In one corner of our garage, we have our water heater. The water heater has a door on the exterior of the house. The hand prints you see on the water heater are there from the efforts to replace the straps that hold the water heater in place (in case of earthquake). Inside the garage, the previous owners had their laundry machines. They took the laundry machines with them, leaving only the sink and a dryer vent tube (on the ground).