Press until you get the heat you require, and then the start knob. The oven will beep when it reaches the desired temperature. Put the food in, then set the cooking time by turning the start knob. Press start again. Please make sure the oven is clean inside before you leave.
Coffee machine: Basic filter coffee with reusable filter. Please make sure the jug and filter are clean before you leave.
Hairdryers: There are two, one in each bathroom.