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Engineering, 20.09.2020 14:01 jasminethomas5159
A homeowner is trying to decide between a highefficiency natural gas furnace with an efficiency of 97 percent and a ground-source heat pump with a COP of 3.5. The unit costs of electricity and natural gas are $0.115/kWh and $1.42/therm (1 therm 5 105,500 kJ). Determine which system will have a lower energy cost. (Page 273).
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