New2Jacuzzi

Hello, I recently moved into a home with a built in Jacuzzi spa in a Florida Room. The Florida Room is not heated or cooled but is fully enclosed. When we use the spa for any length of time we get steam which leads to condensation on all of the windows, walls, and ceilings. Of course, the colder it is outside, the more steam we have. I have tried opening the windows in the room to help air out the steam, but it seems to cause even more steam (especially in the winter) since the outside air is colder than what is already in the room. Are there any simple solutions for this type of issue with enclosed hot tubs? I am concerned about long term water/mold damage. I have tried a portable dehumidifier to help dry out the air after spa use. I was also thinking a portable heater may help reduce the amount of steam generated since the room temp would be closer to that of the water. Are there any other ideas out there? Thanks in advance.