30 Sep '14, 9pm

Noninvasive #Energy Retrofit of @Sashabruceyouth Group Home for 40% Energy Savings @HomeBldersCar…

Noninvasive #Energy Retrofit of @Sashabruceyouth Group Home for 40% Energy Savings @HomeBldersCar…

While the audit was more extensive than typical audits, it didn’t tell us everything. Short- term (less than one month) monitoring of loads was helpful for roughly estimating energy savings, but the results were not very conclusive. Another limitation was not being able to determine the R-value of the ceiling insulation because there was no attic access (and the audit had to be noninvasive—no tearing into ceilings). But the biggest miss was the13 fireplaces that were concealed behind the drywall (see Figure 1). We caught the 3 that were visible and assumed that any others that might be hidden behind the drywall would have been air sealed prior to enclosure, but we were wrong. And we were wrong about the number of fireplaces that could possibly be concealed, too. As we would later learn during the retrofit, each chimney stack had not 1 or 2, but 4 flues, connected to 4 fire...

Full article: http://www.homeenergy.org/show/article/id/1991/viewFull/#...

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