How much power does a typical furnace draw beyond what the blower requires? I'd assume not much...
Here's the situation: As many know I recently had dual 80k XV95's and 3t XL16i HP's installed in my house. (I know, I still have to post pics. This weekend!) On the first floor, I replaced an 80% furnace and an XR12 AC (that is being re purposed.) After receiving the first new electric bill covering the first floor only, it's approx 60% higher than the same period last year. I checked weather data, and we had 156 cooling degree days both years. There have been no significant changes to my consumption patterns other than this equipment change. (Actually, I used to have a server that lived on 24/7 that is no longer in service...and I was out of town for 7 days this year...so if anything usage should have decreased!)
I've been attempting to narrow down where the power drain is coming from by checking electricity usage of everything I can think of, using either a Kill-A-Watt type meter for plug devices, or a clamp meter for hard wired. The XL16i came in pretty close to its performance data, around 6-7 amps on stage 1, 10-11 amps on stage 2.
The only surprise I had was the furnace, which appears to be drawing around 5-6 amps itself. I know there's a power factor which I don't know, but that seems awfully high to me. There is a CleanEffects in there, and it's difficult for me to find exact power draw for those, but it seems to be pretty low.
So back to my question: Should I assume that number is almost entirely blower consumption, which would imply very high static pressure (based on the blower performance data) or some other anomaly, or is it normal for the furnace to use a few amps in addition to the blower?
This is not a DIY. Believe me, for what I spent I have ZERO intention on messing with anything in the system lol. I just don't want to point fingers at the HVAC without some evidence that there is an issue there (even if doesn't explain the whole increase.) The contractor also redesigned/replaced the first floor duct system.