Energy Star是一套标准,NRC要求5方面。以下以minto的标准为例说明
1。 insulation upgrades
Exterior walls: R22
Basement exterior walls: R12 (insulation no more than 6” from floor)
Ceilings with attic: R50 insulation
R32 insulation in garage ceiling when there's a finished area above it
2。 higher-performance windows
Low e-argon windows
3。 better draft proofing
Main supply and exhaust ducts sealed
4。 more efficient heating, hot water and air conditioning systems
Direct vent furnace with 92% AFUE (annual fuel utilization efficiency)
Rental hot water tank with minimum of 0.82 EF (energy factor)
5。ENERGY STAR® qualified appliances (if supplied by the builder)
现在的新房,据我所知2,4都meet,5大家一般都自己买,所以重点就在1 和3
另外ENERGY STAR的房子密封性好,所以换气率低,一般都会装HRV改善室内空气质量
1。 insulation upgrades
Exterior walls: R22
Basement exterior walls: R12 (insulation no more than 6” from floor)
Ceilings with attic: R50 insulation
R32 insulation in garage ceiling when there's a finished area above it
2。 higher-performance windows
Low e-argon windows
3。 better draft proofing
Main supply and exhaust ducts sealed
4。 more efficient heating, hot water and air conditioning systems
Direct vent furnace with 92% AFUE (annual fuel utilization efficiency)
Rental hot water tank with minimum of 0.82 EF (energy factor)
5。ENERGY STAR® qualified appliances (if supplied by the builder)
现在的新房,据我所知2,4都meet,5大家一般都自己买,所以重点就在1 和3
另外ENERGY STAR的房子密封性好,所以换气率低,一般都会装HRV改善室内空气质量