HSPF

HSPF

HSPF (Heating Seasonal Performance Factor) is a term used in the heating and cooling industry. HSPF is specifically used to measure the efficiency of heat pumps.

The efficiency of air conditioners are often rated by the Heating Seasonal Performance Factor (HSPF) as defined by the Air Conditioning And Refrigeration Institute in its standard 210/240 Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment [http://www.ari.org/NR/rdonlyres/CE3D72C1-1D53-432B-A3E0-BD0FE39DAB6A/0/2102402006.pdf] last updated in 2006.

The higher the HSPF rating of a unit, the more energy efficient it is. HSPF is a ratio of BTU heat output over the heating season to Watt- hours of electricity used [Efficiency Ratings [http://www.cwlp.com/Energy_services/efficiency_ratings.htm] ]

An HSPF >= 9.0 is considered high efficiency and worthy of a US Energy Tax Credit [Federal Tax Credits for Energy Efficiency [http://www.energystar.gov/index.cfm?c=products.pr_tax_credits] ]

ee also

* R-Value
* SEER
* Heat Pump

References

External links


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