Table 1-Test Requirements for Commercial Packaged Boiler Equipment Classes
Equipment category | Subcategory | Certified rated input Btu/h | Standards efficiency metric (§ 431.87 ) | Test procedure (corresponding to standards efficiency metric required by § 431.87 ) |
Hot Water | Gas-fired | [GREATER THAN EQUAL TO]300,000 and [LESS THAN EQUAL TO]2,500,000 | Thermal Efficiency | Appendix A, Section 2. |
Hot Water | Gas-fired | [GREATER THAN]2,500,000 | Combustion Efficiency | Appendix A, Section 3. |
Hot Water | Oil-fired | [GREATER THAN EQUAL TO]300,000 and [LESS THAN EQUAL TO]2,500,000 | Thermal Efficiency | Appendix A, Section 2. |
Hot Water | Oil-fired | [GREATER THAN]2,500,000 | Combustion Efficiency | Appendix A, Section 3. |
Steam | Gas-fired (all*) | [GREATER THAN EQUAL TO]300,000 and [LESS THAN EQUAL TO]2,500,000 | Thermal Efficiency | Appendix A, Section 2. |
Steam | Gas-fired (all*) | [GREATER THAN]2,500,000 and [LESS THAN EQUAL TO]5,000,000 | Thermal Efficiency | Appendix A, Section 2. |
[GREATER THAN]5,000,000 | Thermal Efficiency | Appendix A, Section 2. OR Appendix A, Section 3 with Section 2.4.3.2 . | ||
Steam | Oil-fired | [GREATER THAN EQUAL TO]300,000 and [LESS THAN EQUAL TO]2,500,000 | Thermal Efficiency | Appendix A, Section 2. |
Steam | Oil-fired | [GREATER THAN]2,500,000 and [LESS THAN EQUAL TO]5,000,000 | Thermal Efficiency | Appendix A, Section 2. |
[GREATER THAN]5,000,000 | Thermal Efficiency | Appendix A, Section 2. OR Appendix A, Section 3. with Section 2.4.3.2 . |
* Equipment classes for commercial packaged boilers as of July 22, 2009 (74 FR 36355) distinguish between gas-fired natural draft and all other gas-fired (except natural draft).
10 C.F.R. §431.86