Bionaire Whole-House Triple Window Fan

Bionaire Triple window fan

The Bionaire Whole-House Triple Window Fan has a pretty unique design as far as typical window fans go. It’s three blades run independently to move more air for less power than the typical two blade window fans. The controls are easy to use and on both sides of the fan so it can be manually flipped around to change the airflow from intake to exhaust. It would be nice if the blades were electrically reversible so that the fan didn’t have to be removed from the window to change its airflow though. It also has a manual thermostat to keep a more even room temperature, which is nice because it can be more finely adjusted than digital thermostats can.

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It can fit windows up to 37 inches, and it is shorter so it doesn’t block the view of the outside as much as the regular twin blade fans do. The built in extender screen locks so it stays in place well and can be adjusted to fit either horizontal or vertical windows. It also has two other rigid extenders that can be fit onto the other side for the larger windows.

The Bionaire Whole-House Triple Window Fan operates more like three individual fans that are just part of the same unit, with one blade running on low setting, two on medium and all three on high. It saves a bit of power this way, but it would be better to have the option of running all three blades at once on low and medium speed for a more even air flow.

It would also be nice if it had a remote control because even with the thermostat it’s powerful enough that when it cycles on and off at night it can get a little too cool. It does not blow enough air to really cool a whole house as it says, especially on a hot day, but if other windows are cracked it will get a small breeze going in other rooms.

It doesn’t seem like it’s designed very well to be used as anything more than an intake fan. As already stated, the fan has to be manually reversed to use it in exhaust mode and the front is deeper than the back, so the window screen would have to be removed from most windows to use it in exhaust mode. Also, when it’s mounted vertically the part of the extender that locks only works properly for intake mode because the rigid extenders have to be on the bottom and the locking mechanism is only on one side, so if it’s flipped around to exhaust in a vertical window the fit isn’t secure enough for safety. It’s plastic is a little flimsy as well.

Overall, it looks nice, won’t block the view as much as taller fans and moves good air quietly if a user just wants to keep it installed as an intake fan and leave it that way. It also has a five-year warranty so it will last for years, which makes it worth the cost.

Product features:

  • Shorter height to allow more view past the window
  • Manual controls on both sides for reversible use
  • Built-in adjustable extender screen and two removable panels to fit windows up to 37 inches
  • Manual thermostat to cycle fan on and off to a comfortable temperature
  • Can fit both horizontal and vertical windows


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