Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Does the unit come with a plug type cord or does it have to be hard wired?
Document: Hinged louvers are the best. Make sure you set the fan's thermostat to come on at 90 degrees F.  Fan will run anytime the attic temperature passes 90 degrees F.  and shuts off below that temperature. In late spring when outdoor temperatures increase this fan will allow you to go without using the air conditioner much later into the season. Once air conditioning is needed this unit will decrease the air conditioner useage to save more money. Help the environment. Don't be fuelish. Get an attic fan.
Have only had it running for a few weeks now. So far, so good.Received in a week. Fairly easy to install, I used a extension cord (cut off female end & connected with wire nuts) so I can plug it in as needed. One of the four mounting tabs had broken slightly but I was still able to mount it without a problem. Thermostat switch was pretty much dead on and seems to work fine.
Purchased the vent to alleviate heat collection in the attic.Mounting and electrical connections were easy, but time consuming.After verifying placement, electrical service, I found the unitthermometer would not work at any temperature setting. The unit was basically non-functional right out of the box.I will not buy another unit. My time and efforts were wasted. $$$$ wasted.
Mine generally is kicking on around noon or 1 pm and kicking off sometime in the early evening. The other day it was 90F outside and the fan kept the attic a stable 107F until around 4 pm (neighbor's tree shades the roof) when temperatures started to fall, kicking off at 7pm and around 95F (and then temps quickly shot back up to 100F). The unit itself is quiet and I can only hear the barest of hums when it is in operation.
APPLICATION:  Attic gable end fan mounted in south gable of my house in central Florida. It was installed 8/2005 and quit working 9/2008. The house is 21 years old with two gable end attic vents. Total fans so far:  south end I am installing my fourth, north end the second one is still running.SHORT LIFE:  This unit only gave me 3 years life.
I do not consider 3 years adequate life. The other end of the house has a Master Flow PG-2 sheet metal design and has run for more than 10 years (might just be luck in reading those reviews! ).GREAT DESIGN:  The rigid plastic frame is superior to the sheet metal type. It is also significantly lower profile (sticks into the attic a shorter distance).EASIEST INSTALL:  The rigid plastic frame allows you to mount it straight to the studs or frame of your vent area.
Get this! Best way to save on air conditioning and thus electric useage. This is an ecologically sound investment. Reduces attic temperature dramatically with subsequent reduction in temperature inside your house. Ceilings adjacent to attic conduct heat proportionally to the temperature in the attic. No other device reduces that temperature more effectively than an attic fan. And a gable end fan is without a doubt the most effective type. It's much more effective than a roof vent fan as the volume of air moved is greater.
I installed this in my attic to better ventilate on non-windy days when the temperatures can hit 125F or higher. I agree with another poster that you really should set the thermostat using a thermometer. So go buy a wired remote thermometer where you can run the wire up through the attic access hole. I found mine is roughly 5 degrees off from the dial.
the production was delivered fast, before I knew it, it was delivered, came in perfect condition, then it was very easy to install, just connect to 110 volt, put it in the desired area like attic vent, set temp and done, turned on when it got to desired temp, not to load with good insulation, can barely here it.. also put one in my garage and it lower the temp in the garage by ten degress..  best thing i did... thanks gable
Tip - You may need to build a frame to hold the fan (or add a could of cross-beams for support). If you build a frame, consider attaching it to the fan before installing both in the attic.
Answer: no