The key design factor in a VAV system is the control of. the supplied air. The terminal unit should be sized to. take advantage of as much of its potential capacity as. possible. Without this fundamental consideration, the. customer has not received the best value for their VAV. system design.
The amperage rating on the DC motor is not the amperage the treadmill will be using from your wall outlet. Most treadmills only need 10-12 amps from the wall (or less), so a 15 amp circuit is fine, regardless of the rating on the motor. Just look at the amperage rating on the treadmill to see what your wall outlet needs to supply. #2 see #1. #3 Current is always lost in the form of heat when used to power a device. Be it in the motor, the electronics or even the line supplying the current.
ELLIPTICAL. Treadmill at about speed 3.7 (can't go much higher without jogging ) = losing 5 calories a minute, or 50 calories for 10 minutes. Elliptical at level 7 for 10 mins = 70-80 calories burnt. I find THIS easier than the treadmill. So you'd have to do about 1.5x the amount of exercise on a treadmill to get the same elliptical results. And an elliptical is a better muscle work out. Also more fun (in my opinion) Elliptical forces your arms to move. So you will lose arm fat, guaranteed. You CAN move your arms on a treadmill, but it's easier to either forget to move your arms, get lazy, or lose your balance on a treadmill (by not holding onto the handles). Belly fat will come off either way.