Attic fans are essential to the ventilation and energy efficiency of your attic. Electric attic fans are typically automatic, but there are two ways to install them. Here are descriptions of those two installation methods and why you might prefer one installation method over the other.
The first method of installing an electric attic fan is to hard-wire the fan into your fuse box. It should be wired into its own fuse switch so that it runs continuously and if it blows its own fuse, you can switch it back on without any interruptions to the power flow to the rest of the attic. It allows you to leave the attic fan to run as it should, and not have to worry about plugging it in or turning it on all the time.
Other electric attic fans are equipped to plug into the nearest outlet in your attic. This may be easier given the fact that you would not have to run electrical wiring from your attic all the way down to your fuse box. However, you will have to find a way to plug the cord in, and if you do not have an outlet already established in your attic, an electrical contractor will have to install one. The electrical contractor may also suggest that you add a plastic safety box around the outlet to protect it from any future water leaks in your attic, which could short out the fan and put your attic in jeopardy.
Why You Might Prefer One of These Two Methods to the Other
If you already have an outlet in your attic, you can install an electrical attic fan with a cord all by yourself. This would cut your costs significantly because you would not have to pay an electrical contractor or electrician to install the fan(s) for you. However, if your attic blows the fuse that controls lighting and power to the entire attic, your attic fan is out of commission too until you can get the power going again.
While it will cost you more money to install an electric attic fan and wire it directly into your fuse box, the fan is certain to continue working without fail unless your whole house loses power. It is the most hands-off approach to installing an attic fan because you can just let it run and do what it is supposed to do without worrying about mechanical or electrical failures. You will have to hire an electrician/ electrical contractor for this method, but then you would have to hire one anyway if you choose the other method and you do not have a working electrical outlet in your attic.
For more about electric attic fans, contact a company such as Green Penguin Insulation insulation contractors.