Cover primary use is for weather proofing for outside running the generator. Indoor storage cover a plus to keep it clean.Is the cover just for storage? If not maybe some eyebolts(mounted sideways on a dowel) so the cover can slide up about a foot allowing ventilation. Also would provide support so the can stays in place for storage. If you really want to get crazy get a fan and a PTO extender and mount the fan on the extender so when the generator is running the fan is blowing air over the generator.