How much Power

How much power does a 8" 450cfm can fan use? Anyone know , i looked on the box and and the fan itself but it dose'nt show anywhere .Thanks for looking.

Probably not over 6-8 amps.

ok another quick question ...how much power does 1000w hps use?? in amps

Holy crap... a BUNCH, LOL. You can probably find that online somewhere. I just know that my 400w makes my meter spin like crazy; a 1,000w would probably sling the paint off the spinner thingy.

indianwarrior said:

ok another quick question ...how much power does 1000w hps use?? in amps

Click to expand...

About 9 on 120VAC from memory. Check the link in my sig.

watts divided by volts = amps so 1000 / 120 = 8.33 and 1000 / 240 = 4.16
Ohm's law - Wikipedia, the free encyclopedia

Phinxter said:

watts divided by volts = amps so 1000 / 120 = 8.33 and 1000 / 240 = 4.16
Ohm's law - Wikipedia, the free encyclopedia

Click to expand...

Add in the ballast overhead. a 400W bulb draws about 450W from the wall. So ballast sucks up 50W

There's something not right about BigBudBalls Elec. Calc.
If your paying .12 per K/H and you have your lights on 12 hours a day, that's $1.44/day times 30 days is $43.20.
He's got $36 listed.

another question about power....

Would it be safe to run 1000w hps in an older house , that uses fuses and not a breaker box?? I don't want to burn the house down
thanks for posting guys you've been a big help so far.

indianwarrior said:

another question about power....

Would it be safe to run 1000w hps in an older house , that uses fuses and not a breaker box?? I don't want to burn the house down
thanks for posting guys you've been a big help so far.

Click to expand...

you may want to make sure that you dont have anything else running on that line. should be ok its less then running a base board heater

The actual fuse box will let you know immediately if you have enough juice. I'm in the same boat, minus the fuses. Ancient house . . . about 6 outlets in a three bedroom, two-story wooden dump. I figure I may have to buy a heavy-duty extension cord and run a separate line up to the grow rooms?
A regular extension cord would be risky, IMO.

you should be ok if you stay 20% under the stated cap of the wiring

will the fuse blow out if thers a problem ? or will the wires catch fire?

haha a some one actually said a > 600 watt fan fan...rofl

well you might want to change out your fuses to make sure you are starting with that working for sure. dying in a fire would ruin your whole day

indianwarrior said:

will the fuse blow out if thers a problem ? or will the wires catch fire?

Click to expand...

In a perfect world, the fuses are made to blow under this condition, and should, well before any dangerous heat grows inside the walls. I said "SHOULD"

you dont want your wiring shoulding on ya though

BongJuice said:

There's something not right about BigBudBalls Elec. Calc.
If your paying .12 per K/H and you have your lights on 12 hours a day, that's $1.44/day times 30 days is $43.20.
He's got $36 listed.

Click to expand...

I dunno. Currently its at .10 a kW, 1000W on for 12 hours and all is correct. $36 a month.
500W $18 a month


Tried it a few different ways and it all was right.

(I think someone did enter the kW cost.)

if i get a power surge bar, will that give me more protection?

better make sure the fuses are new then look to other stuff but start at the source first. no idea if surge will protect anything, i think it works in the opposite direction