PDA

View Full Version : How much electricity will I use if I run my air cleaner 24/7?

01-16-2010, 02:17 PM
Hello again,

I would like to thank everybody for the advice I got in the fall during the install of my new furnace and air filtration system.

I got the Goodman GMH950704CXA and the Aprilaire 5000 and have been very satisfied with the results. (gas usage down about 35% from last year).

My question today is; how much additional electricity would I be using if I run the fan on the furnace all the time to keep the Aprilaire actively cleaning the air.

Is this something I can find in the manual and make a computation based on my electricity rates?

If so, what might the formula be?

Thanks for any insight on this,

Dan

WhoIsThat?
01-16-2010, 02:37 PM
http://www.aprilaire.com/themes/aa/en/manuals/AprilaireModel5000_SafetRecall.pdf

h additional electricity would I be using if I run the fan on the furnace all the time to keep the Aprilaire actively cleaning the air.

Assuming a 1/3 hp fan and negligible draw from the air cleaner, 500w x 8760 hrs/yr = 4600 kwh/yr.

01-16-2010, 02:46 PM
Thanks for the heads up. I bought mine 8-2009 so I should be good.

01-16-2010, 03:38 PM
Sorry, I only saw the link the first time. I'll find my electric bill and do some math.

Does this mean you're estimating 500 watts for every hour of use? (like having 5 lights on with 100 watt bulbs)

Thanks,

Dan

amd
01-18-2010, 03:05 AM
Does this mean you're estimating 500 watts for every hour of use? (like having 5 lights on with 100 watt bulbs)

On high.

Most multi-speed psc blower furnaces can be set up to run the fan continuously on low and switch to the appropriate speed when there's a call for heating/cooling.

PSC motors aren't too efficient on low, so you're still looking at probably 200-300wh per hour.

The GMV95 would have been a more suitable choice for running the blower continuously (variable speed ecm), but it's too late now.

------------------------------
EACs are usually rated at 40 Watts.

gary_g
01-18-2010, 02:22 PM
Sorry, I only saw the link the first time. I'll find my electric bill and do some math.

Does this mean you're estimating 500 watts for every hour of use? (like having 5 lights on with 100 watt bulbs)

Thanks,

Dan

Assuming 500 watts for the fan, 40 watts for the air cleaner, and 10 cents per kw-hr electric rate:

.54 kw-hrs x 10 cents per kw/hr = 5.4 cents per hr.

Take care.

01-22-2010, 08:33 PM
Thanks,

Once again, this place is an awesome source of information. That gives me a good idea since 10 cents per kw/h is about what I pay.

I will look into the ecotech retrofit motor option with my installer.

Dan

01-22-2010, 08:42 PM
Forgot to mention AMD, I agree I should have kicked out the extra for the GMV which I believed you mentioned in my previous thread. Of course cost was a factor, but in hind site I could have probably come up with the extra cash.

Ya live ya learn!

Thanks all for all the help,

Dan

beenthere
01-22-2010, 10:55 PM