Product Description

150mm 90 Degree Vitreous Enamel Flue Elbow

Model: 67-150-030

Create a full right-angle change in your stove flue with the VIT-Smooth 150mm 90 Degree Vitreous Enamel Elbow. This smooth bend redirects a compatible 150mm connecting flue by 90 degrees.

The elbow can help connect a rear appliance outlet or route the pipe towards an offset chimney connection. However, a 90-degree bend creates a major change in direction. Therefore, always confirm that the appliance instructions and flue design allow this arrangement.

In addition, the smooth matt-black finish complements both modern and traditional stoves. VIT-Smooth coats the elbow internally and externally with vitreous enamel, which helps protect the steel from heat and corrosive combustion gases.

At a Glance

• 150mm (6-inch) vitreous enamel flue elbow
• Creates a 90-degree change of direction
• Suitable for compatible rear-outlet and offset installations
• Smooth segmented bend
• Made from 1.2mm zero-carbon steel
• Internal and external vitreous enamel coating
• Approximately 1.4mm total finished thickness
• Smooth matt-black finish
• Friction-fit joint system
• Suitable for compatible gas, oil and solid-fuel appliances
• Temperature classification: T600
• Declared clearance to combustible materials: 450mm
• Model: 67-150-030
• EAN: 5060795860147

Key Features and Benefits

• 90-degree bend: Creates a full right-angle change in the flue route.
• Rear-outlet option: May help connect a compatible rear stove outlet to a vertical flue.
• 150mm diameter: Connects to compatible 6-inch VIT-Smooth components.
• Smooth construction: Creates a neat and professional-looking installation.
• Strong steel: Uses 1.2mm zero-carbon steel for durability.
• Internal enamel coating: Helps resist heat and combustion deposits.
• External enamel coating: Creates an attractive and easy-to-clean surface.
• Matt-black appearance: Complements most contemporary and traditional stoves.
• Friction-fit joints: Allow simple connection to matching components.
• T600 classification: Suits compatible high-temperature stove installations.

What Is a 90 Degree Flue Elbow?

A 90-degree elbow changes the direction of a connecting flue by a full right angle. For example, it may turn a horizontal connection into a vertical flue route.

This fitting can work well with some rear-outlet appliances. It may also help route the flue towards a chimney connection where the available space does not allow a gradual offset.

However, every bend adds resistance to the movement of combustion gases. Consequently, the installer must check that a 90-degree change suits the appliance and complete chimney design.

Common Uses

• Connecting a compatible rear-outlet stove
• Turning a horizontal flue route vertically
• Connecting to a suitable chimney opening
• Routing around part of a non-combustible fireplace structure
• Creating a compact change of direction where permitted

Always check the flue-system dimensions before ordering. In addition, allow for the overlap where the elbow enters the adjoining components.

90 Degree Elbow vs Equal Tee

Feature	90 Degree Elbow	Equal Tee with Cap
Change of direction	90 degrees	90 degrees
Built-in sweeping access	No	Usually provided through the removable cap
Typical application	Compact change of direction	Rear connection with cleaning access
Space required	Generally more compact	Needs space below for the capped branch

 

A tee with a removable cap may offer better sweeping access for some rear-outlet installations. However, a 90-degree elbow may suit layouts with less available space. Therefore, discuss the best option with the installer before ordering.

Why Choose VIT-Smooth?

VIT-Smooth provides a high-quality alternative to basic welded black stove pipe. The manufacturer carefully finishes the welded areas before applying the enamel. Consequently, the welds appear almost invisible and the bend has a clean, smooth shape.

The manufacturer forms the elbow from 1.2mm zero-carbon steel. It then adds approximately 0.2mm of powder vitreous enamel. Together, the steel and coating create a total finished thickness of approximately 1.4mm.

Furthermore, VIT-Smooth coats both the inside and outside of the fitting. The internal layer helps resist heat and corrosive combustion products. Meanwhile, the external layer creates a deep matt-black finish that matches most UK stoves.

VIT-Smooth 150mm Elbow Specification

• Product type: smooth 90-degree flue elbow
• Model/SKU: 67-150-030
• EAN: 5060795860147
• Nominal internal diameter: 150mm (6 inches)
• Elbow angle: 90 degrees
• Access door: no
• Material: zero-carbon steel
• Steel thickness: 1.2mm
• Coating: powder vitreous enamel
• Approximate enamel thickness: 0.2mm
• Approximate total finished thickness: 1.4mm
• Coating position: internal and external
• Colour: black
• Finish: smooth matt black
• Joint type: friction fit
• Fuel compatibility: gas, oil and solid fuel
• Temperature classification: T600
• Classification: EN 1856-2 T600 N1 Vm L80120 G450
• Declared minimum distance to combustible materials: 450mm
• Manufacturer warranty: 12 years, subject to its terms

Suitable Appliances and Flue Systems

You can use this elbow with compatible gas, oil and solid-fuel appliances. These may include wood-burning stoves, multifuel stoves and other domestic heating appliances.

However, always check the appliance instructions before ordering. The manufacturer will state the required diameter, temperature classification and permitted number of bends.

This elbow can form part of a connection leading to:

• A suitable masonry chimney
• An approved flexible chimney liner
• A compatible chimney or liner adaptor
• An insulated twin-wall flue system
• Matching 150mm VIT-Smooth pipes and fittings

Application

This 150mm vitreous enamel elbow forms part of a visible single-wall connecting flue. It creates a 90-degree change in direction between a compatible appliance and the main chimney system.

The product carries a T600 temperature classification. Therefore, it has a nominal maximum continuous flue-gas temperature classification of 600°C.

Never use single-wall vitreous enamel stove pipe to pass through walls, ceilings, floors, roofs, cupboards or concealed spaces. Instead, use a suitable tested and insulated chimney system wherever the flue passes through the building structure.

Planning the Flue Route

First, confirm that the appliance manufacturer allows a 90-degree bend. Next, measure the position of the appliance outlet and chimney connection. Finally, allow for every joint overlap.

Keep the route as simple as possible and avoid unnecessary bends. In addition, make sure the flue rises towards the chimney where the appliance and system instructions require it.

Do not use this elbow as a substitute for a properly planned chimney route. The installer must consider draught, cleaning access, support and all applicable regulations.

Correct Installation Direction

Fit the elbow with the male or smaller-diameter end pointing downwards towards the appliance. The female end should face towards the chimney.

This orientation keeps condensates and combustion deposits inside the flue system. As a result, they remain within the pipe instead of leaking onto the outside of a joint.

Push each connection together fully. In addition, support the adjoining pipework so it does not place excessive weight or sideways force on the elbow or appliance outlet.

Jointing and Sealing

VIT-Smooth uses a friction-fit connection system. Therefore, joints between matching components do not normally require fire clay.

However, follow the instructions supplied with the appliance and complete flue system. If those instructions require a jointing compound, use only suitable fire cement or high-temperature silicone sealant approved for the application.

Do not use ordinary household silicone because it may not withstand flue temperatures.

Sweeping and Inspection Access

Model 67-150-030 does not include an access door. Therefore, you must provide suitable inspection and sweeping access elsewhere in the flue route.

A 90-degree change in direction can make chimney sweeping more difficult. Consequently, consider using the doored version of the elbow or fitting a doored pipe or inspection tee nearby.

Discuss the cleaning route with the installer or chimney sweep before completing the installation. This will help ensure that every part of the system remains accessible.

Can the Elbow Be Cut?

Avoid cutting a vitreous enamel elbow. Cutting may chip the protective coating, expose the steel or damage the shaped connection ends.

Instead, use compatible straight or adjustable pipes to achieve the required position. This approach keeps the factory enamel and connection profiles intact.

If the manufacturer permits an alteration, protect every exposed steel edge with suitable high-temperature paint. Furthermore, make sure the modified elbow still forms a safe and secure connection.

Clearance from Combustible Materials

This elbow has a declared minimum distance of 450mm from combustible materials. Combustible materials may include timber, furniture, curtains and heat-sensitive building products.

In addition, do not automatically treat plasterboard as non-combustible. It may cover timber studs or form part of a combustible wall structure.

The appliance or another flue component may require a greater clearance. If the requirements differ, always follow the greatest stated distance.

Installation Safety

Before installation, confirm that the 150mm diameter matches the appliance and every adjoining component. Also, check that the 90-degree change complies with the appliance and flue-system instructions.

The completed installation must comply with current Building Regulations and all relevant standards. Therefore, we recommend using a suitably competent installer, such as a HETAS-registered installer where appropriate.

Always wear suitable gloves and eye protection when handling metal flue components.

Inspection and Maintenance

Check the elbow and adjoining joints regularly. Look for movement, damaged enamel, staining, corrosion or signs of leakage.

In addition, arrange regular chimney sweeping at intervals suitable for the appliance, fuel and frequency of use. The 90-degree bend may need particular attention during cleaning.

Only clean the external enamel after the elbow has cooled completely. Use a soft, dry or slightly damp cloth. Avoid abrasive pads and harsh chemicals because they may damage the matt-black finish.

Finally, replace the elbow if it becomes badly damaged, distorted, corroded or insecure.

Product Guides and Matching Components

• Download the VIT-Smooth brochure
• Discover why we rate VIT-Smooth stove flue pipe
• View matching 150mm vitreous enamel flue components

Why Buy from SNH Tradecentre?

• Specialist stove, chimney and flue-system supplier
• Extensive range of matching 150mm VIT-Smooth components
• Practical product advice from an experienced team
• Nationwide UK delivery options
• Secure online ordering
• Trade counter in Birchington, Kent
• Support before and after your purchase

Need help checking whether a 90-degree elbow suits your flue route? Call the SNH Tradecentre team on 01843 842727 before ordering.

You can also read SNH Tradecentre customer reviews on Google.

Frequently Asked Questions

What angle is this flue elbow?

The elbow creates a full 90-degree or right-angle change in the connecting flue route.

What diameter is the elbow?

It has a nominal internal diameter of 150mm, which equals approximately 6 inches.

Can I connect it to a rear-outlet stove?

Possibly. It may suit some compatible rear-outlet appliances. However, check the stove instructions because a tee with a sweeping cap may suit some installations better.

Does this elbow include an access door?

No. Model 67-150-030 has no built-in access door. Therefore, provide suitable sweeping and inspection access elsewhere.

Can I use it with a wood-burning stove?

Yes, it suits compatible solid-fuel appliances, including many wood-burning and multifuel stoves. However, the appliance must require a 150mm flue connection and permit the proposed bend.

Can the elbow pass through a wall or ceiling?

No. This is a single-wall connecting component. It must not pass through walls, ceilings, floors, roofs or concealed spaces. Use a suitable insulated chimney system for building penetrations.

How far must it remain from combustible materials?

The product’s G450 classification declares a minimum clearance of 450mm. However, follow a greater distance if the appliance or another component requires one.

Does it need fire clay?

No. VIT-Smooth uses friction-fit joints, so fire clay is not normally required. However, follow the appliance and flue-system instructions regarding approved jointing compounds.

Which way up should I install it?

Point the male or smaller-diameter end downwards towards the appliance. Then position the female end towards the chimney.

Can I cut the elbow?

Avoid cutting it because this may damage the enamel or formed connection ends. Use compatible straight or adjustable pipes to achieve the required position.

What does T600 mean?

T600 means the elbow has a nominal maximum continuous flue-gas temperature classification of 600°C.

What warranty does it include?

The manufacturer lists a 12-year warranty. However, its installation, use and maintenance conditions will apply.