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: Is there a setting so that  you make it run even when no air flow is detected?
Document: I've used this product to increase heat flow in a room that is at the end of a end of a long duct run. It's a little loud but not so loud to drown out the television. It took a little experimenting to get the thermostat setting correct but once I had it right it worked well all season. I didn't try it for A/C so I just put the unit in storage until the next season.
So in order for this unit to work, you really need to leave the room's door open so the room doesn't become pressurized which will slow down air flow. Also, if your home uses flexible supply or return ducts running through an attic, take a look up there to make sure that no one stepped on or crushed your flexible duct runs.
Maybe I have a unique situation but the 2 bedrooms at the end of the line had no benefit from this unit. I tried various setting but it would still turn on even when the furnace was off. It's fan is some what noisy but not intolerible.I had to return it.
We have a room (master bedroom) in our one-story duplex that, for some reason, just stays a lot warmer than the rest of the house... we had to keep the other rooms freezing sometimes just to keep it comfortable in there for sleeping. So I finally broke down and ordered one of these. I didn't want to mess with the automatic on/off and temperature sensing features so I just set the fan to run continuously. It does make a substantial difference in our bedroom.
We have a home office in a 10'x12' second-story bedroom in which two computers and monitors run an average of 8 hours a day. During the summer months, that office will often get to 85 degrees or more, even with the AC on. So I bought this register booster at a local warehouse store to see if it would help cool the room.
During the summer months, the upstairs rooms in our house are considerably warmer than the ground level and basement. Using the Suncourt 'Register Booster' in combination with opening/closing certain registers, has helped us achieve a more balanced and uniform cooling and heating between all levels of our home. This is truly a great product that costs pennies a day to run, and that gives you a more than ample return in increased comfort level and even a bit of savings on your monthly bill.
It might be good for some applications but it impeaded the air flow I had and the auto on off was a joke. I guess in some cases such as other reviews it helped. So just weight your options. It's amazon so returning is easy
To clarify why I think there's such a huge discrepancy between reviewers, it's probably because this thing is only effective if you have a LOW AIRFLOW REGISTER. That is, if your register is working properly and blowing out a sufficient amount of air already, this won't help at all (it may actually restrict airflow). However, if your register barely has any airflow through it, then this will make a huge difference.
since installing this (ie plugging it in , palcing on vent and making minor adjustments it has worked great the room is now much warmer and more comfortable then before,this is a great item and increases the air flow from the vent.
We bought this for our son who recently moved into his first apartment in college. The appartment is air conditioned but his room is on the second floor of the unit, and the vent in his room had very low air flow. He reported that the product worked but did not significantly lower the temperature of his room. Given the price, I would say it was worth it.
Answer: yes