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(A) Boxplots depicting time to boil 2 L of water, in minutes. The BioLite stove required significantly more time than the TCS (p = 0.001); the Greenway and Phillips (p < 0.01) required significantly less time to boil water than the TCS. (B) Cooking efficiency was calculated using Equation 3. Cooking efficiency was significantly higher for the Philips and Eco-Chulha stoves (p < 0.01); cooking efficiency was marginally significantly lower for the BioLite (p = 0.052). * p < 0.01.
