The board doesn't have to be near the fire. Even the fan is separated. I 3d printed a fan mount that threads onto a pipe that runs into the firebox. The board'

The board doesn't have to be near the fire. Even the fan is separated. I 3d printed a fan mount that threads onto a pipe that runs into the firebox. The board' temperature range is 0-70C, so freezing temperatures would be a problem, but high temperatures. The rain would be an issue though.