10 CFR 431.87 – Energy conservation standards and their effective dates
Current as of: 2024 | Check for updates
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(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
| 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 |
| Hot Water Commercial Packaged Boilers | Gas-fired | >2,500,000 Btu/h | 82.0% E |
| Hot Water Commercial Packaged Boilers | Oil-fired | ?300,000 Btu/h and ?2,500,000 Btu/h | 82.0% E |
| Hot Water Commercial Packaged Boilers | Oil-fired | >2,500,000 Btu/h | 84.0% E |
| Steam Commercial Packaged Boilers | Gas-fired, all, except natural draft | ?300,000 Btu/h and ?2,500,000 Btu/h | 79.0% E |
| Steam Commercial Packaged Boilers | Gas-fired, all, except natural draft | >2,500,000 Btu/h | 79.0% E |
| Steam Commercial Packaged Boilers | Gas-fired—natural draft | ?300,000 Btu/h and ?2,500,000 Btu/h | 77.0% E |
| Steam Commercial Packaged Boilers | Gas-fired—natural draft | >2,500,000 Btu/h | 77.0% E |
| Steam Commercial Packaged Boilers | Oil-fired | ?300,000 Btu/h and ?2,500,000 Btu/h | 81.0% E |
| Steam Commercial Packaged Boilers | Oil-fired | >2,500,000 Btu/h | 81.0% E |
* Where E
(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
| 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 |
| Steam Commercial Packaged Boilers | Gas-fired—natural draft | >2,500,000 Btu/h | 79.0% E |
* Where E