§ 431.87 Energy conservation standards and their effective dates.
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Title 10 CFR: Energy › Chapter II: DEPARTMENT OF ENERGY › Part 431: ENERGY EFFICIENCY PROGRAM FOR CERTAIN COMMERCIAL AND INDUSTRIAL EQUIPMENT › Subpart E: Commercial Packaged Boilers › § 431.87: § 431.87 Energy conservation standards and their effective dates.
Text
(a) Each commercial packaged boiler listed in table 1 of this paragraph (a) and manufactured on or after the effective date listed must meet the indicated energy conservation standard.
Table 1 to Paragraph
(a)
—Commercial Packaged Boiler Energy Conservation Standards
Equipment category
Subcategory
Certified rated input
Efficiency level—effective date: March 2, 2012 *
Hot Water Commercial Packaged Boilers
Gas-fired
≥300,000 Btu/h and ≤2,500,000 Btu/h
80.0% E
T
.
Hot Water Commercial Packaged Boilers
Gas-fired
>2,500,000 Btu/h
82.0% E
C
.
Hot Water Commercial Packaged Boilers
Oil-fired
≥300,000 Btu/h and ≤2,500,000 Btu/h
82.0% E
T
.
Hot Water Commercial Packaged Boilers
Oil-fired
>2,500,000 Btu/h
84.0% E
C
.
Steam Commercial Packaged Boilers
Gas-fired, all, except natural draft
≥300,000 Btu/h and ≤2,500,000 Btu/h
79.0% E
T
.
Steam Commercial Packaged Boilers
Gas-fired, all, except natural draft
>2,500,000 Btu/h
79.0% E
T
.
Steam Commercial Packaged Boilers
Gas-fired—natural draft
≥300,000 Btu/h and ≤2,500,000 Btu/h
77.0% E
T
.
Steam Commercial Packaged Boilers
Gas-fired—natural draft
>2,500,000 Btu/h
77.0% E
T
.
Steam Commercial Packaged Boilers
Oil-fired
≥300,000 Btu/h and ≤2,500,000 Btu/h
81.0% E
T
.
Steam Commercial Packaged Boilers
Oil-fired
>2,500,000 Btu/h
81.0% E
T
.
* Where E
C
is combustion efficiency and E
T
is thermal efficiency.
(b) Each commercial packaged boiler listed in table 2 of this paragraph (b) and manufactured on or after the effective date listed in Table 2 must meet the indicated energy conservation standard.
Table 2 to Paragraph
(b)
—Commercial Packaged Boiler Energy Conservation Standards
Equipment category
Subcategory
Certified rated input
Efficiency level—effective date: March 2, 2022 *
Steam Commercial Packaged Boilers
Gas-fired—natural draft
≥300,000 Btu/h and ≤2,500,000 Btu/h
79.0% E
T
.
Steam Commercial Packaged Boilers
Gas-fired—natural draft
>2,500,000 Btu/h
79.0% E
T
.
* Where E
T
is thermal efficiency.
[88 FR 64352, Sept. 19, 2023]
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