Hammer Drill

Hammer drill is also known as a "rotary drill".

Fridge Fan Grills

Fridges often have rear fan grills - these should not be obstructed. The compressor and condenser give off heat and need good ventilation to work correctly and save energy. Fridges should be positioned away from direct sources of heat e.g. direct sunlight, electric stove, radiators et cetera. The room should be well-ventilated and humidity free.