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Questions tagged [energy-efficiency]

The percentage ratio of energy produced to energy supplied to a system; or a measure of minimum energy required relative to energy actually consumed; or a measure of relative energy consumed to provide the same energy service.


Home efficiency

Please comment on which design is more thermally efficient. They are roughly the same. The apt is 2' shorter on the out (left) as space is not need for stairs. It is a cooler climate with 70" of ...