Introduction: Is the AC/Heater Running?

If you want a visual clue that your cooling/heating system is blowing air, just add a fan to a vent.

Print the 3d files from:

http://www.thingiverse.com/thing:479302

Insert a pin into the base, then screw the base onto a vent using the vent's side screw. Rest the printed fan blade on the pin head and the thing will spin like crazy when air is moving through the duct.

Comments

author
MsSweetSatisfaction (author)2014-09-27

Clever little device, definitely useful in the summer time to assure the house stays at a livable temperature. Thanks for sharing!

About This Instructable

436views

2favorites

License:

Bio: I am an author and a maker. My current project is Santa's Shop. I'm working on a science fiction type book--more later. @EngineerRigsby
More by MikeTheMaker:Happy Gear TableHappy FaceJittery Servo Repair
Add instructable to: