Use the objects in the following levels to turn to toast. Note: Some objects need to be activated or destroyed first so they give off heat. Other objects, such as ceiling lights, will require that you hold onto them until the meter fills in order to get toasted.
Level 1 "Kitchen"
Toaster
Open oven
Stove top
Ceiling lights
Activated rocket exhaust
Level 2 "Lounge"
Wall heating unit
Standing floor lamp
Ceiling lights
Smashed TV top. Climb to the shelves and push the bowling ball onto the television.
Level 3 "Bedroom
Hair iron
Clothing iron
Standing floor lamp
Ceiling lights
Level 4 "Bathroom"
Hair dryer
Radiator
Ceiling lights