Why this card is a family, not one fan
Dometic currently lists several Fan-Tastic Vent roof-fan models, including 2250, 3350 and 7350. They share the same basic job—powered roof ventilation—but differ in lid operation, speed control, rain sensing and remote control.
Camper manufacturers often write only “Dometic Fan-Tastic Vent” or “Fantastic Fan”. MHS therefore keeps a family-level card instead of pretending that every such camper has the highest-spec 7350.
What is common across the current family
Current Dometic Fan-Tastic Vent products are 12 V powered roof vents designed to move air in and out of the cabin. Dometic describes a 12-inch, 10-blade fan and reversible airflow on the current family.
They are intended for standard RV roof openings, but regional SKUs can differ. Some current pages show 400 × 400 mm while North American material often describes the familiar 14 × 14 in opening. The actual installed SKU and cut-out must therefore be checked before replacement.
Model 2250: the simple current version
Dometic Fan-Tastic Vent 2250 uses three fan speeds, a built-in thermostat, reversible airflow and a manually lifted dome.
The current European page lists 12 V DC operation, approximately 5.49 kg net weight and external dimensions around 469.9 × 469.9 × 190.5 mm for that regional SKU.
MHS explanation.These numbers belong to the 2250 version. A camper source saying only “Fan-Tastic Vent” does not prove manual lift or the 2250 dimensions.
Model 3350: automatic lid and rain sensor
The current 3350 adds an automatic lift motor and rain sensor while retaining three-speed operation and thermostat control. Dometic publishes 12 V DC input and airflow around 920 m³/h on the current page.
This makes 3350 functionally different from 2250. If a camper owner expects the lid to close in rain, the exact model must be confirmed rather than inferred from the family name.
Model 7350: more speed control and remote operation
The 7350 page lists manual speed selection with 14 settings, automatic variable speed through the thermostat, automatic dome operation, rain sensing and a remote control.
These are useful features, but they are not family-wide promises. MHS will not give a generic Fan-Tastic installation remote control or rain-sensor credit unless the camper source identifies a suitable model such as 7350/7300 or otherwise proves those features.
Why the exact submodel matters
Two roof fans can look very similar from inside the camper while having completely different controls. A replacement lid, motor, circuit board or remote can depend on the exact model and regional SKU.
Before ordering parts, find the label on the installed unit or confirm the model in the camper documentation. “Fan-Tastic” is a brand family, not a universal parts number.
Ventilation needs an air path
A roof fan can exhaust stale or warm air, but replacement air must enter somewhere. Depending on the camper, that may be through a window, dedicated vent or another opening.
MHS explanation.A powerful fan with every other opening sealed cannot produce the same airflow as a well-designed ventilation path. Think about where air enters and how it travels through the sleeping and cooking zones.
Intake and exhaust are different use cases
Reversible airflow lets the current family move air into or out of the cabin. Exhaust is useful for removing warm or humid air; intake can bring outside air into the living space.
The best direction depends on outdoor conditions and the location of other openings. There is no single “correct” direction for every camping situation.
Thermostat control is not air conditioning
Several Fan-Tastic variants include thermostat control. The thermostat can change fan operation according to temperature, but the fan does not refrigerate or dehumidify air like an air conditioner.
If outside air is hot and humid, a roof fan cannot create cold dry air by itself. Its job is ventilation.
Rain behaviour varies by model
This is one of the most important family differences. The 3350 and 7350 current product pages describe rain-sensor automatic closure. The 2250 page does not.
Therefore a generic camper listing should never be described as having automatic rain closure without separate evidence.
Installation and electrical checks
Dometic's Fan-Tastic installation manual specifies 12 V DC use and warns against connecting the fan directly to 110/120 V AC. The supply needs suitable fuse protection and correct polarity.
The roof opening also needs proper sealing and structural installation. A technical article is not a cut template; use the manual for the actual submodel and regional SKU.
What to check in a camper
Find the label and record the exact model: 2250, 3350, 7350, 7300, 1400 or another variant. Then test the functions that matter—reverse airflow, thermostat, lid motor, rain sensor and remote—rather than assuming them.
Check that the screen and fan blade can be cleaned, that the lid opens without hitting solar panels or roof accessories, and that water sealing around the flange is sound.
Why MHS links the family card
When the camper manufacturer clearly names Dometic Fan-Tastic Vent but omits the model number, the installed product family is still known. That is enough for a family-level relationship.
The relationship does not transfer 7350-specific features to an unidentified Fan-Tastic. Where the camper source names 7300 or 1400, that exact detail remains in the evidence text even though this shared card explains the broader family.
Key takeaway
Dometic Fan-Tastic Vent is a 12 V powered roof-ventilation family with meaningful differences between submodels. Confirm the exact model before relying on rain sensing, powered lid operation, remote control, speed count or replacement dimensions.
Sources
Family-level record. Variant-specific rain sensor, lid drive, speed count, remote and dimensions are intentionally separated.