(4), by striking not less than 95 and inserting the following: not less than— (A) in the case of a furnace, 97 percent, and (B) in the case of a hot water boiler, 95 percent. , (D) by striking paragraph (5), and (E) by redesignating paragraph (6) as paragraph (5), (5) in subsection (e), by adding the following new paragraphs at the end: (4) Installation standards The terms energy efficient building envelope component and qualified energy property shall not include any components or property which are not installed according to any applicable Air Conditioning Contractors of America Quality Installation standards which are in effect at the time that such components or property are placed in service. (5) Replacement of terminated standards In the case of any standard, requirement, or criteria applicable to any energy efficient building envelope component or qualified energy property which is terminated after the date of enactment of the Home Energy Savings Act , the Secretary, in consultation with the Secretary of Energy, shall identify a similar standard, requirement, or criteria for purposes of determining the eligibility of any such component or property for purposes of credit allowed under this section. , and (6) in subsection (g)(2), by striking December 31, 2019 and inserting December 31, 2026 . (b) Effective date The amendments made by this section shall apply to property placed in service after December 31, 2019.