10 CFR 429.44 - Commercial water heating equipment.

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There are 8 Updates appearing in the Federal Register for 10 CFR 429. View below or at eCFR (GPOAccess)
§ 429.44 Commercial water heating equipment.
(a) Sampling plan for selection of units for testing.
(1) The requirements of § 429.11 are applicable to commercial WH equipment; and
(2) For each basic model of commercial water heating (WH) equipment, efficiency must be determined either by testing, in accordance with applicable test procedures in §§ 431.76, 431.86, 431.96, or 431.106 and the provisions of this section, or by application of an alternative efficiency determination method (AEDM) that meets the requirements of § 429.48 and the provisions of this section. For each basic model of commercial WH equipment, a sample of sufficient size shall be selected and tested to ensure that—
(i) Any represented value of maximum standby loss or other measure of energy usage of a basic model for which consumers would favor lower values shall be greater than or equal to the higher of:
(A) The mean of the sample, where:
Or,
(B) The upper 95 percent confidence limit (UCL) of the true mean divided by 1.05, where:
and
(ii) Any represented value of minimum thermal efficiency or other measure of energy consumption of a basic model for which consumers would favor higher values shall be less than or equal to the lower of:
(A) The mean of the sample, where:
Or,
(B) The lower 95 percent confidence limit (LCL) of the true mean divided by 0.95, where:
(b) Certification reports.
(1) The requirements of § 429.12 are applicable to commercial WH equipment; and
(2) Pursuant to § 429.12(b)(13), a certification report shall include the following public product-specific information:
(i) Commercial electric storage water heaters: The maximum standby loss in percent per hour (%/hr), and the measured storage volume in gallons (gal).
(ii) Commercial gas-fired and oil-fired storage water heaters: The minimum thermal efficiency in percent (%), the maximum standby loss in British thermal units per hour (Btu/h), the rated storage volume in gallons (gal), the measured storage volume in gallons (gal) and the nameplate input rate in British thermal units per hour (Btu/h).
(iii) Commercial gas-fired and oil-fired instantaneous water heaters greater than or equal to 10 gallons and gas-fired and oil-fired hot water supply boilers greater than or equal to 10 gallons: the minimum thermal efficiency in percent (%), the maximum standby loss in British thermal units per hour (Btu/h), the rated storage volume in gallons (gal), and the nameplate input rate in Btu/h.
(iv) Commercial gas-fired and oil-fired instantaneous water heaters less than 10 gallons and gas-fired and oil-fired hot water supply boilers less than 10 gallons: the minimum thermal efficiency in percent (%) and the storage volume in gallons (g).
(v) Commercial unfired hot water storage tanks: The minimum thermal insulation (i.e., R-value) and the measured storage volume in gallons (gal).
(c) Alternative methods for determining efficiency or energy use for commercial WH equipment can be found in § 429.70 of this subpart.
[76 FR 12451, Mar. 7, 2011; 76 FR 24776, May 2, 2011]

Title 10 published on 2014-01-01

The following are only the Rules published in the Federal Register after the published date of Title 10.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-12-03; vol. 79 # 232 - Wednesday, December 3, 2014
    1. 79 FR 71624 - Energy Conservation Program: Test Procedures for Commercial Clothes Washers
      GPO FDSys XML | Text
      DEPARTMENT OF ENERGY, Office of Energy Efficiency and Renewable Energy
      Final rule.
      The effective date of this rule is January 2, 2015.
      10 CFR Parts 429 and 431

Title 10 published on 2014-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 10 CFR 429 after this date.

  • 2014-12-03; vol. 79 # 232 - Wednesday, December 3, 2014
    1. 79 FR 71624 - Energy Conservation Program: Test Procedures for Commercial Clothes Washers
      GPO FDSys XML | Text
      DEPARTMENT OF ENERGY, Office of Energy Efficiency and Renewable Energy
      Final rule.
      The effective date of this rule is January 2, 2015.
      10 CFR Parts 429 and 431