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@Debst99 wrote:

  In 2025 they put in a split system (which to my understanding is for cooling and heating).  

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Is this a "heat pump" (both heats and cools)?  Or an AC?  Both can be "split systems".

If it is a "heat pump", enter it as a Heat Pump and not as a furnace or AC (unless it is a second furnace, such as gas, with the heat pump).