Model 3733 20" Box Fan made by company called LASKO
It has 3 settings, high, medium and low, I cannot determine the
Wattage it pulls on the Low setting.
I found a website which says 170 watts but it doesn't break it down
for low medium high settings.
Thanks if you can help.
If you happen to have a multi-meter with AC current function, you can
measure the current and get an estimated wattage.
There may be a power factor which means voltage and current are not in sync.
Power company may charge you more than the real energy used in this case,
though I don't know what formula is used.
A slow and cheap way is to monitor your electric meter with the fan off,
then with it on and try to measure the difference over a period of time.
If it uses 170 watts on high (that's a bit less than a quarter HP) and
your electrcity costs you cents per kWhr. then it will cost about 41
cents per 24 hrs?
If it uses only half the power on 'low' setting, although it may use
less that that, it'll be about 20 cents per continuous 24 hour day.
Not a very significant cost?
Hardly worth going out and spending money on a $20 gadget, that may
not be very accurate at that, to measure how much the fan uses.
Let's see $20/20 cents= operating that fan for 100 days for same cost
as the measuring gadget!
"If it uses only half that power" is the question. For all we know, it may
use TEN TIMES that much power on LOW. The way to find out is with the proper
No, you've got to view this episode as a valid excuse for another tool.
While having a "Kill-A-Watt" meter would be cool & wasting an excuse
to buy a new tool is bad........
I seriously doubt that the fan on LOW uses 5x the high speed setting
power....Terry's analysis is probably pretty close
The fan maker's own website says 170 watts but does not say what it is
at Low or Medium speeds. This was why I wanted to know. Also I wanted
to know because I am going manic crazy making charts on the energy use
in my home. I'm trying to shave off about $100 on my electric bill. At
7.608 cents per KwH you can see how things add up quick.
The damn AC unit is costing me about $117 per month and that's at 78F
setting which is terribly hot and just makes me angry to be all hot
inside my home knowing it could be cooler.
Sorry to rant, thanks
Have you tried one of these:
I used one to help me reduce my electric bill by about $60/month.
I commend you on trying to save but I'd swap rates with you any day. Here
is CT I'm paying 18¢.
Is that $117 for central AC? If so, not bad at all. I spent that much in
June and July to keep a couple of room units going. (total June bill was
$250) August is much cooler and had little AC use. It has been a couple of
years since I've had a bill under $100.
I suggested direct contact to the mfr's customer service; via phone or
email....not getting the info by searching their website
they're very responsive
But Terry's analysis is probably pretty close to right.
fans are cheap to run........dryers (electric) & AC's are MUCH more
I have a setup in my laundry area that allows me to use a fan to dry
clothes hung on hangers.....I can run the fan for 2 days for what a
single dryer load costs. I save the cost of a few dryer loads per
week. I don't use AC so the humidity does boost my
btw 8¢ per KWA is really pretty cheap electricity
does your ulitity offer time of day pricing or a yearly rebate based
on remote AC cycling? When I had a house with AC, I got a $200 check
if I let them shut of my AC unit (only a few hours at a time but as
many days as they wanted)
To cycle my A/C they placed an electrical junction box on the outside
of the compressor, the power for the unit was routed through it.
I believe they could send a radio signal to it to turn the power on &
How big a rebate depended on how many days I agreed to have the A/C
cycled and for how long per day.
Thanks Bob. The only thing similar had heard of was;
1) A means by which Ontario Hydro (I think it was) was able some 50+
years ago to remotely turn off some 'flat rate' electric water heaters
which were fed though a second main circuit breaker in the house main
panel. I had such a panel once and used that 'extra' main breaker to
wire our cooking stove. The regular main breaker fed all the other
individual circuit breakers.
2) there was a British system IIRC named "Rhythmatic" (sounds like an
exercise class doesn't it?) which sent pulses of a certain frequency
down the power lines which caused a mechanically tuned relay to swing
back and forth until it's contacts would switch things such as street
lights on or off, remotely.
This all before the days of digital signals over power lines which are
in some cases causing radio and TV interference.
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