(1) For investments in products installed on or after July 1, 2010, the following applicable specification must be met or exceeded to qualify for the credit:

(a) Exterior windows and skylights-U factor less than or equal to 0.30;

(b) Storm windows-U factor less than or equal to 0.30 when measured in combination with the exterior window over which it is installed;

(c) Exterior doors-U factor less than or equal to 0.30;

(d) Storm doors-U factor less than or equal to 0.30 when measured in combination with the exterior window over which it is installed;

(e) Split system central air conditioning-EER greater than or equal to 13 and SEER greater than or equal to 16;

(f) Package system central air conditioning-EER greater than or equal to 12 and SEER greater than or equal to 14;

(g) Split system air source heat pumps-HSPF greater than or equal to 8.5, EER greater than or equal to 12.5 and SEER greater than or equal to 15;

(h) Package system air source heat pumps-HSPF greater than or equal to 8, EER greater than or equal to 12.5 and SEER greater than or equal to 14;

(i) Natural gas or propane furnace-AFUE greater than or equal to 95;

(j) Oil furnace-AFUE greater than or equal to 90;

(k) Hot water boiler-AFUE greater than or equal to 90;

(l) Advanced main air circulating fan-no more than 2 percent of total energy use;

(m) Heat recovery ventilators-CSA C439-00 standard;

(n) Gas, oil, or propane water heater-energy factor greater than or equal to 0.82 or thermal efficiency of at least 90 percent;

(o) Electric heat pump water heater-energy factor greater than or equal to 2.0.