I have a small (960 sq ft) house that has had some moisture damage and mold inside the walls. I have addressed the causes of the moisture, removed the drywall, and will be replacing damaged studs. I would like to keep humidity at a minimum to prevent re-growth of mold in the future.

There is currently no HVAC at all. I know that an air conditioner and a gas furnace will both dry out the air. Does anyone know if a heat pump will dry out the air in winter? If so, how does it compare to a gas furnace as far as dehumidication?

Any advice will be greatly appreciated. Thanks.