I have a screened in porch with plastic frames over the screens, it’s long a narrow & would be perfect for me to work on my boat this winter. Would infrared heat strips hanging above the boat be adequate to cure the epoxy? I can insulate the bottom of the wall that has R panel on the outside & hang moving blankets over the screen doors. It’s my understanding infrared heats objects rather than the air.
You need to keep the entire area being fiberglassed warm (say 60F) for at least 24-48 hours. Sometimes I have used a plastic “tent” made from 6MIL polyethylene suspended from the ceiling along its length with 2-3 space heaters inside the tent