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Old 11-19-2012, 11:28 PM   #11
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All of the commercial coolers run the evaporator fan 100% of the time. My bev-Air cooler does that to keep the whole unit at a consistent temp.
My TRUE GDM-49 does the same in a stock setup, but I power the entire unit off/on via controller. Huge electric savings to only have the PC fan running and does a great job.
501irishred

I'm not understanding your huge savings.

The stock TRUE GDM evaporator fan motor draws about 9 watts. If run continuously, that's 216 watt-hours/day or 6.48 kilowatt-hours/month. At $0.15 / kilowatt-hour, that's only 97 cents per month. Two fans can run for less than $2 per month.

I'm not sure which fan you're using but a quick search of 110v pc fans show anywhere from 6 to 13 watts.
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Old 11-20-2012, 02:21 AM   #12
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501irishred

I'm not understanding your huge savings.

The stock TRUE GDM evaporator fan motor draws about 9 watts. If run continuously, that's 216 watt-hours/day or 6.48 kilowatt-hours/month. At $0.15 / kilowatt-hour, that's only 97 cents per month. Two fans can run for less than $2 per month.

I'm not sure which fan you're using but a quick search of 110v pc fans show anywhere from 6 to 13 watts.
Well that's embarrassing. Save a penny, earn a penny?

Even if my math was better, and I'd have run the numbers myself, I'd still have run it this way for simplicity. (had to make myself feel better somehow)
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Old 11-20-2012, 03:15 AM   #13
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Mine has the remote condenser so it is wired seperatly from the the fan.

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Old 11-20-2012, 03:25 AM   #14
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Well that's embarrassing. Save a penny, earn a penny?

Even if my math was better, and I'd have run the numbers myself, I'd still have run it this way for simplicity. (had to make myself feel better somehow)
Not meant to embarrass. I have a GDM-10 ferm chamber and a GDM-12 keg cooler. I ran the numbers a while back to see what that constant air circulation was costing me. In the end, I figured it was worth $2 a month. It's the compressor that draws over 90% of the power usage. When I'm not using the ferm chamber, I block the door open and let the evaporator fan dry everything out for a day and then I unplug it.
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Old 11-20-2012, 03:49 AM   #15
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Not meant to embarrass. I have a GDM-10 ferm chamber and a GDM-12 keg cooler. I ran the numbers a while back to see what that constant air circulation was costing me. In the end, I figured it was worth $2 a month. It's the compressor that draws over 90% of the power usage. When I'm not using the ferm chamber, I block the door open and let the evaporator fan dry everything out for a day and then I unplug it.
No worries, I'm always (most always?) willing to listen to reason!
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Old 11-20-2012, 04:29 AM   #16
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Thanks guys. Exactly what I was looking for. Wasn't confident running a fan or two one way or another. Good input!

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