[Greenbuilding] HDD and how they are calculated (daily avg. vs hourly avg)

Alan Abrams alan at abramsdesignbuild.com
Tue Nov 22 06:01:58 PST 2011


>
> I think "good enough for horse shoes and hand grenades" type precision is
> sufficient if using the HDD/yr figure in calculations for a particular
> location when trying to make decisions during the design process of a
> building for normal occupancies.
>

not that one should not strive for precision, but heaven forbid that on the
muggiest day in July you should have to ice down your scotch, or need a
sweater a few evenings in January.

it's the same question of, do you scale your dining room for Thanksgiving,
or for the other 364 days a year, applied to thermal comfort.

-AA
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