Thank you for getting in touch, as you have purchased a vented dryer, these will build condensation in the room/surfaces if there is no ventilation within the laundry. You will need to open a window slightly or purchase a venting kit to vent the hot air outside. 

We also advise ensuring that:
1. The laundry has been adequately spun from the washing machine
2. Lint filters are emptied after each use