NO OUTDOOR UNIT AIR CONDITIONERS | LEADING THE TRANSFORMATION NET-ZERO WITHOUT THE NEED FOR AN OUTDOOR UNIT

UKT Packaged Air Conditioners

Air Conditioners

Leading the Transformation

Net Zero

 

WITHOUT THE NEED

FOR AN OUTDOOR UNIT


AC Solutions

WITHOUT

OUTDOOR UNIT


ALL-in-ONE
AIR CONDITIONERS
Europe
UKT Packaged Air Conditioners

Click on the images

to discover a hidden World:


The largest Range of

Air Conditioners without the need for an outdoor unit

preserving the image of modern and historic buildings since 1998.


The UKT Baby Type HVAC is a compact, all-in-one, indoor-mounted air conditioner and heat pump that operates without an external condenser unit. Utilizing patented single-hole technology, it provides efficient cooling, heating, and ventilation
COOLING Up  to 65 m2
WATT  from 2,2 kW  to 3,7 kW
BTU from 7,5k  to 12,500
HEAT-PUMP OPTION
WATT  from 2,2 kW  to 3,7 kW
BTU from 7,5k  to 12,500
SUPER-HEATING OPTION
++ ENERGY SAVING
BABY HVAC
The model UKT Baby HVAC is a high-end, all-metal packaged air conditioner designed for indoor installation without an outdoor unit.
Ideal for premium residential and commercial renovations, it serves as an elegant and secure alternative to traditional window AC units.

Affectionately dubbed the "Baby AC" by UKT engineering team, this unit packs decades of heavy-duty R&D and large-model experience into a sleek, compact design built for your space.

UKT Baby HVAC Utilizes UKT proprietary 'Double-Flow' technology, the system handles all compressor ventilation through a single exterior wall hole—delivering a simple, rapid, and aesthetically clean climate control solution.
The UKT Synthesis HVAC is an all-in-one, ductless air conditioner and heat pump that operates without an outdoor unit, utilizing a 10-inch profile for flush-mount, hotel-style installation. It serves as a direct, all-metal PTAC replacement, offering 9,500 to 12,500 Btu of cooling and 14,000 Btu of heating for residential and commercial applications.
COOLING Up to 65 m2
WATT  from 2,8 kW  to 3,7 kW
BTU from 9,5k  to 12,500
HEAT-PUMP OPTION
WATT  from 3,2 kW to 4,1 kW
BTU from 11,000 to 14,000
SUPER-HEATING OPTION
+++ ENERGY SAVING
SYNTHESIS HVAC
The UKT Synthesis HVAC is a compact, high-end, all-metal air conditioner designed for indoor installation with an ultra-slim profile of just 10 inches.

Engineered specifically for the hospitality sector, it serves as a highly reliable replacement for traditional North American PTAC systems—instantly upgrading the space without requiring costly wall sleeve replacements or building modifications.

Utilizing proprietary 'Double-Flow' technology, the unit channels all compressor ventilation through a single exterior wall hole, offering a sleek and efficient alternative to traditional HVAC systems.
The PTAC SUPER-SLIM HIGHNOON model is a built-in air conditioner designed to occupy just 5 inches of interior space, while excelling in terms of performance and energy efficiency.
COOLING Up to 70 m2
WATT From 2,8 kW  to 3,7 kW
BTU From 9,500 to 12.500
HEAT-PUMP OPTION
WATT  from 3,3 kW to 4,4 kW
BTU from 11,000 to 15,000
SUPER-HEATING OPTION
++++ ENERGY SAVING
HIGHNOON HVAC
SLEEVED PTAC
The PTAC SUPER-SLIM UKT HIGHNOON MODEL is an all-metal, high-end packaged air conditioner that delivers elite performance and energy efficiency while occupying just 5 inches of interior space and 8 inches of through-the-wall depth

Designed as a direct retrofit for traditional PTAC units, it offers multiple sleeve size combinations for a seamless installation from 14.5" x 35,5" up to 16" x 42" .

This powerful system features three above-average ventilation speeds for premium indoor comfort, energy savings and Super-Silent operation.
The PTAC SUPER-SLIM SUPER COMPACT HIGHNOON model is a built-in air conditioner designed to occupy just 5 inches of interior space, while excelling in terms of performance and energy efficiency.
COOLING Up to 65 m2
WATT From 2,8 kW  to 3,7 kW
BTU From 9,500 to 12,500
WATT From 1,8 kW  to 3,7 kW
+++ ENERGY SAVING
HIGHNOON HVAC
SUPER COMPACT
SLEEVED PTAC
The PTAC SUPER-SLIM COMPACT HIGHNOON is an all-metal, high-end packaged air conditioner that delivers elite performance and energy efficiency while occupying just 5 inches of interior space and 8 inches of through-the-wall depth

Designed as a direct retrofit for traditional PTAC units, it offers multiple sleeve size combinations for a seamless installation from 14.5" x 35,5" up to 16" x 42" .

This EXTREMLY COMPACT powerful system provides up to 3,7 kW of cooling, up to 4,4 kW of heating, featuring three ventilation speeds for premium indoor comfort as the larger model.
The UKT Vertical HVAC is a compact, full metal design, high-end , packaged air conditioner designed for interior installation which operated without the need for an outdoor unit, ideal for residential and commercial renovations. Utilizing proprietary
COOLING Up to 68 m2
WATT  From 2,8 kW  to 3,7 kW
BTU From 9,500 to 12,500
WATT From 1,8 kW  to 3,7 kW
+++  ENERGY SAVING
VERTICAL HVAC
The UKT Vertical HVAC is a compact, high-end, all-metal packaged air conditioner engineered for indoor installation without an outdoor unit.

Ideal for residential and commercial renovations, its slim vertical design occupies only a small strip of wall space.

Utilizing proprietary 'Double-Flow' technology, the system routes all compressor ventilation through a single exterior wall hole—offering a highly efficient, aesthetically clean alternative to traditional air conditioning.
The UKT Vertical HVAC is a compact, full metal design, high-end , packaged air conditioner designed for interior installation which operated without the need for an outdoor unit, ideal for residential and commercial renovations. Utilizing proprietary
COOLING Up to 65 m2
WATT From 2,8 kW  to 3,7  kW
BTU From 9,500 to 12,500
Calories From 3,770 to 5,000 HH
BTU From 15,000 to 20,000 HH
++++ ENERGY SAVING
VERTICAL HYDRONIC
HH - HWS
HVAC
The UKT Vertical HVAC with Hydronic-Heating or Hot-Water-System utilizes the proven UKT-Vertical indoor chassis, adding a built-in water circuit and an integrated water pump.

This innovative model allows property owners to replace traditional water radiators with a far more effective, ventilated heating solution.

Able to provide both robust heating and room-by-room air conditioning from a single unit instead of multiple separate systems, it completely eliminates the need for an outdoor unit while maximizing indoor space.
The ATTIC-COMPACT is a plug-and-play, self-contained ductable AC for attics and ceilings. Requires no refrigerant lines or brazing for fast installation.
NET-ZERO CAPABILITIES
COOLING Up to 85 m2
WATT from 4,4 kW  to 5,3 kW
BTU from 15,000  to 18,000
HEAT-PUMP OPTION
WATT from 4,4 kW  to 5,3 kW
++ ENERGY SAVING
ATTIC-COMPACT
PACKAGED DUCTABLE
HVAC
The Model ATTIC-COMPACT is an ultra-compact, self-contained, monoblock air conditioning unit designed for fast, plug-and-play installation in attics, false ceilings, floors, or basements.

Featuring integrated air flanges for rapid setup, this ductable system requires no refrigerant charging, no pipelines, and no brazing.

Simply connect the ducting to deliver complete ventilation, cooling, heating, and dehumidification directly indoors.
The ATTIC HVAC is a plug-and-play, self-contained ductable system with integrated heat-pump and back-up heating. No refrigerant piping or brazing required.
NET-ZERO CAPABILITIES
COOLING Up  to 110 m2
WATT  from 5,3 kW  to 7,0 kW
BTU from 18,000  to 24,000
HEAT-PUMP OPTION
BTU Up to 24,000 HP
BACKUP-HEATING OPTION
SUPER-HEATING OPTION
+++ ENERGY SAVING
ATTIC DUCTABLE HVAC
HIDDEN POWER :
"The ghost AC that lives in your Attic or Basement, NOT your yard.."
The Model ATTIC Ductable HVAC is a ductable self-contained, monoblock, air conditioning unit engineered for flexible installation in attics, false ceilings, floors, or basements.

Ideal for homes and commercial, providing air conditioning preserving architecture.

It integrates seamlessly with various plenums and air outputs for a fast, simplified setup.

This self-contained system is provided refrigerant charged, it requires no brazing, it connects directly to duct work to provide premium cooling, heat-pump heating, back-up heating, dehumidification.
The UKT Attic Ductable Packaged HVAC 26000 is a high-capacity, all-in-one indoor unit designed for heating, cooling, and dehumidification without requiring a traditional external condenser. Engineered for installations where exterior modifications are restricted, this unit is concealed within attics or ceilings and features dual-circuit technology, high static pressure blowers, and flexible air configuration options
NET-ZERO CAPABILITIES
COOLING Up to 140 m2
WATT From 6,2 kW  to 7,6 kW
BTU From 21k  to 26,000
HEAT-PUMP OPTION
BTU from 24k to 29,000
BACKUP-HEATING OPTION
SUPER-HEATING OPTION
HEAVY-DUTY BLOWERS
+++ ENERGY SAVING
UKT ATTIC WINDMAKER
HVAC DUCTABLE PACKAGED
HVAC
The Model ATTIC WINDMAKER combines the features of the standard Attic-Ductable with extraordinary ventilation capacity and high static pressure to deliver the power of a much larger AC system.
Engineered for seamless installation in attics, false ceilings, floors, or basements, it integrates easily with various plenums and air outputs.

Ideal for homes and commercial, providing air conditioning preserving architecture.

This self-contained system is provided refrigerant charged, it requires no brazing, it connects directly to duct work to provide premium cooling, heat-pump heating, back-up heating, dehumidification, and high-volume ventilation.
The UKT BABY Ductable is an ultra-compact AC that requires no external unit. Designed to hide inside furniture, cabinetry, and elevator ventilation systems.
COOLING Up to 65 m2
WATT From 2.8 kW to 3,6 kW
BTU From 9,500 to 12,500
HEAT-PUMP OPTION
BTU from 7,000  to 12,500
BACKUP-HEATING OPTION
SUPER-HEATING OPTION
++ ENERGY SAVING
UKT BABY
ALL-IN-ONE
DUCTABLE HVAC
The UKT BABY Ductable delivers high-performance climate control without an external unit, packed into an ultra-compact chassis designed to blend seamlessly into furniture, cabinetry, or custom furnishings.

Engineered for tight spaces, this innovative ductable AC became a primary subject of study for its highly effective application in elevator ventilation and climate control.

It is the ultimate hidden solution for specialized architectural projects.
The UKT VERTICAL DUCTABLE is an all-in-one indoor HVAC system for hotel & heritage renovations. Features UKT concentric ducting and optional hydronic heating.
COOLING Up to 75 m2
WATT From 2.8 kW to 3,6 kW
BTU From 9,500  to 12,500
HYDRONIC OPTION HH - HWS
Calories From 3,0 to 6,2 kCal HH
BTU from 12,000  to 21,000 HH
HEAVY-DUTY BLOWERS
++++ ENERGY SAVING
UKT VERTICAL
ALL-IN-ONE
DUCTABLE HVAC +
HYDRONIC HH - HWS
The UKT VERTICAL DUCTABLE HVAC is an all-in-one indoor system engineered for high-performance climate control without an external condenser.

Built with a durable galvanized cabinet and proprietary concentric ducting, it is the ideal room-by-room solution for luxury hotels, commercial spaces, and historical renovations requiring zero exterior modifications.

For maximum versatility, the system can also be provided with an integrated Hydronic Heating (H.H.) water circuit to meet demanding project specifications.
The LEGEND : UKT MILLENNIUM In the context of HVAC engineering history, the UKT Millennium is considered a legendary milestone because it was one of the first highly successful monoblock systems to prove that high-performance, ductable cooling could exist entirely without an outdoor unit.
COOLING Up to 65 m2
WATT From 2.8 kW to 3,6 kW
BTU from 9,500  to 12,500
HEAT-PUMP OPTION
BTU from 10,000 to 14,000
SUPER-HEATING OPTION
++ ENERGY SAVING
MILLENNIUM HEAVY DUTY
PACKAGED DUCTABLE
HVAC
Introduced around the year 2000, the UKT Millennium is a legendary milestone in HVAC history.

It was one of the first successful monoblock systems to deliver high-performance, ductable cooling completely without an outdoor unit.

Among with its predecessor UKT-Duetto the Millennium Series is Celebrated as an engineering benchmark for extreme climate control miniaturization,

It became a case study in academic and professional circles—setting the standard for all modern UKT innovations.
The Nautilus HVAC series from UKT Air Conditioners features self-contained, water-cooled units designed for yachts and maritime environment - Nautilus utilizes a stainless steel chassis, durable ductable construction, and self-variable ceramic heating elements to provide reliable, quiet operation at sea.
BTU From 9,500 to 15,000
HEATING OPTION
BTU from 7,000  to 12,500
HEAVY-DUTY BLOWER
UKT NAUTILUS
ALL-IN-ONE
DUCTABLE
SINGLE OR DUAL INVERTER
MARINE HVAC
The Nautilus HVAC Series from UKT Air Conditioners features self-contained, water-cooled units engineered for yachts and demanding maritime settings.

Built with a rugged stainless steel chassis and durable ductable housing.

The Nautilus utilizes self-variable ceramic heating elements to provide reliable, whisper-quiet operation at sea-
BEYOND marine applications.
The high-performance Nautilus series is an exceptional, sustainable solution also for residential projects that can leverage renewable freshwater sources, such as lakes, rivers, or open-loop wells.
The UKT INVISIBLE HVAC is a no-rooftop air conditioner for RVs and trailers. Features a splashproof, corrosion-resistant design for under-deck installation.
WATT From 2,8 kW to 4,5 kW
BTU From 9,500 to 15,500
BACKUP-HEATING OPTION
HEAVY-DUTY BLOWERS
+++ SOLAR  OPTION
UKT INVISIBLE
ALL-IN-ONE
DUCTABLE
SINGLE OR VARIABLE SPEED
FOR TRAILERS AND RV
AIR CONDITIONER
The UKT INVISIBLE HVAC is a high-performance, no-rooftop air conditioner designed to keep the profile of recreational vehicles and trailers completely clean.

Featuring a robust, corrosion-resistant, and splashproof enclosure, this ruggedized unit is perfectly suited for demanding road environments .

Utilizing proprietary technology US Pstent no. 12403745 B2 the UKT-Invisible Model is engineered for maximum layout flexibility, it can be easily integrated into both under-deck and above-deck installations.
UKT’s WILDWIND HVAC series is a specialized monoblock air conditioning unit, designed without an external unit and featuring a capacity ranging from 18,000 to 24,000 BTU. The system utilizes UKT’s patented concentric ducting, making it ideal for environments requiring high security standards, areas subject to extreme temperatures, or spaces with structural constraints.
COOLING Up to 100 m2
WATT From 5,3 kW  to 7,0 kW
BTU From 18,000  to 24,000
HEAVY-DUTY BLOWERS
+++ ENERGY SAVING
UKT WILDWIND
ALL-IN-ONE HVAC
LARGE SPACES
The UKT WILDWIND HVAC Series is a specialized, high-capacity (18,000 to 24,000 BTU) monoblock system designed entirely without an external unit.

Featuring patented concentric ducting, it is engineered for extreme temperatures, tight structural constraints, and high-security standards.

Originally developed to prevent theft and vandalism in Sub-Saharan telecommunications containers by keeping all components indoors.

The rugged WILDWIND model is now an ideal climate solution for large commercial spaces, retail stores, and reception halls.
SPECIAL PROJECTS
UKT also provides specialized engineering solutions to clients worldwide, often collaborating directly with governments and rapid-response agencies in regions with extreme climates.

UKT boasts a long tradition in special projects, given its "Engineering-First" nature, a philosophy deeply rooted in its very structure.


Within elite circles, UKT earned the reputation of being the "Mission Impossible AC Guys" a definition that, even today, could not be more fitting, given the groundbreaking inventions, projects and products the Company has developed since 1998.

Real Solutions Needs
Real AC !

Your Journey With UKT Starts Here

UKT Air Conditioners
is qualified to compete for federal government awards as a Federal Contractor in the U.S.A.

The image shows real example situation, NO photo-stock NO artificially generated.

HOW Double-Flow Technology Works ?
UKT DOUBLE FLOW
TECHNOLOGY
UKT Packaged and Monoblock Air Conditioners
UKT Packaged and Monoblock Air Conditioners
HOME-OWNERS:
Most Popular Choices of the Year 2026
The UKT Baby Type HVAC is a compact, All-in-One, indoor-mounted air conditioner and heat pump that operates without an external condenser unit. Utilizing patented single-hole technology, it provides efficient cooling, heating, and ventilation
Starting From
Euro 1,680
Contact UKT for
MONTHLY  OFFERS
UKT provides the world’s most extensive selection of HVAC solutions, designed for those seeking for air conditioning without an outdoor unit, preserving the beauty and integrity of historic and modern buildings since 1998
The UKT Vertical HVAC is a compact, full metal design, high-end , packaged air conditioner designed for interior installation which operated without the need for an outdoor unit, ideal for residential and commercial renovations. Utilizing proprietary
Starting From
Euro 2,300
Contact UKT for
MONTHLY  OFFERS
BUILDERS TOP SPECIFIED:
  Ducted AC Solutions
  NET ZERO
  Free-Colling and Fresh Air
  Meet the building Code
UKT ATTIC-COMPACT HVAC Ductable Air Conditioner Without Outdoor Unit - The Model ATTIC is a Ductable Self-Contained Air Conditioning Unit Which Can Be Ducted to provide Cooling; Heat-Pump Heating; Dehumidification to the indoors.
NET-ZERO CAPABILITIES
Starting From
US $    3,150
Contact UKT  for
MONTHLY  OFFERS
The UKT Attic Ductable Packaged HVAC 26000 is a high-capacity, all-in-one indoor unit designed for heating, cooling, and dehumidification without requiring a traditional external condenser. Engineered for installations where exterior modifications are restricted, this unit is concealed within attics or ceilings and features dual-circuit technology, high static pressure blowers, and flexible air configuration options
NET-ZERO CAPABILITIES
Starting From
US $    6,790
Contact UKT  for
MONTHLY  OFFERS
The UKT VERTICAL DUCTABLE HVAC is an all-in-one indoor system engineered for high-performance climate control without an external condenser. Built with a durable galvanized cabinet and proprietary concentric ducting, it is the ideal room-by-room solution for luxury hotels, commercial spaces, and historical renovations requiring zero exterior modifications. For maximum versatility, the system can also be integrated with an optional Hydronic Heating (H.H.) module to meet demanding project specifications.
Starting From
US $    2,880
Contact UKT  for
MONTHLY  OFFERS
The Company
What Do We Do ?

UKT provides the world’s most extensive selection of All-in-One HVAC solutions, designed for those seeking for air conditioning without an outdoor unit, preserving the beauty and integrity of historic and modern buildings since 1998.

Operations

Qualified to compete for federal government awards as a Federal Contractor in the U.S.A. , UKT serves Government, commercial, residential, and Rapid-Response sectors worldwide with specialized Air Conditioning solutions without the need for an outdoor unit

Commitment

Committed to sustainable production, UKT provides HVAC solutions that meet Buy American Act BAA and Build America Act BABA.

Core Technology
UKT’s core business revolves around a proprietary technology, designed to eliminate external condenser units, instead of routing refrigerant lines to an outdoor split system.
UKT Air Conditioners specializes in the design and manufacturing of packaged Air Conditioning Without an Outdoor Unit in Residential Settings, Preserving the image and the integrity of Historic Buildings.


Monoblock

Air Conditioners

Leading the Transformation

 


WHY Choose UKT ?
Are you looking for Air Conditioning but you cannot install any outdoor Unit ?
UKT Air Conditioners provides the world’s most extensive selection of All-in-One HVAC solutions :
From private needs to large-scale residential, commercial, and corporate spaces extending to institutional environments and the defense sector.

UKT’s exclusive product range combines specific cooling requirements with sustainable engineering, while respecting the environment.
Built for Sustainability:
UKT Manufacturing prioritize Metals over Plastics.
Metals offer 100% recyclability, well defined material compositions and a significantly lower carbon footprint during processing and recycling compared to the chemically complex, endless plastics combinations.
Minimalist, Durable, Effective, Design:
UKT strips away unnecessary clutters to focus on true reliable engineering, maximizing equipment longevity and simplifyng routine maintenance.
Market-Leading, Efficiency
UKT systems outperform competing ductless and ductable units on the market, offering superior reliability, running costs savings and long lifespan
Residential & Commercial
Horizontal, vertical, ductless, and ductable AC units.
Specialized Solutions
Heavy-Duty Climate Control for Rail Transportation, Recreational Vehicles (RVs), Shelters or Emergency Mobile Solutions.
Marine Applications
High-end, water-cooled air conditioners explicitly engineered for boats and yachts, or wherever you get a free and renewable water source.
UKT Air Conditioners specializes in the design and manufacturing of packaged Air Conditioning Without an Outdoor Unit in Residential Settings, Preserving the image and the integrity of Historic Buildings.

 

 

Air Conditioners

 

Real World

Real Operating Scenario

 

 

TRUE Manufacturing & Originality
Unlike other products, which merely rebrand while remaining unmistakably identical, featuring similar imagery and the same artificially generated setups,
UKT Engineers build proprietary systems from scratch that possess their own unique character, showcasing examples drawn from REAL-WORLD scenarios and operating across multiple sectors.
PHOTO
GALLERY
NEWS
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ALL-IN-ONE UKT AIR CONDITIONERS
UKT Self Contained Air Conditioners for Residential, Commercial, Mobile Solutions
UKT AIR CONDITIONERS