stainless-steel flue gas systems and lightweight chimneys ... · society is becoming increasingly...

Raab is certified according to DIN EN ISO 9001

If you want flexibility, plan with Raab Flue Gas Systems.

Stainless-Steel Flue Gas Systems and Lightweight Chimneys for Industry, Craft and Housing Construction.

Product Overview 6 DW-Alkon 8 DW 10 EW-ALKON 12 EW 14 LB Universal 16 LB Shaft L90 18 Cowl Casings 20 Products for Draught Stabilizing 22 Large Plants, Special Designs 24

Contents

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Raab-Group

Since 1997, the Joseph Raab GmbH & Cie. KG and the Kutzner + Weber GmbH have been part of the Raab Group which originated in Neuwied on the Rhine in 1898. As a manufacturer of high-quality flue gas systems and flue gas components that are also used for other purposes, the brands Raab and Kutzner + Weber offer innovative system solutions for flue gas and ventilation technology. The range of services includes qualified advise and support for planning on-site, free planning software for dimensioning as well as libraries for 2D and 3D planning and designing systems in cooperation with certified partner companies.

Kutzner + Weber

Kutzner + Weber develops, produces and sells components of flue gas technology that help to reduce polluting emissions like CO2, dust, fine dust and noise as well as energy losses.

The thermally controlled “Diemayer damper“ for gas fireplaces prevents warm air from escaping from the room. Secondary-air appliances work without additional energy to ensure a consistent pressure in the flue gas path and increase the efficiency of heat generators. Chimney fans are used if low chimney draught causes incomplete combustion. Kutzner + Weber has developed a sensor-controlled stove regulator and a particle separator to reduce fine dust emission in manually-charged solid fuel fireplaces. In order to counter the increasing noise problems, flue gas silencers are produced both serially and custom-made. Furthermore, a sound metering app is available that allows to conduct approximate sound surveys fast and easily as a guideline.

Raab

The core business of Raab is the production and development of high-quality chimney and flue gas systems made of stainless steel. Raab products allow you to realize almost all installation situations in new and old buildings. One example for this is the ALKON series as double-walled or single-walled stainless-steel flue gas systems or chimneys for inside or outside installation. The metallic-tight sealing principle of the element connections allows for a max. operation temperature of 600 °C and a positive-pressure of max. 5000 Pa. Due to these characteristics, it is possible to connect fireplaces for gas, oil and solid fuels as well as stationary CI engines and heat pumps. They ensure a high flexibility for future retrofitting of other heat generators and energy sources. In addition to serial production, we have been designing major projects in Europe for many years, in cooperation with special partner companies.

Our company‘s history reaches back more than 100 years and has brought many ground-breaking innovations. Our products for flue gas and exhaust air technology are part of a market that now more than ever is very important for the future. Society is becoming increasingly aware of environmental issues and the importance of saving energy.

Climate change, scarce resources, political demands and regulations and higher comfort standards keep

posing new challenges for product development.

We have our own research facility where our engineers constantly work on developing, redesigning and

improving our products. Theory and practice merge here to create new and innovative solutions for the

product series and the future. The Raab Group, with its strong brands Raab and Kutzner + Weber, offers

technologically advanced product solutions that are exemplary in terms of quality and value for money.

The symbiosis of both brands allows us to provide technology for flue gas systems that offers top safety

and energy efficiency and contributes considerably to reducing emissions of heating appliances.

We are innovative out of conviction and work closely with leading partners of science and research.

As system partners we also offer international implementations of ready-for-use large-scale projects with

industrially produced serial products and special designs from one source that are exclusively made in

Germany. Benefit from our expertise and years of experience as leaders in know-how and quality for flue

gas technology.

The overview gives you an insight into our extensive product range.

Raab has your chimneys!

Advance through Competence.

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Warmth is a Necessity.

One of the many advantages of a stainless-steel flue gas system is their versatility. Due to their low weight, flexible installation and appealing surface there are no technical or aesthetic limits when choosing a special installation location. The success story of stainless-steel flue gas systems reaches from perfect solutions for restoring old chimneys to individual designs for independent and complex systems. Choosing the optimum system depends on the operation, the type of fireplace and last but not least your personal ideas. Wherever there is smoke we evacuate it safely!

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Chimneys are increasingly becoming architectural features in modern or loft-like living spaces. Pictured: Example of a special solution after authorization.

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Stainless Steel System. The high-quality processing of stainless steel is our core competence and at

the same time forms the base for many more products in all aspects of flue gas evacuation. The material

itself is perfect for this purpose: durable, robust and resistant. It can be processed flexibly and even

looks brilliant. Therefore it’s not surprising that these flue gas systems are very popular and are used

regularly in residential buildings. There is a distinction between single and double-walled systems. The

single-walled pipes are mainly used for retrofitting existing chimneys, while the double-walled systems

are approved for free installation inside and outside of buildings.

Product Overview.

Double-Walled Systems �

Double-Walled Stainless-Steel System

DW-Alkon (page 8)

This is the all-rounder that is used as a complete solution inside and outside.

Range of Use: Standard fireplaces e.g. boilers, stoves, gas appliances, open

firesides, tiled stoves, pellet furnaces etc., low-temperature systems, calorific-value

systems, block-heating systems, emergency generators / motor units, baking ovens,

positive and negative-pressure operation, installation inside and outside.

Connection Method: Patented conical plug connection, pressure-tight up to 5.000 Pa and heat resistant up to 600 °C through

metallic surface seal

Single-Walled Stainless Steel System

EW-Alkon (page 12)

The all-rounder for the restoration of existing chimney systems.

.Range of Use: Standard fireplaces e.g. boilers, stoves, gas appliances, open

firesides, tiled stoves, pellet furnaces etc., low-temperature systems, calorific-value

systems, block-heating systems, emergency generators / motor units, baking ovens,

positive and negative-pressure operation, reducing the cross-section of existing

systems

Connection Method: Patented conical plug connection, pressure-tight up to 5.000 Pa and heat resistant up to 600 °C through

metallic surface seal

Double-walled systems are independent flue gas systems.

Single-walled systems are usually used for restoration. This is often necessary when modernizing the heating system.

Double-WalledDW (page 10)

The classic for complete solutions inside and outside.

Range of Use: Standard fireplaces, e.g. boilers, stoves, gas appliances, open firesides, tiled stoves, pellet furnaces etc., low-temperature systems, humid and dry operation, positive /

negative pressure operation up to 200 Pa, inside and outside installation.

Connection Method: Stable plug connection with outer clamp fitting, optional with lip seal for

positive pressure operation.

Single-Walled Stainless-Steel SystemEW (page 14)

The classic for modernizing existing chimney

systems.

Range of Use: Standard fireplaces, e.g. boilers, stoves, gas appliances, open

firesides, tiled stoves, pellet furnaces etc., low-temperature systems, humid and dry

operation, positive / negative pressure operation up to 200 Pa, reducing the cross-

section of existing systems

Connection Method: Stable plug connection with outer clamp fitting, optional with lip

seal for positive pressure operation.

Single-Walled Sytems��

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LB Shaft L90 (page 18)

Shaft for flue gas systems in new buildings and restorations of multi-storey houses

Range of Use: Oil, gas

Shaft Systems. Shaft systems are installed discretely in the house. In the case of restoration they

simply replace the old chimney, when new buildings are constructed they can be installed from the

start. They can be used for additional purposes as needed, such as supplying air for an operation

that is independent of ambient air or offering a second shaft for further installation pipes for building

equipment. The small dimensions and light design are static and architectural arguments for a shaft

system. In most cases they don’t require an additional base and can even be installed on many wood

beam ceilings. Shaft systems are all-rounders for universal use.

Chimney Outlets. Under this umbrella term you find cowl casings, bonnets and chimney extensions.

Cowl casings are often used to protect the building fabric from weather, but they’re also a decorative

completion for every shaft system. The various types of bonnets solve different problems, from simply

protecting against foliage, rain and nesting birds to purposefully improving the combustion behaviour

of your fireplace. The chimney extensions allow you to adjust your stainless-steel flue gas system to new

requirements. In our accessory program you’ll find a fitting solution for almost all challenges.

For a reliable diagnosis, please contact the expert you trust. (page 20)

Shafts with integrated flue gas systems

LB Universal (page16)

Shaft with flue gas system for new buildings and restoration of single and multi-family homes

Range of Use: Oil, gas, solid fuels

The flue gas system is already integrated in this shaft system. Due to dry construction and the integrated stainless-steel flue gas

system the system can immediately be finished and heated after installation.

These shaft systems are assembled with the suitable chimney system as needed. The strengths of these shafts result from

the divers applications - be it as a single-duct shaft for flue gas pipes or as a single or double-duct shaft for an air-flue-gas system for solid fuels or as an installation shaft for cables

and pipes.

Shafts for integrating flue gas systems

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Delivery form: Delivery form:

As shaft for air-flue-gas systems

As shaft for single-duct flue gas systems and installation shaft

As shaft for single-duct flue gas systems

Finished system:

The double-walled, patented Alkon-System fulfills the most demanding challenges and enables solutions for all modern heat generators.

The slender design - mostly without clamp fittings - is popular with both architects and modern clients

and allows the planner to use identical extractors for different types of heat generators. This is why the

DW Alkon is often used as an architectural feature both inside and outside.

DW-Alkon gives you a Europe-wide patented, conical connection technique with already 20 years of Raab

experience. The metallic surface seal without elastomer seal rings is free from wear and maintenance

which means that there are no follow-up costs. Between the high-quality stainless steels is a 30

mm thick biologically safe insulation that allows for a low surface temperature with compact overall

dimensions. The close proximity to flammable materials means the DW-Alkon is perfect for wooden

facades.

Due to the well-designed component system, planning and installation are easy and there even are 3D

libraries for professional CAD heating room planning available. With DW-Alkon you always have the right

flue gas system, no matter which energy sources you choose.

Advantages:

n��Operational safety: Metallic surface seal with 60 mm long cone without liable-to-wear elastomer seals.

n��Range of use: DW-Alkon is equally suitable for all modern heat generators.

n��Innovative: The cleaning port with the Design+ is unique to this day. Many patents document the Raab-Group’s standard of innovation and a secured future.

n��Performance: Condensation or high constant temperature, positive or negative pressure, Raab-Alkon can handle everything without problems.

n��Special uses: Raab-Alkon is already suitable for a solid fuel operation that is independent from ambient air and allows for pellet-calorific technology.

n��High-qualitiy materials: The best materials from notable suppliers and modern production and shaping methods for your safe home.

n��High quality: Certified system accroding to CE 0432-CPD-219938, quality management system certified according to DIN EN ISO 9001 with additional voluntary external monitoring.

n��Creative freedom: In addition to the architecturally elegant and dirt-repelent high-gloss stainless steel many other surfaces are available for a surcharge (matte, brush-finished, powder-coated or electrolytic copper-coated).

Stainless-Steel System DW-Alkon, the innovative all-rounder.

Range of Use: n��Solid fuels wood, coal, wood

pellets etc. as DW-Alkon WPG also for FU-operation in positive pressure

n��Calorific-value and low-temperature boiler for oil and gas

n��Block-heating plants, emergency generators, motor units

n�Heat pumps, fuel cells

n��Flue gas and fume pipes for baking ovens

n��Supply and exhaust air pipes, silicone-free

n��Industrial uses, process heat

n��Positive pressure up to 5.000 Pa and negative pressure

n��From condensation operation to 600 °C constant temperature

n��Installation inside and outside

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Material:n��Inner pipe:

- Stainless steel (1.4571/1.4404) - Stainless steel (1.4539 for DW-Alkon WPG) - Material thickness 0.5 mm - Ø 80–600 mm - freely expandable

n��Heat insulation 30 mm

n��Outer shell: - Stainless steel polished - Material thickness 0.5 mm, from Ø 400 0.6 mm - staticly supporting

n��Immediately ready for use

Example with components and accessories.

DW-Alkon as a design element for tiled stoves and heatings

Raab-Alkon as a flue gas and fume pipe in a large backery

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The double-walled, moisture resistant DW is the reliable classic with clamp fitting installation. The system has a so-called capillary stop that prevents moisture from leaking into the insulation of the flue gas system from the outside. The capillary stop also prevents condensate on the inside to leak into the insulation. This means your system is technologically safe and you can enjoy your durable system made by Raab for a long time.

Connecting the elements with a clamp fitting is easy, reliable and has proven to work great for many

years.

The double-walled system has a 30 mm insulation that protects the outer pipe from getting too hot.

This means the flue gas system can be installed in close proximity to the facade. Inside the building

the distance to flammable materials can also be reduced considerably. The insulation also ensures that

temperature fluctuations and weather conditions only have a small effect on the flue gas flow. The

system’s modular design fits all structural requirements and is assembled on-site by specialists.

Advantages:

n�Reliable connection technique: The elements’ joints have proven their reliability for many years.

n�Capillary stop: The system is protected from moisture both inside and outside.

n�Speed: Easily installed by an expert and ready for use right after installation.

n�Flexible: Easily adjusted to difficult conditions thanks to the construction variety.

n��Energy spectrum: Flue gas temperature up to 400 °C, negative pressure, positive pressure up to 200 Pa, dry and humid operation.

n��High-quality materials: The best materials and modern production methods ensure a reliable and durable flue gas solution.

n��High quality: Certified system according to CE 0432-CPD-219929, secured through certified production according to DIN EN ISO 9001:2000.

n��High creative freedom: In additon to the architecturally elegant design also available in various surfaces for a surcharge (polished, matte, brush-finished, varnished or copper galvanized).

Stainless-Steel System DW, the Classic.

Range of use: n��Low-temperature systems

n��Standard fireplaces (solid fuels like wood, coal, pellets etc.)

n��Modern fireplaces in private, business and industry buildings

n��Suitable for negative -pressure operation

n��For inside and outside

n��Dry operation

n�Moisture-resistant operation

n��Positive-pressure operation up to 200 Pa with seal

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Material:n��Inner pipe:

- Stainless steel (1.4571/1.4404) - Material thickness 0.5 mm - Ø 100–600 mm - freely expandable

n��Heat insulation 30 mm

n��Outer shell: - Stainless steel high-gloss - Material thickness 0.5 mm,

from Ø 400 0.6 mm - staticly supporting

n��Immediately ready for use

DW on outer facade


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The single-walled, patented Alkon-System is especially suitable for installation in the shaft and for connection pipes of all kinds. The range of use allows for solutions for all modern heat generators.

It can be used as a supply or exhaust air pipe or a flue gas pipe on the facade if heat insulation is

not an issue. EW-Alkon is the number one choice for foresightful constuctors that want solutions for

tomorrow today. Operation of stoves that is independent of ambient air, later conversion to calorific-

value technology or retrofitting flue-gas heat exchangers. With EW-Alkon you count on the Europe-wide

patented, conic connection technique with already 20 years of Raab experience. The metallic surface seal

without elastomer sear ring is free of ware and maintenance which avoids follow-up costs. Depending

on the installaion situation and use, the EW-Alkon can be installed with or without heat insulation.

Additional components of Kutzner + Weber such as powerful flue gas silencers, special draught

regulators for wood pellets, draught regulators with hydraulic dampers for large plants or draught

regulators for operation that is indepenent of ambient air and flue gas fans supplement the delivery

program and can easily be adapted to Raab EW-Alkon. Due to the well-designed modular design,

planning and installation are easy and there even are 3D libraries for professional CAD heating room

planning available.

With EW-Alkon you always have the right flue gas system, no matter which energy sources you choose.

Advantages: n��Operational safety: Metallic surface seal with 60 mm long cone without liable-to-wear elastomer seals.

n�Range of use: EW-Alkon is equally suitable for all modern heat generators

n��Innovative: The metallic-tight cleaning port is still the best on the market. Many patents document the Raab-Group’s standard of innovation and a secured future.

n��Energy spectrum: Condensation or high constant temperature, positive pressure or negative pressure, Raab-Alkon can handle everything without problems.

n��Special operations: Raab-Alkon is already suitable for solid fuel operation that is independent of ambient air and allows for pellet-calorific technology.

n��High-quality materials: The best materials from notable suppliers and modern production and shaping methods for your safe home.

n��High quality: Certified system according to CE 0432-CPD-219914, quality management system certified according to DIN EN ISO 9001 with additional voluntary external monitoring.

n��Flexibility: In addition to the extensive standard program, Raab supplies special designs based on the customer’s wishes and the construction situation.

Stainless-Steel System EW-Alkon, the restoration specialist.

Range of use: n��Solid fuels wood, coal, wood

pellets etc. As EW-Alkon WPG also for FU operation in positive pressure

n��Calorific-value and low-temperature boiler for oil and gas

n��Block-heating plants, emergency generators, motor units

n�Heat pumps, fuel cells

n��Flue gas and fume pipes for baking ovens

n��Supply and exhaust air pipes, silicone-free

n��Garbage chute

n��Industrial uses, process heat

n��Positive pressure up to 5.000 Pa and negative pressure operation

n��From condensation operation to 600 °C constant temperature

n��Best installed inside

EW-Alkon for flue gas and combustion air in alow-energy house

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EW-Alkon connection pipe for process heat in aviation industry

Material:n��Stainless steel (1.4571/1.4404)

n��Stainless steel (1.4539 for EW-Alkon WPG)

n�Material thickness: 0.6 & 1.0 mm

n�Inner diameter: 80–600 mm

n�TIG/laser butt joint welded

n�Used with or without heat insulation

n�Immediately ready for use


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The single-walled, moisture-resistant EW is the reliable classic for modernizing existing chimney systems.

Installing the elements with the trusted bush-plug connection is easy, reliable and has proven its worth in

practise for many years. In the case of unforeseen situations on-site, the system can easily be shortened

without affecting the functionality of the bush-plug connection. EW can be built up from the chimney

base to the collar or lowered “piece by piece” from the roof.

The system can handle all challenges thanks to the variety of standard components and is assembled

on-site by specialists.

Advantages:

n��Flexible connection method: Functional and shortable on-site. Easily adjustable to difficult conditions due to component variety.

n��Energy spectrum: Flue gas temperatures up to 400 °C, negative and positive pressure operation up to 200 Pa with seal.

n� Delivery forms: Standard round cross-section, also available in oval design for small spaces.

n� High-quality materials: In addition to state-of-the-art production methods they are the main reason for the durabitlity of the system.

n��High quality: Certified system according to CE 0432-CPD-219930, secured through certified production according to DIN EN ISO 9001:2000.

Stainless Steel System EW, the Modernization Classic.

Range of use: n��Low-temperature systems

n��Standard fireplaces (solid fuels like wood, coal, pellets, etc.)

n�� Modern fireplaces in private, business and industry buildings

n��Suitable for negative pressure operation

n��For restoration or reducing the cross-section of existing systems

n��With or without heat insulation

n��Moisture-resistant operation

n��Dry operation

n��Positive pressure operation up to 200 Pa with seal

n��New and old builings

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EW, the classic for modernizing existing chimney systems.

Material:n��Stainless steel (1.4571/1.4404)

n�Material thickness: 0.6 & 1.0 mm


n�TIG/laser butt joint welded

n�Immediately ready for use


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The LB Universal is a light system for constructing chimneys in new buildings or for restoration. In connection with the stainless-steel flue gas sysetem EW, this shaft system is the perfect solution.

It fulfills all requirements of heat and fire protection and is also suitable for multi-storey buildings. Bushings are

no problem with the LB Universal. Because of the low weight and the small dimensions it even meets the strict

requirements of monument preservation which usually doesn’t allow for a new foundation. With the LB Universal you

can most of the time do without a foundation. The small dimensions of the chimney with its only 4 cm thick outer

shell allow for a flexible planning and make the decision for connecting a new fireplace much easier, e.g. if you want

a tiled stove or an open fireplace.

The installation is very easy thanks to dry construction. The LB Universal can be finished and heated right after

installation.

Advantages:

n�Practice-oriented basic packages.

n��For low-energy or passive houses: Fulfills all requirements.

n�Light: Usually no static measures, e.g. foundations, are needed.

n��Optimum�fire�protection:�Safety through a fire resistance of 90 minutes.

n��High quality: Through the use of the best materials.

n��Fast installation: So easily to install that the flue gas system can often already be heated on the day of the final assembly.

n��Complete solution from one source: Compatible to flue gas systems and accessories by Raab which allows you to plan safely.

LB UniversalLightening the Chimney.

Range of use: n��Complete solution for use in

buildings

n�For all standard fireplaces

n��For restoration or new construction

n��For additional fireplaces, e.g. tiled stoves

n��For single or multi-family buildings

n��Also suitable for muti-storey buildings

n�For inside use

n��Inclined run up to 30°

Examplary use with stove

The LB Universal as problem solution in a horizontal connection

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Basic Package 1: Basic Package 2:

1x stilt with drain and inspection door

1x shaft, front panel loose with furnace port 90°

1x stilt with condensate dish, drain and inspection door

2x shaft, 1200 mm stainless-steel inner pipe with insulation

1x shaft, front panel loose with furnace port 90°



Precious core behind a light shell:

The LB Universal always stands where you need it.

Edler Kern hinter der leichten Schale:Der LB Universal steht immer dort, wo Sie ihn benötigen.

6_40Gesamtbroschuere_RZ.qxp 21.02.2007 9:22 Uhr Seite 17

Material:n��Material outer shell: Fiber silicate fire safety

panel

n��Flue gas system: Inner pipe, Raab-EW, stainless steel (1.4571/1.4404)

n�Material thickness: 0.6 mm


n��Fire safety (90 minutes fire resistance)

n��Thermal resistance (m2 K/W) = 0.676

n��Quality controlled and certified according to CE 0432 CPD 219916


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In multi-storey buildings this shaft system is suitable for flue gas systems (oil/gas) for restoration or new buildings.

It follows the fire regulations for multi-storey buildings.

This shaft system saves living space because of its small dimensions and can be insalled fast and

efficiently due to dry construction. It can be heated right after construction. It is also possible to

immediately use plaster or wallpaper on the surface.

The whole system is tailored to your needs in the factory and can be ordered with pre-installed cleaning

and connection ports which allows for a quick on-site installation. For various special cases the LB Shaft

L90 offers flexibility with its accessories, such as consoles.

Advantages: n��Connection system: Rebated joint

n�Efficient heat and fire protection

n�Space saving

n�System: tailored in factory, delivered packaged

n�Elements with cleaning port and connection sleeve available

n�Special designs possible, square cross-section on request

LB Shaft L90 for Flue Gas Pipes.

Range of use: n��Shaft for flue gas pipes

n��Multi-storey buildings

n��New buildings and restoration

n��For inside use

n��Inclined run up to 30° possible (45° for positive pressure)

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Only Installation shaft for building

equipment for flue gas system

Flue gas and seperate supply air shaft. For solid fuel stoves indepenent of ambient air

Flue gas, supply air and seperate installation shaft. For solid fuel stoves indepenent of ambient air and building equipment

Only flue gas with EW-Alkon and seal

Flue gas and supply air for solid fuel stoves indepenent of ambient air

(with DW-Alkon)

Material:n��Material: Fiber silicate fire safety panel

n��Wall thickness: 40 mm

n��Isolated like 24 cm wall

n��Fire resistance for 90 minutes

n��Thermal resistance (m2 K/W)=0.22

n��Outer dimensions: 200–450 mm

n��Inner dimensions: 120–370 mm

n��Bigger dimensions on request

n��Component lengths in 600 mm + 1200 mm

n��Cowl can be designed individually

n��High quality: Quality controlled

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Gewünschte Grafik fehlt uns noch!

As market leader for flue gas systems we’ve been setting trends and defining standards for years. We always offer you the perfect solution for new systems, reconstruction and many more things with our accessory program.

The cowl casing is a professional possibility to increase your cowl’s durability for years, which means

expensive restorations aren’t necessary. Thanks to the easy installation with dry construction your

chimney can be protected against weather and sooting for a long time without difficulty. The chimney is

cleaned, newly jointed and covered with the individually designed cowl. The structure panels of the cowl

rest on props that are adjusted to your chimney, an additional insulation can be added in the clear space.

A stainless-steel cover with water drain closes the casing and drains condensate and rain. This way the

construction protects from humidity and your chimney is once again intact for many carefree years.

The cowl clearly affects the appearance of your house, which is why you can choose from many surface

variations. Our products range from natural structures like slate and clinker to timeless modern casings

of stainless steel and titanium zinc. With cowl casings by Raab you choose a product that meets a high

quality standard and confirms our market position. With state-of-the-art production methods and regular

quality controls we meet our main goal every day: satisfied customers.

Bonnets

Another method to protect your chimney from humidity are bonnets on the chimney top. They protect

the chimney opening from rain and snow like a roof. Depending on the type and height of the chimney,

the bonnet may also serve other purposes. For example, they also protect from wind pressure, which

regulates the draught, or prevent unwanted accumulation of foliage or dirt caused by birds. You can

choose various materials for your bonnets to fit your chimney and your personal taste. We of course offer

the right solution for all requirements in the usual Raab quality.

Advantages: n��Increased durability: Sustains the fabric and reliably ensures functionality for years.

n�Easy, individual instalation: Production and dry construction minimize the effort on-site.

n�Protection from weather: Protection from humidity helps maintain the fabric.

n�Protection from sooting: Subliments reconstruction in the chimney on the outside.

n�Optimizes heat output: Chimney bonnets stabilize the draught and therefore combustion.

n�New appearance: Different designs make your chimney look like new.

Cowl CasingsRejuvinate your Chimney.

Range of use: n��Lasting protection of the building

fabric against weather.

n��For a consistent new look to complement roofing work.

n��As an inexpensive alternative to specially crafted solutions.

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Behind the nice casing there is either a shaft system or the protected fabric of existing chimneys. The modern stainless-steel

nozzle and the classic chimney bonnet are used here.

Draught-stabilizing concrete bonnet with additional moisture guard

Cover stonefor disused chimneys

Chimney roof for protectionagainst humidity

Draught-stabilizing concrete bonnet

Grid as protection against foreign material

Slate appearance Clinker Stainless steel Copper

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Duct EN Plus

The top stabilizes the draught in the flue gas system and optimizes the combustion. Especially for

atmospheric fireplaces (i.e. the combustion air is not supplied by a fan) the Raab Duct EN Plus optimizes

the function of your system through a steady combustion. In addition to these advantages it increases the

operational safety of the heating since critical winds have hardly any effect on the evacuation of smoke.

In order to make maintenace easier for the chimneysweep, the bonnet can be opened without tools

thanks to the quick fastener and free up the way into the chimney.

Chimney Extensions

These extensions increase the length of the chimney and also the draught in the system. Chimney

extensions can influence the capacity of the flue gas system to e.g. react to changing requirements for

fireplaces.

Bonnets:

Another method to protect your chimney from humidity are bonnets on the chimney top. They protect

the chimney opening from rain and snow like a roof. Depending on the type and height of the chimney,

the bonnet may also serve other purposes. For example, they also protect from wind pressure, which

regulates the draught, or prevent unwanted accumulation of foliage or dirt caused by birds. You can

choose various materials for your bonnets to fit your chimney and your personal taste. We of course offer

the right solution for all requirements in the usual Raab quality.

Advantages:

n��Stabilizing the draught: Thanks to the excelent aerodynamic properties (developed in a wind tunel), critical winds have hardly any influence on the draught in the chimney which ensures a steady combustion.

n��Increasing the heating performance: A steady draught in the chimney optimizes the combustion and increases the heating performance of your system through a smooth combustion.

n��Increasing operational safety: The bonnet protects against critical winds which reduces the counter pressure caused by unfavourable gusts of wind.

n��Can reduce the required chimney height: The technical properties of the Raab Duct EN Plus can reduce the wind pressure on the chimney top. This may reduce the chimney’s total height in planning which, depending on circumstances, allows for chimney tops that are lower than the gable.

Products for Draught Stabilizing.

Range of use: Duct EN Plus:

n��Against critical winds around the chimney top

n��For optimizing the chimney height during planning

n��Intended for operation T 600 N1 D G

Bonnets:

n��Protection against humidity

n�Protection against wind

n��Protection against foliage

n��Protection against bird nests

n��Regulating the draught

n��Aesthetics

Chimney extensions:

n��Adjustment to fireplace

n��Increasing draught in system

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The innovative Duct EN Plus is a unique draught technology component. It ensures a consistent draught even in critical winds,

protects from downwinds and may reduce the required total hieght.

The Duct EN Plus is the first product on the European market

with aerodynamic properties according to DIN EN 1856-1.

This may reduce the required total height of the chimney.

A damper allows for maintenance without dismantling the chimney bonnet.

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For housing construction, restoration or new buildings in the public sector, sports facilities, underground car parks, shopping centers, heating plants or industrial buildings ...

... in all areas individual and well-engineered solutions based on the respective standards and regulations are becoming increasingly important.

The Raab-Group helps you with your project from the first day of consulting to the buy-off of the system.

Raab steel chimneys, ventilation towers and necessary special constructions are inividually planned,

produced and, if needed, installed based on the requirements of the project in question. Of course we

also take your individual wishes into consideration. This means that our systems also adjust to the

general appearance of your project.

We guarantee an optimum performance, long durability and a design that fits your wishes for every

individual appliance.

Steel Chimney Systems,Ventilation Towers and Special Designs.

Range of use: n�� Modern heating systems

- Boilers: gas, oil, biomass boilers - Calorific value boilers - Steam boilers - Block-heating stations

n��For food industry. Butchers and backeries especially need stainless steel products that are adjusted to their specific requirements.

n��For process engineering - High flue gas pressure - Bypass solutions - Small spaces - High flue gas temperature - Combining several flue gas

pipes in one collecting pipe

n��For ventilation systems In parking decks and underground car parks, indoor swimming pools, hospitals, hotels, shopping centers, gastronomic businesses and for industrial use – everywhere an optimum air supply is essential.

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1. ConsultingThe world is full of new ideas - we help you to realize your ideas.

The great thing about the Raab-Group is that you can get everything from one source.

From the boiler connection to the flue gas tract, including all needed components, up to the outlet we always give advise for your special projects.

2. PlanningRaab gives you full support when planning the flue gas system.

It would take a lot of time, not to mention high costs, to collect all the knowledge, experience and technical know-how that the Raab-Group can offer you concentrated in one place and in very little time.

We can cover all requirements of your flue gas system with our products.

3. ConstructionFeel free to sit back during planning and implementation.

We take care of the construction plans and designs.

We implement your requirements to scale and in detail.

4. Production of ComponentsIn our works we manufacture custom-fit chimney systems, secondary-air appliances, silencers, steel chimney systems, elements of connection pipes or compensators for your flue gas system.

The products of the Raab-Group are all produced in Luckenau and Maisach and contribute to the “made in Germany“ label.

5. InstallationWith our extensive network of installation partners, we offer you the possibility to have your chimney / flue gas system installed anywhere in Germany and neighbouring countries.

We guarantee that all technological rules, standards and regulations are followed at all times.

6. Completed Chimney System

The result of our cooperation.

A chimney in 6 steps

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Extensive Support for Planning

In order to easily and quickly aligne all aspects that are relevant for planning an economical flue gas

system, Raab offers their product portfolio of the ALKON programs as a CAD library for all planners of

house and building equipment. This way experts receive a complete 2D and 3D components catalogue

including the flue gas components such as flue gas silencers by Kutzner + Weber. This shows

immediately if the flue gas system can be built with standard components or if special designs are

required. The plans can also be used to generate a bill of quantities for parts lists and biddings.

For developing the software, Raab cooperates with the liNear Corporation for Constructive Design.

The company provides CAD libraries and product data sets for free. Thanks to regular updates and

information, the program is always up-to-date. Raab is the first manufacturer of stianless steel flue gas

systems that provides CAD libraries and product data sets for free at www.linear.de.

Conclusion:

This software cooperation and the products of flue gas technology not only allow the Raab-Group

detailed planning of flue gas systems but also creates the requirements for a responsible use of fossil and

regenerative fuels.

Planning Tool for Expert Craftsmenand Planners, Flue Gas Systems and Flue Gas Technology.

Range of use: n��House equipment

n�Building equipment

n�System equipment

n�Process technology

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For users of the liNear program 3D Pipe&Power, the flue gas

systems have been integrated completely with all formed and

connecting parts as the so-called 3D Pipe Class. The program builds

up the flue gas system based on „mouse clicks“ in the usual way.

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Joseph Raab GmbH & Cie. KGGladbacher Feld 5D-56566 NeuwiedTelefon: +49 (0) 2631/913-0Telefax: +49 (0) 2631/913-150E-Mail: [email protected]: www.raab-gruppe.de

stainless-steel flue gas systems and lightweight chimneys ... · society is becoming increasingly...

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