A designer is sizing a geothermal system for a retrofit home that was originally designed for a gas furnace. What is the primary concern with using the old equipment nameplate capacity as the new geothermal sizing target?
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A
Old gas furnace systems are frequently oversized, which would lead to an oversized geothermal system
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B
Gas furnaces operate at lower efficiency than geothermal, so the same size is always too small
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C
Geothermal heat pumps cannot replace gas furnaces in existing duct systems
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D
Nameplate capacity of gas furnaces is measured in watts, not BTU/hr