I did not measure power usage directly, but I do have some actual usage to report. I purchased a sears DieHard portable power 750 jump starter for $39. I have a respironics DC power cable that plugs into the DieHard socket. My pressure is set at a range of 8 to 12 and usually stays around 10. The Di...

I had the same problem. I found that turning the heated humidifier off helped me a lot. Many others have had success turning the humidifier up. Finally gave in and visited the doctor and had my deviated septum fixed. Getting the nose fixed was the best thing I ever did!