Offers an Alternative to traditional air conditioning solutions that have always considered the use of a combination of holes in windows or large openings in the wall, such as the 16 x 42 inch ones, typical in the United States.
Such antiquated solutions are still resilient in the industry, despite the complications of air leaks, additional labor, and structural weakening of exterior walls, which increases exponentially with the number of air conditioners.
The Problem Solving
introduced in Air-Conditioning
the resulting ease of installation of air conditioners is simply amazing, as well as the improvements in the external aesthetics of buildings, along with a general reduction in air leaks and other related advantages, make this solution undeniable.
Money Saving In Refurbishments :
more specifically in residential and commercial as hotels, residences, public institutions, etc.
History of the UKT Air Conditioning Without Outdoor Unit
The UKT Double Flow Technology Preserves AC Efficiency by Using Exclusively External Air Without Wasting the Indoor Air for Condenser Ventilation
…"UKT-Technology is Not so Obvious as it Looks
It is Distilled Science"...
Their research soon went beyond theory and shifted into the real challenge of prototyping a real functional ones.
According to the Records of the Italian and European Patent Offices, this Innovative Technology in the Field of Air Conditioning Appears in a Patent Granted to the Two designed Inventors, Fabrizio and Giuliano Ungarelli, in 1999...
Despite this Initial Invention Dates Back Long Ago, Its Development is still Cited in the Academic Circles and Led to the Filing of Numerous Implementations Over Time...
UKT
Double Flow Technology
Represents an alternative solution
to traditional air conditioning
there was a need to eliminate the external condenser often incompatible with the urban decor or the architecture.
As a matter of fact …
the need to provide air conditioning at the internal rooms, without extended air ducts or complex water systems without any outdoor component remained an HVAC unsolved problem of this century.
WITHOUT EXTERNAL CONDENSER
This innovation was granted several patents and became a University case study.
Their Studies
Included a Balanced Redesigning and Miniaturization of the Air Conditioner Parts, With a Combination of Various Forms of Energy-Transfers Between the Internal Components, the Body Structure, the Air Properties, its Speed and Pressure...
Not Last Energy Recovery.
HOW This Technology Looks :
The People Behind
the Inventions
In the
implementation phase the two engineers combined the knowledge acquired in different sectors, integrating extensive experience in fluid-dynamics.
They analyzed the state of the art in the field of air conditioning from different perspectives.
WHAT IS UKT
DOUBLE FLOW TECHNOLOGY ?
Origins of the Technology
Istitutional Examples :
Double Flow Technology
Implemented With Hydronic Heating in the UKT Air Conditioners : Duetto, Millennium, Synthesis, Vertical .
The Most Visible Peculiarity
Resides in the original way they found to manage the outdoor ventilation which is necessary to release outside the heat removed by the air conditioner from the indoor ambient including the passive one's generated by the compressor.
The Double Flow Technology was Born :
Different Types and Size of External Vent Available for Different Needs
Type B : 9 x 9 x 3" Square Shape.
Optimal for Heavy Rain, Windy and Snowy Zones or Ground Levels , With Integrated Metal Mesh to Protect From Pests.
Hole Required :
- 8" Diameter
Suitable for T1 & T2 ISO
Most Common Temperate Climatic Zones
- 10" Diameter Customized
Suitable for Hot Climatic Zones
- 10" or 12" Special Diameter
Suitable for T3 ISO :
Very Hot / World Tropical Climatic Zones
Example of UKT Ventilation Grille Flush to the External Wall,
Between 1999 and 2001, the inventors invested in an intensive research and development activity which led to the registration of additional patents all of them granted, implementing among other things, the heat pump option, super-heating functionalities, and hydronic heating.
(Follow google Patents for more)
The inventors developed a three-step method to utilize this energy :
First, the cold water is collected into an integrated system and combined with the compressor refrigerant lines, immediately boosting overall performance and cooling capacity.
Subsequently, once the compressor's high temperature brings the condensate water to a boil, its transition from liquid to vapor absorbs a large amount of thermal energy, accounting for most of the energy recovered.
Thirdly, additional energy is recovered by blowing air over the water within the recovery system. This water naturally undergoes spontaneous evaporation, which lowers its temperature, drives further heat absorption and increases compressor efficiency.
ENERGY !
THAT INVISIBLE BUT ESSENTIAL ACHIVEMENT
Energy Recovery
in a context of such extreme miniaturization, it proved essential for the inventors to reduce the size of the heat exchanger.
This principle has been at the base of the UKT ac models : Duetto 1999, Millennium 2000, Synthesis 2004, Vertical, Diamond , which quickly become not only a case of study, but proved that a new path was possible.
Once in operation, an air conditioner produces water condensate, which is naturally generated during the cooling process.
This water is not only cold, but also represents - in latent form - an enormous amount of recyclable free energy.
Defence:
TECHNICAL & HISTORICAL INFORMATION
The UKT Double Flow Technology
or UKT Principle
teaches how the AC's compressor can be cooled by drilling one single hole in the wall, which accommodates two concentric tubes for air intake and exhaust ventilation eliminating the need for an oudoor Unit.
Most of UKT Air Conditioners uses the condensate produced by the AC to boost performance, reduce compressor work preventing overheating , converting normally wasted water into energy and profitable savings.
Less energy consumption and less carbon emissions
SPLIT AIR CONDITIONERS
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Aug 2026
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