Product Description

150mm One Piece Offset Pipe – Vitreous Enamel

Model: 67-150-045

Create a neat change in your stove flue route with the VIT-Smooth 150mm One Piece Offset Pipe. This fixed component includes a built-in lateral offset of approximately 100mm. Therefore, it can bring the flue back into line when the stove outlet and chimney connection do not sit directly above each other.

The one-piece design replaces the separate bends and short pipe sections often needed to create an offset. As a result, it reduces the number of visible joints and gives the installation a cleaner appearance.

In addition, the smooth matt-black finish complements most traditional and modern stoves. The short male pipe section at the bottom connects to a compatible stove pipe or fitting.

Product at a Glance

• Product type: fixed one-piece stove offset
• Nominal diameter: 150mm (6 inches)
• Built-in lateral offset: approximately 100mm
• Lower connection: short male-ended pipe section
• Material: 1.2mm zero-carbon steel
• Coating: internal and external vitreous enamel
• Finish: smooth matt black
• Temperature classification: T600
• Minimum distance from combustible materials: 450mm
• Model: 67-150-045
• EAN: 5060795860543
• Warranty: 25 years

Key Features

• Creates an offset of approximately 100mm
• One-piece construction for fewer visible joints
• Helps align a stove outlet with the vertical flue route
• 150mm nominal internal diameter
• Short male connection at the lower end
• Strong 1.2mm zero-carbon steel construction
• Internal and external vitreous enamel coating
• Approximately 1.4mm total finished thickness
• Smooth matt-black surface
• Friction-fit joint system
• Suitable for compatible gas, oil and solid-fuel appliances
• Designed for visible single-wall connecting flue systems

Achieve a Neater Flue Offset

A stove outlet does not always line up with the chimney, flexible liner or twin-wall flue connection above it. In this situation, the VIT-Smooth one-piece offset moves the connecting flue sideways by approximately 100mm.

Normally, an installer may need two bends and one or more short pipe sections to create the same change in alignment. However, this single component creates the offset with fewer joints. Consequently, the finished installation can look neater and less cluttered.

Fewer separate connections can also simplify installation and routine inspection. Nevertheless, always check the complete product dimensions and the available space before ordering.

Where Can You Use This Offset?

This offset may help when:

• The stove outlet does not sit directly below the chimney opening
• The flue needs to clear a suitable non-combustible feature
• The connection into a twin-wall system sits slightly to one side
• A traditional two-bend offset would create too many visible joints
• The installation needs a cleaner and more balanced appearance

The component provides a fixed offset. Therefore, confirm the required sideways movement before you buy it. If your installation needs a different amount of adjustment, consider a compatible adjustable offset or separate bend arrangement.

Why Choose VIT-Smooth?

VIT-Smooth offers a high-quality alternative to standard welded black stove pipe. The manufacturer carefully finishes the welded areas before applying the enamel. As a result, the joints and welds have a smooth and consistent appearance.

The deep matt-black finish suits most UK stoves. Moreover, the internal and external vitreous enamel coating helps protect the steel from heat and corrosive combustion products.

VIT-Smooth uses 1.2mm zero-carbon steel with an enamel layer of approximately 0.2mm. Together, these layers create a total finished thickness of approximately 1.4mm.

VIT-Smooth 150mm Offset Pipe Specification

• Download the VIT-Smooth brochure
• Product type: fixed one-piece stove offset
• Nominal diameter: 150mm (6 inches)
• Built-in lateral offset: approximately 100mm
• Material: zero-carbon steel
• Steel thickness: 1.2mm
• Coating: powder vitreous enamel
• Approximate enamel thickness: 0.2mm
• Approximate total finished thickness: 1.4mm
• Coating location: internal and external
• Colour: matt black
• Joint type: friction fit
• Fuel compatibility: gas, oil and solid fuel
• Temperature classification: T600
• Standard: EN 1856-2
• Full classification: EN 1856-2 T600 N1 Vm L80120 G450
• Declared distance from combustible materials: 450mm
• Manufacturer: Mi-Flues
• Range: VIT-Smooth
• Model and SKU: 67-150-045
• EAN: 5060795860543
• Warranty: 25 years
• Country of manufacture: United Kingdom

Application

This 150mm vitreous enamel offset forms part of a single-wall connecting flue. It connects a compatible heating appliance to a suitable chimney system.

For example, the offset may form part of a connection to:

• A suitable chimney stack
• An approved flexible flue liner
• An insulated twin-wall chimney system
• Another compatible 150mm VIT-Smooth component

The component suits compatible gas, oil and solid-fuel appliances. However, always check the appliance manufacturer’s instructions before choosing the flue diameter and system type.

Single-wall vitreous enamel stove pipe must not pass through walls, ceilings, floors, roofs or concealed spaces. Use a suitable insulated chimney system whenever the flue passes through the building structure.

Temperature Classification

This product carries a T600 classification. Therefore, it has a nominal continuous operating-temperature class of up to 600°C when installed as part of a suitable flue system.

The complete installation must still meet the requirements of the appliance manufacturer, the flue manufacturer, current Building Regulations and all relevant standards.

Installation Direction

Install the smaller male end downwards towards the appliance. This direction helps keep condensates and combustion deposits inside the flue system.

Before fitting the component, rotate it into the correct position and check that the 100mm offset lines up with the rest of the flue route. In addition, make sure the offset does not place sideways force on the stove outlet.

Support the complete flue correctly. Do not allow the weight of the chimney system to rest on the appliance or this offset component.

Jointing and Sealing

VIT-Smooth components use friction-fit joints, so they do not require fire clay. Push each compatible component fully into the next connection and follow the manufacturer’s fitting instructions.

If the instructions specify a jointing compound or sealant, use only a product that suits the appliance and its operating temperature. Also, fit any required clamps, brackets or mechanical supports.

A jointing compound cannot correct a loose, damaged or incompatible connection. Therefore, replace any part that cannot form a safe and secure joint.

Distance from Combustible Materials

Maintain at least 450mm between this 150mm single-wall flue component and combustible materials. This distance matches the product’s G450 classification.

Combustible materials may include:

• Timber frames and roof structures
• Wooden beams, shelves and mantels
• Furniture and curtains
• Decorative wall coverings
• Materials hidden behind plasterboard

Plasterboard does not automatically make a wall non-combustible. For example, the board may cover timber studs. Therefore, check the complete wall construction before confirming the clearance.

The stove or another part of the flue system may require a greater distance. If so, always follow the largest stated clearance.

Can You Cut the Offset Pipe?

Avoid cutting this vitreous enamel offset. Cutting may chip the protective coating and expose the steel beneath it. In addition, changing the ends may prevent the component from forming a safe joint.

Instead, use compatible straight or adjustable pipe sections to achieve the required installation height. If the manufacturer allows an alteration and cutting proves unavoidable, protect every exposed steel edge with suitable high-temperature paint.

Any modification must preserve the correct joint direction and provide a secure connection. If you are unsure, ask a competent installer or contact SNH Tradecentre before altering the product.

Cleaning and Maintenance

An offset changes the direction of the flue route. Consequently, you must provide suitable access for inspection and cleaning.

Consider adding a compatible pipe, bend or offset with an access door nearby if the appliance does not provide enough sweeping access.

Check the offset and its joints regularly. Look for:

• Loose or insecure connections
• Chipped or damaged enamel
• Signs of corrosion
• Soot or tar deposits
• Signs of escaping combustion products
• Distortion caused by overheating

Arrange chimney sweeping at intervals that suit the appliance, fuel and frequency of use. Replace the component if it becomes badly damaged, corroded, distorted or insecure.

Important Safety Information

• Use this product only as a single-wall connecting flue component.
• Do not pass it through walls, ceilings, floors, roofs or concealed spaces.
• Keep it at least 450mm from combustible materials.
• Install the smaller male end towards the appliance.
• Check that the offset aligns correctly before fixing the system.
• Support the flue so it does not place weight or sideways force on the stove.
• Provide suitable access for inspection and sweeping.
• Follow the stove and flue manufacturers’ instructions.
• Comply with current Building Regulations and relevant standards.
• Use a suitably competent installer.

Complete Your 150mm Flue System

Browse the full range of 150mm VIT-Smooth vitreous enamel flue components, including straight pipes, bends, adaptors, adjustable sections, access-door fittings and trim rings.

You can also read why SNH recommends VIT-Smooth stove pipe for compatible installations.

Why Buy from SNH Tradecentre?

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

Need help checking whether this offset will suit your stove and flue route? Call the SNH Tradecentre team on 01843 842727 before ordering.

Frequently Asked Questions

How much offset does this component provide?

The component creates a fixed lateral offset of approximately 100mm. Check the full dimensions and your available installation space before ordering.

What diameter is the offset pipe?

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

Why use a one-piece offset?

A one-piece offset creates the required sideways movement with fewer separate bends and joints. Therefore, it can give the finished installation a cleaner appearance.

Is the offset adjustable?

No. This model provides a fixed offset of approximately 100mm. Choose the adjustable VIT-Smooth version if your installation needs extra adjustment.

Which way up should I install it?

Install the smaller male end downwards towards the appliance. Always follow the instructions supplied with the stove and flue system.

Can I use it with a wood-burning stove?

Yes, it suits many compatible wood-burning and multifuel stoves. However, confirm the required flue diameter and classification in the appliance manufacturer’s instructions.

Can this offset pass through a wall or ceiling?

No. This is a single-wall connecting flue component. Use a suitable insulated chimney system for walls, ceilings, floors, roofs and concealed spaces.

How far must it remain from combustible materials?

Keep the offset at least 450mm from combustible materials. If the stove or another component needs a greater distance, follow the larger clearance.

Does it need fire clay?

No. VIT-Smooth components use friction-fit joints and do not require fire clay. Nevertheless, follow the manufacturer’s instructions for any approved sealant or mechanical fixing.

What is the temperature classification?

The component carries a T600 classification. This gives it a nominal continuous operating-temperature class of up to 600°C.

Does the offset provide sweeping access?

No. This model does not include an access door. Therefore, make sure the complete flue system provides another suitable point for inspection and sweeping.

What warranty does it include?

SNH Tradecentre lists this component with a 25-year warranty. Check the warranty conditions and installation requirements when ordering.