnace’s 7 Series was recently honored with a 2014 AHR Expo Innovation Award in the heating category. The 7 Series also achieved the ENERGY STAR Most Efficient designation in 2012, 2013 and 2014.