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You’re having your home’s heating system replaced, and the heating contractor has specified a new system that supplies energy at the maximum rate of 40 kW. You know that your house loses energy at the rate of 1.3 kW per °C temperature difference between interior and exterior, and the minimum winter temperature in your area is −15°C. You’d like to maintain 20°C (68°F) indoors. Should you go with the system your contractor recommends?
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