Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Using the heat when it's cold... mpg drain?

PaleMelanesian · 10-16-2009, 10:34 AM

I've measured my blower, and the power draw is proportional to the speed setting - low speed uses less than high speed. Sitting with the engine off, reading battery voltage, and each higher setting drops the voltage another 0.1. Back to a lower setting and that 0.1 comes back. I'm not sure about the why or how, though.

Volts - Fan setting
12.2 - Off
12.1 - 1
12.0 - 2
11.9 - 3
11.8 - 4

10-16-2009, 10:34 AM	#13 (permalink)
PaleMelanesian Master EcoModder Join Date: Dec 2007 Location: Texas Posts: 1,402 PaleCivic - '96 Civic DX Sedan Team Honda 90 day: 72.37 mpg (US) Thanks: 123 Thanked 123 Times in 87 Posts	I've measured my blower, and the power draw is proportional to the speed setting - low speed uses less than high speed. Sitting with the engine off, reading battery voltage, and each higher setting drops the voltage another 0.1. Back to a lower setting and that 0.1 comes back. I'm not sure about the why or how, though. Volts - Fan setting 12.2 - Off 12.1 - 1 12.0 - 2 11.9 - 3 11.8 - 4 __________________ - - - - -Best 11-mile commute: 105 mpg - - - - -Best tank: 88.5 mpg / 1133 miles Last edited by PaleMelanesian; 10-19-2009 at 01:16 PM.. Reason: add actual numbers