(a) Sampling plan for selection of units for testing.

(1) The requirements of §429.11 are applicable to pool heaters; and

(2) For each basic model of pool heater a sample of sufficient size shall be randomly selected and tested to ensure that any represented value of the 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:

(i) The mean of the sample, where:

Or,

(ii) The lower 971⁄2 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 pool heaters; and

(2) Pursuant to §429.12(b)(13), a certification report shall include the following public product-specific information: The thermal efficiency in percent (%) and the input capacity in British thermal units per hour (Btu/h).

[76 FR 12451, Mar. 7, 2011; 76 FR 24769, May 2, 2011]