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AC_Hacker · 10-27-09, 06:14 PM

I did a lot of similar testing last winter.

I turned off my regular heat source, which was a forced air gas furnace, and instead used electric heaters with a kill-a-watt on each heater, logging data about every 4 hours. There were temp fluctuations at night, drifting down until the sun began to rise.

But when I graphed my data (kW/hr vs. Outdoor Temperature), I noticed that there was a much larger variation in kW per hour at various out door temperatures than I had anticipated.

I decided that the humidity of the air, which I was not measuring, plays a much bigger role in heating requirements than I had previously realized...

Regards,

-AC_Hacker

10-27-09, 06:14 PM	#5
AC_Hacker Supreme EcoRenovator Join Date: Mar 2009 Location: Portland, OR Posts: 4,004 Thanks: 303 Thanked 723 Times in 534 Posts	Data (ghost in the machine)... I did a lot of similar testing last winter. I turned off my regular heat source, which was a forced air gas furnace, and instead used electric heaters with a kill-a-watt on each heater, logging data about every 4 hours. There were temp fluctuations at night, drifting down until the sun began to rise. But when I graphed my data (kW/hr vs. Outdoor Temperature), I noticed that there was a much larger variation in kW per hour at various out door temperatures than I had anticipated. I decided that the humidity of the air, which I was not measuring, plays a much bigger role in heating requirements than I had previously realized... Regards, -AC_Hacker