East Nashville and Germantown have 1920s cottages with a gas furnace in the crawl and an AC coil that was added later. Size for moisture or the house feels cold and damp at 74.
Ask for a heat pump sized to keep your home warm on the coldest usual winter day. The price uses the TN and utility programs your address qualifies for. No sales call, no information sold, no pressure.
This temperature is a regional estimate for this market. Ask your installer to check it for your address.
Size the heat pump to the heating design temperature on this page.