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Suncourt -- ThruWall Room to Room Fan (TW108)

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The ThruWall Room to Room Fan balances temperatures in adjoining rooms, quietly and efficiently, for year round comfort.

Interior use only - not intended for ventilating moisture from bathroom.


  • Quiet operation
  • 2-Speed switch: 110 CFM on high speed, 60 CFM on low speed
  • The ThruWall's telescoping housing installs in frame walls from 3 3/4" to 6 1/2" thick
  • 10' long grounded cord
  • 12 mo. limited warranty
  • Sones:  3

Wall opening must be cut to approx. 7 5/8" in diameter. Corded side of fan is the output/discharge side.


What will the ThruWall fan do for me?
The ThruWall fan is designed to move significant volumes of air from one space in a building to the next.

Why would I want to move air from one space to another?
Similar to the function of the EntreeAir, you may want to move heat from a fireplace to an adjacent space. Similarly, you may want to move cooled air from a window air conditioner to an adjacent space.
In other applications:
-Move heated or cooled air into a garage from the house.
-Move heated or cooled air from one room to another if there is a great difference in temperatures between the two rooms. I.e. one room is nice and warm in the winter. The room   next to it, located over an unheated garage is always cold. Simply blow air from the warm to the cold room.
-Vent a room that always seems stuffy.
-Move air in or out of an All Season room.
-Vent a TV or family room with a smoker.
-Move air between floors.

Which way does the air flow?

The air flows towards the side of the fan with the cord/plug.

How much air does the ThruWall move?

The ThruWall has a powerful 2-speed fan system.
On high speed air movement is 60 Cubic Feet per Minute (CFM).
On low speed air movement is 110 Cubic Feet per Minute (CFM).

Can I reverse the direction that the air flows?

No. You will determine the direction of the airflow when installing the ThruWall. If you would change you mind at a later date, you can re-mount the ThruWall to blow in the other direction.

How much electricity does the ThruWall use?

The ThruWall uses 60 Watts on High speed and 50 Watts on Low speed. Similar to a medium sized light bulb.

How do I control fan speed?

The ThruWall has a High - Low speed rocker switch with Center Off position.

How quiet is the ThruWall?

Very quiet. The sound levels are 51dBA on high speed and 49dBA at low speed. This sound level compares to the sound of a desktop computer fan.

How do I get power to the ThruWall?

The ThruWall has a 10 foot long power cord with grounded plug.

In what wall thickness can I install the ThruWall?

The ThruWall installs in any wall 3.5" to 6.5" thick. The two halves of the fan unit telescope to accommodate different wall thicknesses.

Is the ThruWall safe?

Yes. The ThruWall has been rigorously tested to the Underwriters Laboratories Inc. (UL®) standards. The through the wall portion of the housing is made of galvanized sheet metal, the grilles are high impact flame retardant ABS. The electric motor is a Class B, Thermally Protected motor.