?On Sun, May 24, 2020 at 08:42 PM, Glen Christensen wrote:

I thought that the less load would be less consumption of power.

Why would a clogged up system or one with more restriction use less power? I find this very interesting.

The work (in a physics sense) that a fan does is move air.? The more air moved, the more work done, the more power required.? A low-restriction system moves a lot a air, and thus does a lot of work and draws a lot of power.? With some restrictions, less air is moved, less work is done, less power needed.??

Imagine you are draining your swimming pool with a 5 gallon bucket.? If you can just throw the water over the side, nothing limits how fast you can work, except available power.? But suppose you are pouring the buckets down your sink drain.? It restricts the rate of work you can do, and thus limits the power drawn from your arms.