(ii) in clause (ii), by striking ‘‘, or’’ 
and inserting a period, and 
(iii) by striking clause (iii), 
(B) in paragraph (3)— 
(i) by striking subparagraph (A) and 
inserting the following: 
‘‘(A) an electric heat pump water heater 
which, in the standard Department of Energy 
test procedure, yields a uniform energy factor 
of at least 3.0,’’, 
(ii) in subparagraph (B), by striking 
‘‘January 1, 2009’’ and inserting ‘‘the date 
of enactment of the Home Energy Savings 
Act’’, 
(iii) in subparagraph (C), by striking 
‘‘January 1, 2009’’ and inserting ‘‘the date 
of enactment of the Home Energy Savings 
Act’’, 
(iv) by striking subparagraph (D) and 
inserting the following: 
‘‘(D) a natural gas, propane, or oil water 
heater which, in the standard Department of 
Energy test procedure, yields— 
‘‘(i) in the case of a storage tank 
water heater— 
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‘‘(I) in the case of a medium- 
draw water heater, a uniform energy 
factor of not less than 0.78, and 
‘‘(II) in the case of a high-draw 
water heater, a uniform energy factor 
of not less than 0.80, and 
‘‘(ii) in the case of a tankless water 
heater— 
‘‘(I) in the case of a medium- 
draw water heater, a uniform energy 
factor of not less than 0.87, and 
‘‘(II) in the case of a high-draw 
water heater, a uniform energy factor 
of not less than 0.90, and’’, and 
(v) in subparagraph (E), by striking 
‘‘of at least 75 percent’’ and inserting the 
following: ‘‘(as determined pursuant to the 
applicable list published by the Environ-
mental Protection Agency for certified 
wood stoves, hydronic heaters, or forced-air 
furnaces) of at least— 
‘‘(i) in the case of any stove placed in 
service before January 1, 2021, 73 per-
cent, and 
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‘‘(ii) in the case of any stove placed in 
service after December 31, 2020, 75 per-
cent.’’, 
(C) in paragraph (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 ac-
cording to any applicable Air Conditioning Contrac-
tors 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 STAND-
ARDS.—In the case of any standard, requirement, or 
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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. 
Æ 
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