CPAPtalk.com

snoozysue wrote:Our electricty went up on 1st July due to the Carbon Tax.

If it went up only due to the introduction of carbon tax, you'd be hard pressed to notice the difference.

If you can readily notice the difference, its gone up for entirely different reasons..... almost certainly network provisioning price increases

Cheers,

Bill

I know this is an old topic, but I just found this forum while searching for CPAP power consumption. I had to register and add my own measurements, taken with a German NZR SEM energy monitor (which is very accurate in its measurements).

ResMed S9, humidifier, unheated hose

Pressure setting (min-max): 7-20
Humidifier: on
Humidity setting: 4

Time: 8 hours 15 minutes
Energy: 0,259 kWh
Peak power: 76.7W

Average power: 31.6W

This is for last night, and I aim to take more measurements to see how it varies.

I read somewhere that the ResMed S9 + humidifier has 70W listed as typical power consumption, with peaks up to 150W. Those peaks would have to be very short-term then, since the power brick is rated at 90W. 70W typical consumption seems extremely high; that must be with the humidity set to 10 and the pressure set to a constant 20? I woudln't call that "typical", I'd call it "extreme".

Or maybe it's 70W typical maximum power consumption? That would seem more in line with reality.

Anyway, the reason I'm taking these measurements is that I'm thinking about purchasing a UPS, and am trying to figure out the needed capacity to keep my CPAP running for 8+ hours.

Edit: Oh, and I have to say that CPAP is a wonderful treatment; my respiratory arrests (not sure what it's called in Enligsh) went down from 80-90 an hour to under 10 (usually 3-5).