G4 Motorhome / Caravan Vent Super 14" - 12V Motor - SV4112-G4

The G4 Vent Super 14" is a robust manual roof vent designed for 14" x 14" (35 x 35 cm) apertures, commonly found in caravans, motor homes, and camper vans. It features a 12V motor with a three-speed switch, offering three forward speeds and two reverse speeds, allowing for adjustable airflow. The vent includes a smoked lid, white screen frame, and collar, along with a 5" garnish that can be trimmed to fit various roof thicknesses.

Where This Goes

This 14″ powered roof vent is designed to be installed in the roof of a caravan, motorhome, campervan or similar RV to provide effective ventilation and airflow control inside the living space. It replaces or fits into a standard roof aperture of approx. 14″ x 14″ (35 × 35 cm) — the same size used by many conventional roof vents.

Typical installation locations:

• Roof center or forward roof area above lounge/kitchen space

• Roof opening created for a vent or skylight replacement

• Anywhere on your roof where existing aperture matches ~14″ × 14″ size

Note: The vent is intended to sit flush with the roof exterior (top side) and connect internally to 12 V power for fan operation via a control switch.

How It Is Fitted 

Before You Start

• Confirm that your roof has an existing 14″ × 14″ (35 × 35 cm) opening or plan to cut one to this size.

• Ensure you have 12 V DC power access inside the vehicle for the vent fan wiring.

Tools & materials you’ll need:
Tape measure, marker pencil, jigsaw or appropriate cutting tool (if cutting new aperture), screwdrivers, sealant (roof-safe silicone/sealant), screws, insulation/dust protection.

Step-by-Step Fitting

1. Prepare the Roof Opening

   • If replacing an existing vent, remove the old unit and clean the aperture.

   • If installing into a new location, carefully cut a 14″ × 14″ hole through the roof panel and inner lining (use protective gear and support materials).

   • File or trim rough edges and clear debris.

2. Check Fitment

   • Test-fit the vent into the opening — the vent’s collar and garnish should sit snugly in the cut-out.

   • The included garnish can be trimmed to match roof thickness differences.

3. Apply Roof Sealant

   • Generously apply a roof-rated sealant around the exterior edge of the aperture. This helps prevent leaks once the vent is secured.

4. Install & Secure the Vent

   • Place the vent unit into the opening and press firmly into the sealant.

   • Secure with screws or fasteners through the vent base flange into the roof structure — ensure screws are tight but not over-torqued.

5. Wire to 12 V Power Supply

   • Connect the vent’s 12 V motor wiring to the vehicle’s fused 12 V circuit via a switch (ideally with three-speed control).

   • Red = +12 V feed; black = ground/earth (check product manual for specifics).

6. Final Adjustments & Testing

   • Turn on power and test all speeds and airflow directions (forward/reverse if available).

   • Ensure the lid opens and closes smoothly and that there are no electrical or mounting issues.

Quick Fit Notes

• Install location: Roof vent for motorhome, caravan, campervan or RV roof.

• Mounting type: Fits a 14″ × 14″ (35 × 35 cm) roof aperture.

• Power: 12 V DC motor with multi-speed control.

• Features: Reversible airflow, three fan speeds forward plus two reverse speeds.

• Includes: Smoked lid, white frame, screen, and trim garnish adaptable for roof thickness.

Pro Tip: Always use a waterproof sealant and check for leaks after the first rain. Periodically check fastener tightness and wiring integrity as part of your seasonal maintenance