ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
Great video ❤. Very informative
Great experiments! straight and clearly explained air movement in the ductwork from a fan. Just one error when you calculate the payback at time 5:20/11:17, it should be $16/23.32 = 0.68 year.
3:34
Don't see how you got $15 for adding turning vanes in 2nd example. Maybe $15 in parts but add another $75ish for labor.
Great video ❤. Very informative
Great experiments! straight and clearly explained air movement in the ductwork from a fan. Just one error when you calculate the payback at time 5:20/11:17, it should be $16/23.32 = 0.68 year.
3:34
Don't see how you got $15 for adding turning vanes in 2nd example. Maybe $15 in parts but add another $75ish for labor.