Dometic™ Fantastic 803350 RV Trailer Roof Vent Model 3350 - Powered Lift

This Fan-Tastic Vent roof has a built-in 12V fan that uses a thermostat to help maintain an even temperature inside your RV, camper, or enclosed trailer. The fan can also be controlled manually with the built-in hand knob or with the controls on the vent housing. A rain sensor is included as well to signal the dome to close and the fan to shut off when it gets wet.

Air out your RV after cooking or just draw in some fresh air while you sleep. This variable-speed ceiling fan operates in 2 modes: manual and automatic. The fan activates when you move the fan blade rocker switch to the in or the out position, which designates the direction of airflow.

When using the automatic mode, you can preset the fan to maintain a desired temperature inside your RV. The thermostat dial is color coded, with dark blue representing the coolest setting and dark red representing the warmest setting. The fan's internal thermostat will sense the actual room temperature, and the fan will run until the preset temperature is achieved. When the temperature rises above the preset temperature, the fan will automatically kick on again. So when you go out, you don't have to waste energy by leaving the vent running at full blast just to ensure that your RV is cool when you return. And because the fan will activate anytime that the preset temperature is reached, you can set up the system to ensure that your pets remain comfortable while you're out.

To control the fan manually, turn the speed knob on the vent housing. There are 3 speeds: low, medium, and high. There is also an off position.

This Fan-Tastic Vent has a powered lift arm for the dome, so you don't have to manually crank it open or closed. The dome automatically opens when you turn on the fan. You can also use the small rocker switch on the vent housing to open and close the dome when the fan is not running. And a hand knob is built in so that you can operate the dome in the event of a power failure.

A moisture sensor ensures that the dome will close when rain or snow hits. So you can leave the vent running or preset it to run at a certain temperature, even if the forecast calls for rain. When the sensor gets wet, it signals the dome to close. With the dome closed, the fan blades will stop running. When the sensor dries, the dome will re-open and the fan blades will resume operation. To keep the sensor from activating in rain, snow, or humid and dewy conditions, simply add a vent cover (sold separately) to block moisture.

This vent requires of 14 1/4" X 14 1/4" opening in your trailer's roof and ceiling. To replace an old vent, install this vent into the existing opening. If your roof does not already have a vent, you will need to mark and cut an opening between roof joists to install this unit. The 2-wire design makes it easy to have your vent hooked up and ready for use. This fan does not come with installation components, see below for installation kit options.