We travel with one small dog that doesn't bark when we're not around. We chose a breed specifically that had this trait.
When leaving her in the MH while we're away, we have to limit the away time so she doesn't whittle you-know-where. For moderate temperatures, we leave the roof vent fan on medium or high pulling air all the way through the coach area. For hot temperatues and no hookups, we leave the generator running to power the air conditioner. When doing this, we maintain slight air pressure inside the coach while running the air conditioner so that no fumes can enter anywhere. This is the same thing we do for ourselves whenever we're in the coach in hot weather dry camping and have to use the generator for air conditioning.
