NEW in the UK Viesa Holiday llls 12 Volt Motorhome Air Conditioner your cleaner, greener, cooling solution.

Thousands of units sold throughout Europe annually to satisfied motorhome owners, and now available for you to enjoy in the UK. Do you want a healthier alternative that allows you to choose whether you want to pay for an electric hook up and still stay cool? The Viesa Holiday IIIs is a very efficient  12 Volt Roof Top Air Conditioner designed specifically for motorhomescamper vans or caravans that uses the very latest technology to keep you cool and create a natural and immediate feeling of comfort and well-being that you can use anytime, anywhere even without an electric hook up if required. You can contact us today by email or telephone 01925 851164 and find out more about how we can keep you cool on the move with the Viesa Holiday 12 Volt Air Conditioner. From Only £1850.00 fully fitted for a limited time only. Laserline also offer a full range of innovative automotive products including Cruise Controls, Motorhome Alarms and Security Systems, Vehicle Tracking and Parking Systems, please contact us today to find out more.

Why choose a Viesa Holiday IIIs 12 Volt Motorhome Air Conditioner ?

  • 12 Volt Operation economical to run
  • It can also be operated while the vehicle is in motion 
  • Prevents excessive surges in temperature
  • Ecologically-friendly: no oil, gasses or chemical additives
  • Low power absorption: 12 volt operation (no need to have EHU or the engine running to use)
  • Silent operation: thanks to an advanced centrifugal pump
  • Healthy: purifies air through a system of filters
  • Thousands of motorhome enthusiasts in Europe confirm its efficiency
  • Creates a comfortable environment: it maintains a constant rate of humidity
  • Natural: it removes body heat through the principle of evaporation
  • Viesa brand chosen by haulage companies for trucks worldwide
  • Priced from only £1850.00 Fully Installed for a limited time only.

The Viesa brand is owned by Colven, a global leader in the development of innovative state-of-the-art technologies that guarantees quality, reliability and service and is now available exclusively in the UK from their official distributor:

Laserline S.P.A Ltd

73 Manchester Road,




01925 851164

BENEFITS: 12 Volt Air Conditioner. Fresh air is 100% filtered • Doors and windows can remain open • It maintains a part of the humidity in the air, which is especially beneficial for allergy conditions or asthma • Reduces fumes, harmful particles and odours • Can be operated while driving • The cooling system efficiency increases as the external temperature rises • Low power consumption, up to 80% more economical than conventional systems • Easy to install, requiring minimum maintenance • Reduces static current • Eliminates dry air

Two Year Warranty

Aerodynamic and silent operating on 12 volts

No gas or chemical additives

Ecological and healthier solution to cooling: Refrigerant gas type such as Domectic and Truma systems consume energy which raises CO2 emissions and contributes to Global Warming. Air conditioners fueled by electricity use a refrigerant that results in gaseous emissions that contribute to both Global Warming and Ozone depletion. In fact one kilogram of refrigerant has the same greenhouse impact as two tonnes of carbon dioxide, which is the equivalent of running a car for six months. The Viesa Holiday llls is better for you and better for the environment.

Here is what one of our customers had to say:

We have bought a new Burstner Lyseo Time T700 and as this will be mainly used in Southern Europe we wanted a system that would provide a cooling environment but also to be used off grid. This ruled out a standard air conditioning unit as this would have required the engine running or site electricity. After some research online we came across the Holiday llls and it ticks all the right boxes as it works off 12 volts and the vans water supply. The additional benefit is that the unit can be used whilst driving being more economic to run that the van cab air conditioning whilst also creating a cool environment in the whole of the van. The unit is compact and we decided to have it fitted in the roof light space in the kitchen area so it can circulate throughout the whole area of the van. We look forward to using this economic unit throughout our travels.

The Holiday III is manufactured entirely using “Made in Italy” components (except for the special Colven patented filter, made of a weave of strands of three different types of wood), and assembled at the Montemurlo production site of Ital Colven, a subsidiary of the Colven group from Argentine. The 12 volt electronic control unit has an LCD display that allows to set all the conditioner’s functions and can be remotely controlled using the provided unit. The system can monitor the battery charge and shuts itself off automatically in the event of low voltage (10.5V), in order to prevent possible damage to the accumulators. Multiple safety protection systems are designed to intervene in the event of a water failure (buzzer signal and pump auto-shutoff), reverse polarity, or operating malfunctions of some components. Twentyfive fan speeds available, with a start/stop programming control timer and a “fan only” function (with the pump disabled). Designed to refresh an environment of no more than 8 linear meters, and with a maximum of 4 people on board, the Holiday III operates at 12 Volt and is installed at the center of the passenger cabin where usually a standard (40 x 40 cm) or midi (50 x 70 cm) porthole is located. It is directly connected to the vehicle’s water system. Filtered, refreshed air is blow through 4 adjustable and independent diffusers that are integrated into the ABS cover fitted onto to the porthole. The cover also features an elegant external frame that can accommodate four integrated spotlights (optional).

Evaporative air coolers work by lowering the perceived temperature, i.e. the heat our body feels. This value is influenced by four different factors: the ambient temperature, relative humidity (i.e. the ratio between the quantity of water vapour contained in a given mass of air, and the maximum quantity of water vapour the mass of air can contain under the same temperature and pressure conditions, measured as a percentage), ventilation, and humidity density. The Viesa evaporative conditioner controls all four of these factors to create a feeling of personal well-being, rather than on the surrounding environment. This provides a proper evaporation of humidity on the skin, a phenomenon whose effect is to remove heat. The cooling process starts with the evaporation of water from the filter surfaces, thus lowering the temperature. Cooled air then enters the cabin at an optimal relative humidity of 40–60%, and at a very low density. Stabilizing the internal relative humidity is essential, since if the air is too damp it is harder – or even impossible – to allow perspiration to evaporate. Similarly, humid air introduced at a low density (i.e. with tiny nebulized droplets measuring 0.002 microns) enables moisture to be distributed over a larger surface, facilitating faster evaporation. Evaporation is further promoted by forced ventilation from the cooler.

Current consumption (12 Volts): Min – 1,3 Ah – 15,6 Watt/hour
Max – 5,8 Ah – 69,6 Watt/hour
Water Consumption: 0,5 to 1,5 litres/hour
Weight: 19 kg empty/20,5 kg fully loaded
Size: Height: 21 cm
Length: 83 cm
Width: 75 cm
Airflow: Max 19 cubic meters/minute
Dimensions of internal grille 56x56x8 (H) cm.(40x40cm porthole)

56x84x8 (H) cm.(50x70cm porthole)

Operating temperature: Min 5°C/Max 50°C air temperature
Voltagge: 12 Volt DC
Fan speeds: 24
Filter evaporator composed of three natural fibres.
  • Easy to read LCD display
  • Clock
  • Battery charge level indicator
  • Programmable on-off switch
  • Automatically drying evaporator filter
  • Manual pump shut-down when used for ventilation only
  • Full remote control of all functions
  • Evaporator filter replacement indicator
  • Empty tank indicator
  • Battery protection
  • Self-diagnostics system
  • Polarity inversion and short circuit protection
  • Automatic shut-down in the absence of water

Installation of your Viesa Holiday llls 12 Volt Air Conditioning unit can take place within the day by one of our approved installers. The roof mounted cooler fits into an existing 400 x 400 skylight where available, or into larger apertures with an adaptor, or the position can be cut into the roof. Please enquire for your no obligation FREE quotation, giving us the make and model of your vehicle and take advantage of the special promotional prices. Remember that the Viesa Holiday llls is the only 12 Volt Air Conditioning unit designed especially for motorhomes, camper vans or indeed caravans, allowing you the benefits of being able to camp "off grid" without using campsites, and it is especially suited to those who travel with their pets and want to leave them safely in the van when visiting tourist attractions, shopping centre's etc  And is ideal for those who want to Wild Camp, or prefer to go Off Grid or use the thousands of European Aires available. 

Please do not hesitate to contact us today to find out more about this amazing 12 volt motorhome air conditioning unit.

Laserline Spa Ltd 

01925 851164

73 Manchester Road




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