Energy Unit
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The BTU-tiful History of the BTU
The British Thermal Unit gives us a handle on an abstract concept
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Which Building Energy Statistics Make the Most Sense?
Some energy experts focus on kWh per square foot per year — but there are lots of other metrics out there
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Understanding Energy Units
Don't confuse energy and power — it's important to know the difference between Btu and Btu/h, as well as kW and kWh