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**raouliii** · 11-19-2012, 11:28 PM

Quote:

Originally Posted by 501irishred

Quote:

Originally Posted by crazyirishman34

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.

**501irishred** · 11-20-2012, 02:21 AM

Quote:

Originally Posted by raouliii

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

)

**crazyirishman34** · 11-20-2012, 03:15 AM

Mine has the remote condenser so it is wired seperatly from the the fan.

**raouliii** · 11-20-2012, 03:25 AM

Quote:

Originally Posted by 501irishred

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.

**501irishred** · 11-20-2012, 03:49 AM

Quote:

Originally Posted by raouliii

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!

Sebas83 · 11-20-2012, 04:29 AM

Thanks guys. Exactly what I was looking for. Wasn't confident running a fan or two one way or another. Good input!