Condensation
If there is "significant" condensation you have to remove it, it will cause mould/rot over time, so turn on the exhaust fan! The more a MH is sealed, the fewer air leaks there are to bring in 'fresh' air.
If you have the room, I would suggest a small dehumidifier, it would serve two purposes... it would remove the excess moisture and in the process provide waste heat that will help warm the MH.
Also, attend a 'Dollar Store' and purchase a small temp/hygrometer to monitor the humidity levels.
Stay cool
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