Home > Companies > Alu Roofing > Lomanco ENERGO EKO - Off-grid System

14" diameter aluminium, solar powered ventilation turbine suitable for flat and pitched roofs.

The system is connected to a backup battery powered by a photovoltaic panel. In the absence of wind energy to rotate the turbine, the Lomanco ENERGO EKO system’s control unit will switch to electricity from the battery as a power source. Equally, if there is sufficient wind energy, the photovoltaic panel will charge the battery. If necessary, the turbine can be powered from the grid.

Features and benefits:

  • Extends the life of the roof structure by exhausting damaging heat and moisture from attic/ loft space.
  • Wind powered turbine maximizes ventilation capacity while geared towards going green.
  • Electrical power option enables a minimum performance level to be met regardless of wind conditions.
  • Turbine is of all-aluminium, rust-free construction, with a rigid, spider-type structure.
  • Large flashing for ease of installation.
  • Turbine has 21 air-foil curved vanes with rolled vane edges to deflect water.
  • Turbine moves up to 37% more air than the 12" model.
  • Fully independent off-grid system.
  • Compact and high-performance photovoltaic module.
  • Permanently lubricated upper and lower ball bearings ensure long life, with minimal maintenance required.
  • Vari-pitch base adjusts to a roof pitch of 0–45°.
  • Can withstand winds of up to 110 mph.
  • Intelligent control unit.
  • Optional sensor connectivity (humidity, CO2, PIR) or timer; consult manufacturer for details.
  • Lifetime transferrable warranty for residential use (15 year-warranty for commercial use); two-year warranty on all accessories.

Applications include:

  • Roofs - flat and pitched.
  • Ventilation shafts within tower blocks.
  • Attics/ loft spaces.
  • Stores.
  • Production plants.
  • Cellars.


  • Turbine head.
  • Adjustable neck.
  • Universal base.
  • Photovoltaic module.
  • Back-up battery.
  • Control unit.
  • Electric ventilator with a gear box.
  • Screws/ fixings.

Standard product features


Anodized aluminium.


- Turbine:

  • Height: 270 mm.
  • Diameter: 460 mm.

- Neck:

  • Height: 255 mm.
  • Diameter: 356 mm.

- Base:

  • Opening: 335 mm.
  • Height: 30 mm.
  • Width: 560 mm (opening to flat edge: 100 mm).

Technical characteristics:

  • Nominal voltage: 12 V.
  • Maximum consumption: 19 W.
  • Current consumption: 4 W.
  • Maximum back pressure: 54 Pa.
  • Maximum air flow: 1156 m³/h.



- Electromechanical regulation flaps:

  • Material: Galvanized steel.
  • Allows for control of the amount of air exhausted directly below the turbine. This is an indirect control of the turbine, reducing exhausted air.
  • Two positions: Closed or open.
  • Not supplied with fitted cabling and switches.
  • Flap height: 400 mm (14" diameter version).

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-20-75/365 Rotary roof ventilators

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Alu Roofing


+44 (0)7340 542090

Product reference

Lomanco ENERGO EKO - Off-grid System


[Base for splitter or extension parts]
Galvanized steel; suitable for flat roofs.
[Electromechanical regulation flaps, electric]
See 'Options' for details.
[Electromechanical regulation flaps, mechanical]
See 'Options' for details.
[Extension part, 500 mm-high]
Galvanized steel.
[Extension part, 1000 mm-high]
Galvanized steel.
Galvanized steel; connects two turbines to one outlet. Total height: 680 mm.
[Universal base, black]
Aluminium; suitable for profiled metal roofs and tiled roofs.
[Universal base, brown]
Aluminium; suitable for profiled metal roofs and tiled roofs.
[Universal base, red]
Aluminium; suitable for profiled metal roofs and tiled roofs.

Manufacturer details

27 Berkeley Road,
Trowbridge, BA14 9DX
Tel +44 (0)7340 542090
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