Aviation Hydronic Technologies

REHAU Delivers a Full Range of Cost Saving Hydronic Systems for All Aviation Applications

REHAU Solutions for Aviation offers complete hydronic systems for everything you need to deliver high-performance, cost-saving HVAC technologies to critical airport facilities.

From landside terminals, parking lots and passenger transportation to airside hangars, aprons and runways. Our integrated aviation product and service package features:

  • RADIANT HEATING AND COOLING systems that reduce energy consumption by up to 35% from conventional air-based systems and can achieve an ROI in less than five years.
  • GEOTHERMAL GROUND LOOP HEAT EXCHANGE PEXa double U-bend  technology that extracts more energy than conventional (HDPE) systems while reducing drilling costs.
  • SNOW AND ICE MELTING systems that create safe pedestrian and work zones at half the price of electric systems.
  • PRE-INSULATED PEXa PIPING that delivers maximum heat energy from central heat plants to hydronic applications.

Find Hidden Value with REHAU Global Experience, Engineering Excellence

REHAU’s advanced polymer solutions have served the automotive, building and aerospace industries worldwide for more than 60 years. Today REHAU hydronic technologies are deployed in more than 50 airports around the globe, from the new Terminal 3 at Stuttgart Airport in Germany to a mega-sized maintenance hangar at Istanbul Ataturk Airport in Turkey to multiple heating, cooling and ice melt systems at the High Altitude Aviation Training Site in Colorado.

More Reference Projects

Count on REHAU Solutions for world-class aviation credentials, engineering and design support, project flexibility and job-site training you need to succeed AND find value where others said it wasn’t possible – no matter how large, how complex or how tight your project parameters. 

Start a conversation today with a project engineer from REHAU.

Hydronic Radiant Heating and Cooling

REHAU radiant graphic

Boost Performance and Hit ROI Targets in Under Five Years with REHAU Radiant Heating and Cooling

It’s a basic principle in mechanical engineering: Water carries more heat energy than air – 3,500 times more heat energy in fact. 

Hydronic radiant heating and cooling systems from REHAU capitalize on this advantage and have reduced energy costs by up to 35 percent for facility owners and operators.

Based on our global experience at more than 50 airports, along with source-to-application REHAU hydronic technologies, these savings translate into a return on investment (ROI) of under five years for new commercial buildings, including terminals and hangars.

But hold onto your mechanical pencils. There are several other advantages you should consider when specifying hydronic radiant heating and cooling systems from REHAU:

Comfortable Heat Where It’s Needed Most

Heat from conventional air-based systems in terminals with vaulted or high ceilings stratifies well above the passengers and employees below. Radiant concentrates heat energy at ground level where it’s needed most while minimizing heat losses and downsizing the load on air-handling systems.

Various studies also show that passengers are more comfortable and employees more productive in radiant-heated spaces, which maintain evenly distributed temperatures at a lower set point than forced air.

Design Freedom for Visionaries

Since radiant heating and cooling is delivered via pipes in floors, walls and ceilings, there are no heaters, radiators or additional vents. Thus, architects can design airport spaces that are both aesthetically appealing and comfortable. A great example is the “flying dove” design of the Bilbao Airport in Spain, which combined REHAU hydronic heating and cooling systems without compromising the modern architecture. 

Benefits Multiply for Hangar Operations

In-slab radiant heat doesn’t dissipate as fast as overhead systems when massive service doors are opened for aircraft maintenance. Energy savings can range from 40 to 55 percent over forced-air unit heaters based on an independent hangar study. Heated slabs also dry out faster as aircraft shed snow and ice, better protecting workers from falls.

Bottom line for your project pro forma? 

Hydronic radiant heating and cooling systems from REHAU will create life-cycle cash flow savings that distinguish A/E design teams from the competition, hold the line on operating budgets for facility managers, and improve cap rates for owners. Complete the picture with REHAU Ground Loop Heat ExchangeSnow & Ice Melting and Pre-Insulated PEXa piping for even greater efficiencies.

Heard enough to want to hear more?

Why not contact a REHAU team member today?


REHAU Geo-exchange graphic

Optimize Radiant Heating and Cooling With RAUGEOTM Geothermal Systems from REHAU 

Based on 40 years of pioneering expertise in radiant systems, REHAU engineered a superior geothermal ground loop system we call RAUGEO™. Built with crosslinked polyethylene PEXa piping, our award-winning system extracts more energy than conventional ground loops, reduces drilling costs, and provides easy access and control from a manifold located in a mechanical room or an underground vault.

Meanwhile, REHAU hydronic radiant systems operate most efficiently at the same temperature ranges favored by water-to-water geothermal heat pumps, typically 100-120°F (38-49°C) in heating mode and 55-60°F (13-16°C) in cooling mode.

By integrating RAUGEO ground loop, and REHAU radiant heating and cooling systems, energy consumption for any airport facility can be cut by up to half!

Here’s more on the RAUGEO difference:

Pressure Tested to Last 35+ Years

While standard HDPE geothermal piping will get the job done under ideal conditions, the exceptional durability of RAUGEO PEXa will withstand handling and conditions on the most challenging jobsites. Once securely connected with F2080 cold-expansion compression-sleeve fittings, RAUGEO PEXa is rated for 35-plus years of continuous pressure. Also, once installed, our closed-loop geothermal systems are practically maintenance free.

30% Less Borehole Footage

The RAUGEO innovative double U-bend vertical ground loop design means that up to 30 percent less borehole footage will be needed for the loop field. Even if unexpected geological conditions make one borehole shorter than the rest, our design ensures optimal system performance.

Accessible Controls, Easy Trouble Shooting

The PRO-BALANCE® manifold, which consists of supply and return header pipes, is usually housed in a mechanical room or vault for easy access. Failed loops can be easily identified and bypassed for continued operation, unlike typical reverse-return header systems that often must be completely shut down to pinpoint problems.

Reduce Greenhouse Gases AND Save Energy

By harnessing energy that is locked below the earth’s surface rather than burning fossil fuels (natural gas, oil or propane), geothermal heating and cooling release a fraction of the greenhouse gas emissions into the atmosphere (example project: Minnie Howard School) compared to conventional systems. Green-conscious project leaders can achieve net-zero energy targets and qualify for state and federal tax credits by turning the vast property around aviation facilities into an energy source.

Let's Add It All Up

Significant energy savings  +  end-to-end hydronic solutions  +  durability and worry-free maintenance  +  green technology  =  REHAU Solutions for Aviation.

Start a conversation now with a member of our aviation team

Snow and Ice Melting

REHAU SIM graphic

Improve Safety, Reduce Liability and Save Money with Snow and Ice Melting Systems from REHAU

There was a time when snow and ice melting systems were both basic and expensive: Snow is forecast, flip the “on switch,” and let it run continuously at full power regardless of the actual weather conditions. REHAU changed that paradigm with weather-smart hydronic snow and ice melting (SIM) systems designed exclusively for critical aviation landside and airside surfaces. 

Weather-Smart Controls Are Fully Automatic, Insuring Peak Energy Efficiency

The controls system integrates continuous data from national weather services with outdoor moisture sensors. When snow and ice are predicted, the system will efficiently ramp up surface temperatures for melting. Sensors then ensure optimal energy use to maintain precise temperatures for continued melting. Once the surface is dry, the system automatically shuts off.

Protect the Environment, Protect Operating Budgets

  • A well-designed SIM system offers the following advantages:  a) No plowing;  b) No salting;  c) Fewer worries.
  • No damage to surfaces caused by equipment and chemicals, or wear and tear from salt and water tracked into terminals or other facilities.
  • Workers move more safely and efficiently along heavily-trafficked aprons.
  • Hangar door areas are cleared and open smoothly on dry tracks.
  • The risk of litigation from passenger slip and falls is minimized, liability mitigated.
  • Less environmental risk from salt and chemical runoff into ground water.

Exceptional Support and Proven Reliability

We have successfully designed, supplied and guided hydronic projects at more than 50 airports worldwide.  It’s a track record of performance and reliability that will satisfy the most discerning project managers. One better, we’ll help you plug the engineering into your buildout plan for a REHAU SIM system with long-lasting REHAU PEXa pipes so you can analyze the results for yourself. 

Click here to get started

Pre-insulated PEX Piping

REHAU Pre-insulated PEXa piping graphic

Move Energy Between Plant and Facilities with Maximum Efficiency

Airport planners are increasingly turning to energy-efficient, environmentally friendly hydronic technologies for heating, cooling or deicing. But moving heated or chilled fluid efficiently from a remote source to the application site has always been an engineering challenge.

Problem solved with INSULPEX®, the pre-insulated PEXa piping from REHAU, a world leader in PEXa piping solutions for more than 40 years.

INSULPEX consists of flexible RAUPEX O2 Barrier PEXa pipe surrounded by a solid layer of polyurethane foam insulation and a durable corrugated PE outer jacket. This combination provides a sturdy, yet flexible pipe with enhanced temperature and pressure capabilities while also offering continuous runs for minimal energy loss. And that adds up to increased efficiency at the mechanical room and cost savings to stakeholders. 

But there’s more...

5 Ways INSULPEX Saves You Time and Money During Installation

1. The pipe’s flexibility allows it to bend around obstacles, or be directionally bored, making it much easier and less costly to install than alternative rigid piping systems.

2. Accessories like anchors, kickers and thrust blocks are not required because of the self-compensating properties of ribbed pipe and durable, underground fittings.

3. Continuous coils and the availability of our ingenious two-pipe configuration (supply and return combined) further streamline the installation process.

4. UV resistant polyethylene casing provides protection during installation and shields water infiltration.

5. Pipe, insulation and water-proofing are all in one product for faster installation and reduced cost.

It's Not Just Pipe... It's a System with 360o Customer Support

Pipe is pipe, you might say, but not at REHAU. We offer advanced design and hands-on installation support for all our hydronic technologies, including Pre-insulated Energy Transfer Pipe,  Radiant Heating and CoolingGeothermal Ground Loop Heat Exchange and Snow & Ice Melting. And be assured, members of our Team are always ready to go “wheels up” and visit your jobsite to provide expert guidance during installation.

So, now that we’ve answered a few of your questions, here’s one for you: When do we start? 

Contact Us    Submit a Design Request


With more than 50 international airport construction reference projects spanning 14 countries, REHAU is a global leader in integrated building systems for modern aviation facilities.

High Altitude Aviation Training Site - Gypsum, CO

This LEED® silver military pilot training facility with a 50-ft (15.24 m) tall hangar features REHAU Radiant Heating and Cooling and Snow and Ice Melting (SIM) systems. Indoor and outdoor temperature sensors are placed throughout. Pre-insulated PEX pipe runs the underground mains from the mechanical room to the radiant systems and fan coils, as well as out to the SIM system.

The radiant system's crosslinked polyethylene (PEXa) piping rests on a steel grid within a 9 in (23 cm) concrete slab. The extra-thick slab required to support heavy aviation equipment creates an efficient thermal mass, retaining much of the heat close to the floor for worker comfort and operational savings.

Download the PDF

FedEx Air Hangar – Anchorage, AK

Opening an airplane hangar door in Alaska's frigid climate can result in a drop of 60º or 70ºF (33º or 39ºC) in minutes. To ensure the comfort and safety of employees and to keep machinery running smoothly, FedEx chose a radiant/forced-air combination heating system for its 72,800 ft2 (6,763 m2) airplane hangar in Anchorage.

The REHAU radiant system acts as the primary source of heat, circulating a heated water/glycol mixture through 43,000 ft (13,106 m) of 1 in. RAUPEX O2 Barrier crosslinked polyethylene (PEXa) pipe resting on steel within the concrete slab. When the system is engaged, the floor acts as a thermal mass, retaining much of the heat even when the hangar doors are opened, minimizing need for the forced-air system, which keeps energy costs low.  

Download the PDF

REHAU Airport Construction Bilbao Airport

Bilbao Airport – Spain

As an architect and structural engineer, Santiago Calatrava is no stranger to developing spectacular buildings. Many of his structures look like sculptures and are reminiscent of leaves or wings. From the outside, Bilbao Airport looks like a white bird.

A REHAU Radiant Heating and Cooling System was installed to provide air conditioning for the terminal, and because the PEXa pipes are embedded in the concrete floor slabs, Calatrava had greater freedom in designing the modern structure.  In addition, the pipes are maintenance-free and help keep operating costs low thanks to effective heat distribution and low supply temperatures.

Read More

REHAU Airport Construction Istanbul airport

Ataturk Airport - Istanbul, Turkey 

Istanbul Ataturk Airport is one of the busiest airports in the world. It is equipped with all the latest technology and automation to ensure that its passengers travel safely and in comfort.

The new hangar, at 25,000 m² four times bigger than its predecessor, was completed in January 2011. REHAU radiant heating was chosen. The hangar provides space for 16 narrow-bodied aircraft or four wide-bodied aircraft plus up to 8 narrow-bodied aircraft.

REHAU Airport Construction Stuttgart

Stuttgart Airport - Germany

The new Terminal 3 at Stuttgart Airport was built between 2000 and 2004. The capacity of the terminal is 4 million passengers per year. REHAU's  were chosen to control temperatures inside the building.

A total of 100,000 m of PEXa pipes laid over an area of 16,000 m² provides state-of-the-art temperature regulation – technical and architectural perfection.

REHAU Airport Construction Kiev

Kiev-Boryspil Airport - Ukraine

The Kiev-Boryspil Airport is to become Eastern Europe’s most modern airport. For the Terminal B upgrade in 2006, the airport company opted for a REHAU Radiant Heating and Cooling System. 

A positive experience with REHAU led to an additional installation of a radiant heating and cooling system in the new Terminal D.