HERS index and PHIUS
harrison55
| Posted in General Questions on
The zero energy ready home (ZERH) certification requires that you have a HERS index that is less than 50% of the HERS index of a model house of the same size and shape. I’m trying to get a rough idea of how this would compare to a house built to passive house standards.
Is there anyone out there who has built to passive house standards and also got a number for their HERS rating? I am curious to know how you fared on the HERS scale.
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This article is 10 years old, but it might be worthwhile to follow up with the author.
https://www.greenbuildermedia.com/buildingscience/hers-rating-a-passive-house
Hi Mark.
This house--Lessons From a Practical Passive House--got a HERS rating of 36. The builder, who has built a bunch of Passive Houses, wrote to me in an email, "We have found that PH's don't tend to get great HERS ratings- I'm not really too sure as to why this is."