The chimneys are made of acid-resistant chrome-nickel steel  of grade 1.4404 according to DIN 17441 with a thickness of 0.5 to 0.6 mm. They are mainly used for the discharging of fumes from gas, oil, wood or pellet-fired heating devices operating under negative pressure.  The outer wall is made of steel 1.4301-4N  brushed or painted black in RAL9005. Thermal insulation is made of 30 mm thick mineral wool.  Such chimneys are resistant to the corrosive effect of acidic condensate, formed during the combustion process. Water vapor condenses on the cool inner walls of the chimney and, in the form of condensate, is  through the bowl at the bottom of the chimney. The condensation phenomenon can occur at the time of starting or cyclical operation of the boiler.

Maximum temperature of continuous operation: 600°

Advantages:

– high resistance to acids, mainly sulfuric acid
– much lower flue gases flow resistance than traditional masonry chimneys due to lower surface roughness
– can be used indoors in newly built chimneys as well as when renovating old ones
– lightweight construction
– very simple and quick installation without demolition work
– possibility of any configuration of the set

Application:

– for the construction of stand-alone, free-standing chimney ducts for the discharge of fumes from stoves and heating appliances fired by gas, fuel oil, wood or pellets operating under negative pressure

Double walled heat – resistant chimney system are used for building chimneys taking out fumes from wood burning stoves. Chimneys are made with the inner pipe made with 1.4828 (acc. to DIN17441) , outer pipe – 1.4301 (acc. to DIN17441), thermal insulation – ceramic fibre wool, thickness 50m. The chimney made from elements of this system is a self-standing construction, not needing usage of any additional ceramic materials.

Advantages:

• high acid-resistance
• much lower resistance of fume flows in comparsion to traditional brick chimneys, because of small roughness of the surface
• possibility of applying chimney with buildings with no traditional brick chimney
• wide possibilities of system configuration
• wide range of products, possibility of making non-standard products

Usage

Single walled flue system is used to exhaust fumes from modern condensing boilers, which use the effect of water vapour condensation in the combustion process, or from “Turbo” type of boilers, with closed combustion chamber, that use a ventilator to exhaust fumes (positive pressure chimney duct). In this system, air necessary for combustion process is taken directly from the boiler room or from outside with the usage of a separate pipe.They secure surface of ceramic chimney ducts from destructive influence of chemical substances which are a part of the fumes. Single walled flue system allows the old, existing chimney ducts to be used with the new and modern type of boilers and new working conditions.

Advantages:

• high acid resistance
• very durable
• easy mounting process, with no demolition works necessary
• wide system configuration possibilities
• non-flammable material
• high chimney tightness

Usage

Air – flue systems are used to exhaust fumes from modern condensing boilers, which use the effect of water vapour condensation in the combustion process, or from “Turbo” type of boilers, with closed combustion chamber, that use a ventilator to exhaust fumes (positive pressure chimney duct). They secure surface of ceramic chimney ducts from destructive influence of chemical substances which are a part of the fumes.  In this system, air necessary for combustion process is taken from outside with the usage of the outer pipe – that is why SKSP; SKSP-XO systems are built with double walled elements (two pipes axially placed). Construction of the systems allows fume exhaustion to be made through inner duct while air supply is made through the gap between inner and outer duct. Double walled air – flue system elements are made of stainless steel: inner pipe –  1.4301 (acc. to DIN17441) outer pipe – 1.4301 (acc. to DIN17441). These chimneys allows the old, existing chimney ducts to be used with the new and modern type of boilers and new working conditions.

Advantages:

• high acid resistance
• very durable
• easy mounting process, with no demolition works necessary
• wide system configuration possibilities
• non-flammable material
• high chimney tightness

Usage

System for modern, energy saving boilers nad pellet stoves. Inner pipe is made with 1.4301 acc. to DIN17441 (00H170N14M2 wg PN-71/H-86020) , outer pipe – 1.4301 acc. to DIN17441 (0H18N9 wg PN-71/H-86020), thermal insulation – mineral wool, thickness 30 m. Maximum working temperature: 250°C. Chimney made from elements of this system is a self-standing construction, not needing usage of any additional ceramic materials.

Insulated air – flue systems are used to exhaust fumes from modern condensing boilers, which use the effect of vapor condensation in the combustion process, or from “Turbo” type of boilers, with closed combustion chamber, that use a ventilator to exhaust fumes (positive pressure chimney duct). They are used for building self-standing chimneys that will be resistant to destructive influence of chemical substances which are a part of the fumes.

In this system, air necessary for combustion process is taken from outside with the usage of the outer pipe – that is why ; SKPSD-X systems are built with triple walled elements (two pipes axially placed and thermal insulation of 50 mm with outer casing). Construction of the systems allows fume exhaustion to be made through inner duct while air supply is made through the gap between inner and outer duct.

Advantages:

• high acid resistance
• very durable
• wide system configuration possibilities
• non-flammable material
• high chimney tightness
• to build self-standing chimneys extracting fumes from modern, condensing gas boilers

Usage