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3. One of about 3,412 in a kW-h

Alternative clues for the word btu

• About 252 cals
• Roughly 252 calories: Abbr
• Measure of heat: Abbr
• Qty. of heat
• AC term
• 252 calories
• Elec. power measure
• Amt. of heat
• Temperature standard: Abbr
• About 252 calories, briefly