![Kondenzační kotle hlavni foto](https://almeva.swiss/sites/default/files/perm/image/kondenzacni_kotle_1920x400_0.jpg) 1. [ Home ](/en-gb) 2. Flue gas systems for condensing boilers # Flue gas systems for condensing boilers [ ![las zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_las.jpg) #### LAS The LAS plastic smoke evacuation system consists of fixed pipes, fittings with 87° branches and accessories PPH, PPH/​stainless steel — highly polished, white comaxite. The system is offered as a single layer in diameters from 60 mm to 315 mm or as concentric in diameters from 60/100 mm to 200/300 mm. It is especially designed for connecting multiple appliances to a common chimney in indoor or outdoor environments. --- Smokestack: - Systems for multiple connected appliances Boiler: - Condensing boiler ](/en-gb/products/las) [ ![cas zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_cas.jpg) #### CAS The CAS plastic smoke evacuation system consists of fixed pipes, fittings with 45°, 87° branches and PPH accessories. The system is offered as a single layer system in diameters from 60 mm to 315 mm and as a concentric system with a white coated stainless steel jacket in diameters from 110/160 mm to 200/300 mm. It is particularly suitable for cascades in indoor environments. --- Smokestack: - Systems for multiple connected appliances Boiler: - Condensing boiler ](/en-gb/products/cas-pph) [ ![](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_lab.jpg) #### LAB / LAL / LAM / LAC The plastic smoke evacuation system consists of concentric PPH solid pipes and fittings — high polished stainless steel, stainless steel comaxitated white sheet, matt stainless steel and stainless steel with non-galvanized copper coating. It is especially designed for flue gas ducts in outdoor environments. The individual elements of the system are connected by conical joints. --- Smokestack: - Concentric Boiler: - Condensing boiler ](/en-gb/products/lab-lal-lam-lac) [ ![lik lil zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_lik_lil.jpg) #### LIL / LIB The LIL and LIB smoke evacuation system consists of concentric fixed pipes and fittings PPH/​stainless steel high polished or stainless steel white comaxit. They are mainly designed for flue gas ducts in indoor environments. The connection of the individual elements of the system is by socket joints with EPDM seals. --- Smokestack: - Concentric Boiler: - Condensing boiler ](/en-gb/products/lil-lib-pph) [ ![lik lil zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_lik_lil.jpg) #### LIK The LIK plastic smoke extraction system consists of concentric fixed pipes and PPH/PPH fittings. It is designed especially for flue gas ducts in indoor environments. The connection of the individual elements of the system is by means of socket joints with EPDM seals. --- Smokestack: - Concentric Boiler: - Condensing boiler ](/en-gb/products/lik-pph) [ ![flex zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_flex.jpg) #### Almeva FLEX The FLEX single-layer plastic smoke evacuation system consists of flexible hoses, fittings and accessories. It is especially designed for the insertion of straight and angled chimney flues. The individual elements of the FLEX system are connected by means of bayonet socket joints with a sleeve and an EPDM seal. --- Smokestack: - Inner monolayer Boiler: - Condensing boiler ](/en-gb/products/flex-pph) [ ![star zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_starr.jpg) #### Almeva STARR Single layer plastic STARR smoke extraction system consisting of fixed pipes, fittings and PPH accessories. It is designed especially for interior use and for the insertion of straight chimney flues. The individual elements of the STARR system are connected by socket joints with four-part EPDM seals. --- Smokestack: - Inner monolayer Boiler: - Condensing boiler ](/en-gb/products/starr-pph) [ ![ELB / ELZ ZDĚNÝ SYSTÉM](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_elb_0.jpg) #### ELB / ELZ It is used for exhausting flue gases from all kinds of appliances. It is suitable as a common chimney for multiple connections of gas appliances on several floors. It functions as a concentric flue system for type C appliances. --- Smokestack: - Two-layer system Boiler: - Atmospheric boiler - Condensing boiler - Fireplaces and stoves - Stoves and ovens - Solid fuel boiler - Gas boiler - Turbo boiler ](/en-gb/products/two-piece-cabinet-system-with-stainless-insert-elb-elz) [ ![KLB zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_klb.jpg) #### KLB / KLZ It is used for exhausting flue gases from gas and condensing boilers with a maximum flue gas temperature at the appliance throat of 120 °C. It is designed for negative pressure as well as positive pressure flue gas paths. It functions as a concentric flue gas system for type C appliances. --- Smokestack: - Concentric Boiler: - Condensing boiler - Gas boiler ](/en-gb/products/two-box-compartment-system-with-plastic-insert-klb-klz) [ ![EIB zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_eib.jpg) #### EIB / EIZ The EIB and EIZ three-component chimney systems are used for flue gas extraction from appliances burning gaseous, liquid and solid fuels. It can be used in negative pressure as well as positive pressure mode. Its primary use is in the construction of new houses. --- Smokestack: - Three-layer system Boiler: - Condensing boiler - Fireplaces and stoves - Stoves and ovens - Solid fuel boiler - Gas boiler - Turbo boiler - All types of fuel ](/en-gb/products/three-piece-compartment-system-with-stainless-insert-eib-eiz) [ ![DK zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_dk.jpg) #### DK Concentric stainless steel flue system ALMEVA Double DK made of acid and moisture resistant steel. It is designed for positive pressure operation. --- Smokestack: - Concentric Boiler: - Atmospheric boiler - Condensing boiler - Gas boiler - Turbo boiler ](/en-gb/products/dk) [ ![DW25 zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_dw25.jpg) #### DW25 Universal three-layer stainless steel chimney system Almeva DW25 is suitable for all types of fuels and all types of appliances that operate in both vacuum and pressurized operation. --- Smokestack: - Three-layer system Boiler: - Atmospheric boiler - Condensing boiler - Fireplaces and stoves - Stoves and ovens - Solid fuel boiler - Gas boiler - Turbo boiler ](/en-gb/products/coatings/stainless-system-dw25) [ ![TW25 zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_tw25.jpg) #### TW25 The ALMEVA Quadra TW25 acid-resistant steel chimney system is suitable for solid fuel appliances, especially fi replaces that they operate under vacuum and must be connected to an external combustion air supply for combustion. --- Smokestack: - Three-layer system Boiler: - Solid fuel boiler ](/en-gb/products/tw25) [ ![EW zihane](https://almeva.swiss/sites/default/files/perm/image/kominove_systemy_313x600_se_zihanym_pozadim_ew.jpg) #### EW The Almeva EW stainless steel sanitary chimney system is suitable for exhausting flue gases from all types of solid, oil and gas fuel appliances operating in vacuum operation (with natural draught) and, with the use of seals, also in positive pressure operation. --- Smokestack: - Single-layer system Boiler: - Atmospheric boiler - Condensing boiler - Fireplaces and stoves - Stoves and ovens - Solid fuel boiler - Gas boiler - Turbo boiler ](/en-gb/products/single-layer-stainless-system-ew)