Energy Star - Furnaces——火炉能源之星标准
Product Current Program RequirementsForthcoming Program RequirementsNote
Furnaces Version 3.0 http://www.energystar.gov/images/pdf_tiny.gif Version 4.0 http://www.energystar.gov/images/pdf_tiny.gif
(Effective 2/1/13; Note: effective 6/13/11, manufacturers may have products certified to Version 4.0)
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