DTV roof fan, vertical exhaust

Description of DTV roof fan


The DTV roof fan is an extraction ventilator manufactured in cast aluminium, ensuring long-term, problem-free operation. The TGK roof cowl is available for this, ensuring simple and correct ventilation.

The DTV roof fan has a backward-curved B impeller in aluminium with a vertical exhaust; it can be opened for cleaning. DTV is available in 6 sizes: DTV160, -200, -250, -315, -400, and -450.


DTV160 and -200 have a single-phase motor, while the other models have an EC motor. 

See also under Capacity below, and technical data for the different sizes under DTVxxx Technical Data


DTV tolerates temperatures up to 60 °C in normal operation and up to 200 °C for 60 min. in case of fire. DTV250-4-1EC and DTV315-4-1EC: up to 180 °C.

If there is a need for a certified combustion gas fan, we draw your attention to the SEF roof fan and the FSB box fan, described under the product group Fire Protection.

Capacity - overview



  Capacity m3/h
Min. Max.
DTV160-4-1 60 320
DTV200-4-1 120 680
DTV250-4-1EC 300 1,780
DTV315-4-1EC 450 2,950
DTV400-4-1EC 700 5,000
DTV450-4-1EC 1,050 6,300

DTV roof fan


DTV 150 x 100 DTV is made from cast aluminium, giving it a high corrosion resistance (Corrosion class C4 in accordance with EN ISO 12944-2). It is painted in black RAL 7021, a suitable colour for most roofs.

Vertical exhaust

DTV vertikal afkast illustration DTV roof fan is an extract fan with vertical exhaust.

This prevents soiling of the roof and the downdraught of polluted air. It is also less noisy.

Fan impeller

DTV hjul 150 x 100 DTV roof fan is ideal for ventilation tasks requiring efficient and economical ventilation.

The specially developed centrifugal impeller with backward curved blades ensures high efficiency and low operating costs.


DTV åben 150 x 100 DTV roof fan is easy to open for cleaning and maintenance.
Motor types

DTV roof fan

The motor on the DTV is connected directly to the centrifugal impeller, but lies outside the airflow.

DTV roof fan is available with two alternative motors:

  • EC motor 
  • Single-phase voltage controlled AC-motor

The motors are made to protection class IP54 and all materials are as a minimum class F (155 °C).  All motor types have integral current overload protection.

EC motor

The EC motor is a highly efficient permanent-magnet motor of class IE5 with motor control for a 1 x 230 V connection. The motor control has been specially developed for compatibility with the EXHAUSTO DTV roof fan and, when used with this motor, ensures the lowest possible operating costs.
The motor control protects the motor from overloading, blocking, over and under voltage, and over heating. It is factory programmed by EXHAUSTO for optimal operation of the fan. It only has to be connected to a 1 X 230 VAC supply and to an EXHAUSTO EFC1P or MAC12 controller.
The motor controls also provide a Modbus interface for fan control and alarm read-offs etc.

Single-phase AC-motor:

Single-phase AC-motors can be selected for the 2 smallest DTV models. All motors are 4-pole with 1400 rpm and permit direct voltage control using EXHAUSTO controllers EFC15, EFC35 and MAC12 (with MPR4/MPR8 module).


DTV roof fan

DTV fans are designed for use with TGK roof vents, for simple and optimal installation. 

TGK has 4 threaded connectors for fixing the DTV roof fan. Vibration-damping materials are also supplied to ensure that vibrations from DTV are not transferred to the duct system.

The TGK roof vent is insulated for sound and condensation and has an integral cable penetration. As an accessory an AOR anti-backdraught shutter and bracket can be selected.

Read more about the roof vent here.


DTV montering

Flue gas resistance

DTV roof fan

DTV is able as standard to handle a gas temperature of up to 60°C.

Smoke gas resistance data

Add all about the product series DTV roof fan, vertical exhaust


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Teaser ecodesign

Ecodesign Directive

EXHAUSTO VEX air handling units and fans comply with the Ecodesign Directive. Read more here.

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