F. For oil-fired steam boilers, a minimum efficiency level of 82%.

The commission may adopt rules to exempt compliance with furnace or boiler standards at any building, site or location if compliance with those standards would conflict with any local zoning ordinance, building or plumbing code or other rule regarding installation and venting of boilers or furnaces.

9. Furnace air handlers must have an efficiency ratio of 2.0 percent or less, except that air handlers for oil-fired furnaces with a capacity of less than 94,000 BTUs per hour must have an efficiency ratio of 2.3 percent or less.

10. High-intensity discharge lamp ballasts may not be designed or marketed to operate a mercury vapor lamp.

11. Illuminated exit signs must have an input power demand of 5 watts or less per illuminated face.

12. Large packaged air-conditioning equipment must meet or exceed the following minimum energy efficiency ratios:

A. For air conditioning without an integrated heating component or with electric resistance heating integrated into the unit, a minimum energy efficiency ratio of 10.0;

B. For air conditioning with heating other than electric resistance integrated into the unit, a minimum energy efficiency ratio of 9.8;

C. For air-conditioning heat pumps without an integrated heating component or with electric resistance heating integrated into the unit, a minimum energy efficiency ratio of 9.5; and

D. For air-conditioning heat pump equipment with heating other than electric resistance integrated into the unit, a minimum energy efficiency ratio of 9.3.

Large packaged air-conditioning heat pumps must meet a minimum coefficient of performance in the heating mode of 3.2.

13. Low-voltage dry-type distribution transformers must meet or exceed the Class 1 efficiency levels for low-voltage distribution transformers specified in Table 4-2 of the "Guide for Determining Energy Efficiency for Distribution Transformers"