ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
How long does it usually take you to clean one?
depends but usually it does not take that long to clean.
![Gas furnace having problems [Part 2]](http://i.ytimg.com/vi/TfhbQuUXv-8/mqdefault.jpg)
How long does it usually take you to clean one?
depends but usually it does not take that long to clean.