Green Building Advisor rounds up the responses to a builder wondering whether a gas fireplace insert heater and a single ductless minisplit will be the right fit for his well-insulated, 1,500-square-foot house. The options suggested by the experts include using a gas furnace. One builder notes, “A way to have the gas fireplace, without the monthly costs, which in some areas are ridiculous, is to go with propane.”

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