Black Steel Chimney System SPNP for Pellet Stoves

Modern pellet stoves and boilers require a special approach to flue gas extraction. The specifics of their operation include lower exhaust gas temperatures and positive pressure created by the built-in fan. These factors require the use of specialized chimney systems.

SPNP is a single-wall black steel chimney system designed specifically for connecting pellet heating equipment. Made of 1.2 mm thick DC01 carbon steel and coated with heat-resistant paint, these chimneys serve as the starting section connecting the stove or boiler to the main shaft (brick, ceramic, or insulated stainless steel).

What is the SPNP System Suitable For?

Before placing an order, ensure that the SPNP system meets your installation conditions:

Yes, for pellet stoves and boilers: The system is fully adapted to work with low flue gas temperatures (up to 200°C) and positive pressure from the fan (Class P1).
Yes, for indoor connections: Ideal for connecting a stove to the main chimney indoors (e.g., in a boiler room).
No, for wood-burning stoves: The system is not designed for equipment with high flue gas temperatures and the risk of soot fire (Class O).
No, for outdoor installation: Single-wall pipes must not be installed outside the building or in cold attics without insulation. Use insulated sandwich chimneys for these purposes.

System Advantages and Materials

Material Thickness: The chimneys are made of cold-rolled carbon steel sheet (grade DC01) with a guaranteed thickness of 1.2 mm, which ensures the rigidity of the structure.
Heat-Resistant Coating: The surface is treated with black Senotherm paint. It withstands heating, does not emit odors during operation, and maintains an aesthetic appearance.
Reliable Tightness: Heat-resistant silicone seals prevent gas leakage even under positive pressure in the system (Class P1).
Socket Connection with Fixation: Precise part geometry ensures fast assembly without the need for tools.

System Elements

Our catalog contains all the necessary parts for connecting a pellet stove:

Pipes

Straight sections 1.0 m, 0.5 m, and 0.25 m long, as well as telescopic pipes (400-595 mm). They allow you to accurately adjust the length of the chimney without the need for cutting.

Fittings

Elbows and Tees: 90° and 45° angles to change the direction of the chimney and connect the equipment. Models with inspection doors are available for easy cleaning.

End Caps, Terminals, and Adapters

End Caps: Blank elements (including those with a handle) for closing unused branches and tees.
Adapters: Elements for a tight connection with ceramic or brick chimneys.
Terminals: Outdoor terminals with a rain cap and indoor outlet terminals, decorative rosettes, and condensate drains.

Technical Specifications

Parameters of SPNP Black Steel Chimneys
Parameter	Value
System Diameter	80 mm (standard for pellet equipment)
Material and Thickness	Carbon steel DC01, 1.2 mm
Operating Temperature	T200 (up to 200°C)
Pressure Class	P1 (operation under positive pressure)
Soot Fire Resistance	Class O (not designed for)
Corrosion Resistance	Vm (determined by steel grade and thickness: DC01, 1.2 mm)
Coating	Heat-resistant Senotherm paint (black)
Seal	Heat-resistant silicone
Certification	CE (EN 1856-2 standard)