Improve air circulation in your van, campervan or trailer with this two-piece Flettner floor ventilation grille. The black plastic grille creates a passive ventilation opening in the vehicle floor and provides a practical addition to electric and wind-driven roof ventilators.
The ventilation grille consists of two parts and has a nominal installation diameter of Ø80 mm. A round Ø83 mm cut-out is required for installation. The visible upper diameter is Ø119 mm, and the installation depth is 90 mm.
An extracting roof ventilator requires an adequate supply of outside air to operate effectively. A suitable ventilation opening low in the vehicle can help provide replacement air.
Combining floor ventilation with a roof ventilator can create airflow from the vehicle floor towards the roof. This may help reduce moisture build-up, condensation and unwanted odours.
The grille does not actively move air. Actual airflow depends on wind, temperature, pressure differences, available ventilation openings and any roof ventilators installed.
This floor ventilation grille can be used as an additional air opening in suitable vehicle ventilation systems, including:
Check that the total free ventilation area is sufficient for the required air exchange. The nominal Ø80 mm installation diameter is not the same as the net free ventilation area.
The nominal installation diameter is Ø80 mm, but installation requires a Ø83 mm opening. Check the dimensions carefully before drilling or cutting the floor.
Installation advice: consider ground clearance, airflow while driving, road spray and the construction of the vehicle. The grille provides an open ventilation passage and is not a watertight floor seal.
Suitable fixing materials and any required sealants must be selected separately.
How many parts does the floor ventilation grille have?
The grille consists of two plastic components.
What is the installation diameter?
The nominal installation diameter is Ø80 mm.
What size hole is required?
A round Ø83 mm opening is required in the vehicle floor. This is 3 mm larger than the nominal installation diameter.
What is the visible upper diameter?
The visible upper section has a diameter of Ø119 mm.
What is the installation depth?
The specified installation depth is 90 mm.
Does the grille require electricity?
No. It operates entirely passively and contains no electric fan motor.
Can it be combined with a Flettner roof ventilator?
Yes. It can provide an additional air inlet for a suitable extracting roof ventilator. Check the required free ventilation area.
Is it approved for mandatory gas appliance ventilation?
Specific regulations may apply to gas installations. Separate certification for mandatory gas ventilation has not been confirmed. Always check the applicable requirements.
A compact two-piece plastic solution for additional passive floor ventilation in vans, campervans and trailers. With an Ø80 mm nominal installation diameter, Ø83 mm cut-out, Ø119 mm upper diameter and 90 mm installation depth.
