Many of the whole house fans that I have seen are 1/3 to 1/2 HP which is not
usually big enough to require a dedicated circuit. However I have seen some
wired by others where the lights will dim or blink momentarily when the fan
comes on because it shares the same circuit. In other words, the best way
to go is with a separate circuit.
If it's a small fan (in terms of how much current it draws, say 1 or 2
amps max.), then you can feed it from a nearby outlet, or a junction box
or some such. Just make sure the circuit you're adding it to isn't close
to its capacity (meaning the rating of the circuit breaker feeding the
"Wikipedia ... it reminds me ... of dogs barking idiotically through
endless nights. It is so bad that a sort of grandeur creeps into it.
Yes, but you mean outlet or receptacle. The plug is the thing on the
ned of a cord. It makes me think you plan on connecting a cord to the
fan and plugging it to an outlet. You're not going to do that, I
Most house fans do not require a separate circuit. However the
advantages of a separate circuit will reduce the chance of overloading
and allow you more control (covering the fan during the off season).
You have to consider the fan wattage and the current load on the
close-by circuit you wish to use.
I guess what you mean is that with a separate circuit you can turn off
the breaker and lower the chance you'll accidentally turn the fan on
when it is covered. But that only works if you remember to switch the
breaker off, and it doesn't require a separate circuit if you don't
forget to not turn the fan on, and even if you turn the fan on with
the cover on, isn't it just going to blow the cover into the attic?
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