BSTFLEX Double Wall Stainless Steel Diesel Heater Exhaust Pipe is designed for routing combustion exhaust from diesel air heaters, parking heaters and other heating systems. The double-layer stainless steel construction provides a durable exhaust path for applications exposed to heat, vibration, moisture and demanding operating environments.

Unlike exhaust pipes limited to one common heater connection, this product is available in a broad range of diameters: 22, 24, 25, 26, 28, 30, 32, 35, 38, 40 and 42 mm. This makes it suitable for different heater exhaust outlets, replacement requirements and OEM exhaust assemblies.

The required diameter should be selected according to the heater exhaust outlet, connecting components and exhaust system design. For replacement applications, measure the existing exhaust connection before ordering rather than selecting the pipe only by heater power rating.

Double Wall Stainless Steel Construction

The exhaust pipe uses a double-wall stainless steel construction developed for heater exhaust service. The two-layer design provides greater structural integrity than a basic single-layer tube and is suitable for installations subject to repeated heating cycles, vibration and movement.

Stainless steel also provides good resistance to corrosion in automotive, marine, mobile equipment and outdoor environments where the exhaust system may be exposed to moisture and changing temperatures.

Why Use a Double Wall Diesel Heater Exhaust Pipe?

A diesel heater exhaust system must continuously carry hot combustion gases away from the heater. The pipe therefore needs to withstand more than temperature alone. Vehicle vibration, installation movement, moisture and repeated thermal cycling all influence service life.

A double wall diesel heater exhaust pipe provides a robust construction for these operating conditions while allowing buyers to select the diameter required by the exhaust connection.

Multiple Diameters for Different Heater Exhaust Systems

Diesel heater exhaust systems do not all use the same pipe diameter. Compact heaters may use smaller exhaust connections, while higher-capacity heaters, water heaters and other combustion heating equipment may require larger exhaust tubing.

BSTFLEX supplies the following diameter range:

22 mm / 24 mm / 25 mm / 26 mm / 28 mm / 30 mm / 32 mm / 35 mm / 38 mm / 40 mm / 42 mm

This broad size range allows distributors, heater manufacturers, installers and OEM buyers to source different heater exhaust pipe sizes from one product family.

22mm Diesel Heater Exhaust Pipe

The 22mm diesel heater exhaust pipe is intended for heater exhaust connections requiring a smaller pipe diameter. Always verify the actual heater exhaust outlet and mating component dimensions before specifying the pipe.

24mm and 25mm Diesel Heater Exhaust Pipe

24mm and 25mm exhaust pipes are widely searched sizes for compact diesel air heater installations. They can be used where the corresponding heater exhaust outlet and exhaust components are designed for these diameters.

26mm, 28mm and 30mm Heater Exhaust Pipe

The 26mm, 28mm and 30mm sizes provide additional options for exhaust systems that fall between the most common compact heater sizes and larger heating equipment connections.

32mm and 35mm Diesel Heater Exhaust Pipe

32mm and 35mm stainless steel heater exhaust pipes are available for systems requiring increased exhaust diameter. These sizes are useful for selected diesel air heaters, heating equipment and custom exhaust assemblies.

38mm, 40mm and 42mm Heater Exhaust Pipe

Larger 38mm, 40mm and 42mm exhaust pipe options extend the product range beyond small parking heater installations. They can be specified for compatible higher-flow heater exhaust systems, marine heating installations and other equipment using matching exhaust outlets.

Typical Applications

• Diesel air heaters
• Parking heaters
• Vehicle heating systems
• Truck and commercial vehicle heaters
• RV and motorhome heating systems
• Camper van diesel heaters
• Marine and boat heaters
• Cabin heating systems
• Mobile equipment heaters
• Industrial heating equipment
• Custom heater exhaust systems

Diesel Heater Exhaust Pipe for RV and Camper Van Installations

Diesel air heaters are frequently installed in RVs, motorhomes and camper vans where exhaust routing space is limited. Stainless steel exhaust tubing provides a durable route for carrying combustion gases from the heater toward a safe discharge point outside the occupied area.

The correct diameter should be matched to the heater exhaust connection and the exhaust system should be routed according to the heater manufacturer's installation requirements.

Heater Exhaust Pipe for Marine Applications

Marine heater installations place additional demands on exhaust components because moisture and corrosion can affect the system over time. Stainless steel construction makes the exhaust pipe suitable for compatible marine heater exhaust assemblies.

Pipe diameter, exhaust routing, connection method, insulation and discharge location should all be considered when specifying an exhaust system for a boat or marine heating application.

Exhaust Pipe and Exhaust Insulation Are Different Components

The diesel heater exhaust pipe carries combustion gases away from the heater. An exhaust insulation sleeve or exhaust lagging is installed around the pipe when additional thermal protection is required.

These products perform different functions and should not be confused during specification.

Where the exhaust pipe passes close to wiring, hoses, flooring, panels or other heat-sensitive components, a suitable high-temperature exhaust insulation product can be added according to the application.

How to Select the Correct Heater Exhaust Pipe

Before ordering, confirm the following information:

• Required pipe inside diameter
• Heater exhaust outlet diameter
• Required exhaust pipe length
• Connection and clamp requirements
• Installation routing
• Operating environment
• Required quantity
• Packaging requirements

For an existing heater, measuring the exhaust outlet or original pipe is more reliable than choosing a diameter only from the heater's nominal power rating.

OEM Diesel Heater Exhaust Pipe Supply

BSTFLEX supplies stainless steel heater exhaust pipes for replacement, distribution, heater assembly and OEM production requirements.

The wide diameter range makes it possible to support multiple heater platforms within one sourcing program. Buyers can specify the required diameter, length, quantity and connection requirements for quotation.

Frequently Asked Questions

What sizes of diesel heater exhaust pipe are available?

Available diameters include 22, 24, 25, 26, 28, 30, 32, 35, 38, 40 and 42 mm.

Is this a double wall exhaust pipe?

Yes. The product uses a double-layer stainless steel construction for heater exhaust applications.

What material is used for the exhaust pipe?

The exhaust pipe is manufactured from stainless steel for heat resistance, durability and corrosion resistance in demanding heater exhaust environments.

Is 24mm the only standard diesel heater exhaust pipe size?

No. Heater exhaust connections vary considerably between heater designs and applications. This product is available in multiple diameters from 22mm through 42mm.

How do I choose the correct diesel heater exhaust pipe diameter?

Measure the heater exhaust outlet and check the mating exhaust components before ordering. The pipe diameter should match the connection requirements of the heater exhaust system.

Can this pipe be used for parking heaters?

Yes. It can be used for compatible diesel air heater and parking heater exhaust systems when the selected pipe diameter matches the heater exhaust connection.

Can larger diameter exhaust pipe be supplied?

This product family currently covers 22, 24, 25, 26, 28, 30, 32, 35, 38, 40 and 42 mm diameters. Select the required size according to the heater and exhaust system design.

Is exhaust insulation still required?

That depends on the installation. Where the exhaust pipe is located close to heat-sensitive components, additional exhaust insulation or lagging may be used to reduce heat exposure to surrounding parts.

Request a Quote

For a quotation, send the required exhaust pipe diameter, length, quantity and application. Available diameters are 22, 24, 25, 26, 28, 30, 32, 35, 38, 40 and 42 mm.