Hi There !

How expensive is air conditioning (say 15,000 btu)
versus an industrial box fan (say 15,000 cfm)?

I'm only concerned with the cost of electricity,
not the units themselves.

A 5-star answer would be just 2-3 sentences.

A very rough estimate (no sources necessary)
is fine.   Even if you are off
by 30%, that is still accurate enough for me.

All comments greatly appreciated !

Thanks.
ron

Howdy ron,

A/C - 15,000 BTU - 1.5/Kw x $.066/Kwh = $.099/h = $867/yr
Fan - 15,000 CFM - .75/Kw x $.066/Kwh = $.0495/h = $434/yr

Looking Forward, denco-ga

Denco---Oustanding answer, as always.
Thanks!

ron

P.S.   You and snsh must live inside a nuclear reactor.  Here in
California, our power starts at 12 cents/kwh (Tier 1) and increases to
25 cents/kwh (Tier 5).  Tier 5 means you are a residential energy hog
with many air conditioners and remote control TVs----like me!

Thanks for the comparison.  It was exactly what I needed...r

20" box fan
175 watts
3000cfm
$0.10/kwh

works out to around $12/month if left on 24/7
and you need five of those?  $60/month.

Thanks, SNSH !
ron

Thanks for the 5 star rating ron...

The 6.6 cents comes from the EPA, and they might actually be
living inside those reactors, what with that estimate.  

Tier 1 costs: A/C - $1577/yr  Fan - $788/yr
Tier 5 costs: A/C - $3285/yr  Fan - $1643/yr

Where I am (rural Colorado, and part of an electric co-op) we
pay 9.4 cents/Kwh.  We use a fan, much smaller than 15,000 CFM,
to cool our house.

Looking Forward, denco-ga