Narvi Sauna Chimney

Complete and installation-ready flue kit Narvi Sauna Chimney is a high-quality and safe choice for sauna heaters and other fireplaces. In the design of the flue particular attention has been paid to fire-safety and insulation of the flue around the feedthrough of the ceiling. The modular design of the steel flue enables the flue to be installed considering the specific conditions of a particular building. The uninsulated start pipe (100mm stainless steel) has a diameter of 120/122 mm and it fits with all sauna stoves with smoke output diameter of 119mm.  The stainless steel pipe can be placed inside the insulated pipe, which makes removing and/or maintenance of the stove or the chimney easier. With a separately sold adapter (product 6015-111) this sauna smoke flue can be connected to any sauna stoves with flue outlet 115mm. The outer casing of the flue is made of zinc-coated steel finished with black heat-resistant paint. The diameter of the flue is 255 mm. The flue is insulated with fire-resistant mineral wool. The inner tube with a diameter of 125 mm is made of stainless steel. The flue is also equipped with a permanently installed damper. The safe Kota steel flue is provided with CE-marking confirming that the flue fulfils the requirements of fire safety class T600. The kit includes all parts and accessories needed for installation and connection of the flue. The length of the insulated section of the Narvi Sauna Chimney Steel is 1 500 mm and it includes all parts needed for installation: The max. full size of the main kit without extension sections is approximately 2 500 mm.

  • 1 200 mm insulated damper section and 300 mm flue section (inner diameter of the pipe is 125 mm)
  • 1 000 mm non-insulated, stainless steel connection pipe (inner diameter 120 mm, outside diameter 122)
  • Fastening ring
  • Feedthrough flange 0–22°
  • Vapour barrier flange 0–22° and vapour barrier tape
  • Feedthrough insulation 200 mm
  • Feedthrough cover, height 400 mm
  • Carrier ring of the flue with perforated band
  • Support of the base
  • Rubber sealing of the roof
  • Rainfall cover of the flue
Extension sections 300 mm, 600 mm and 1200mm of Narvi Sauna Chimney:
  • By using the main part and insulated extension sections you can build a flue with the exact height you need.

The sauna smoke flue can also be connected with a Narvi flue tank (water tank of 22 liters)


Technical info

Narvi Sauna Chimney
Internal pipe diameter125 mm
External pipe diameter255 mm
Extension parts, insulated
(sold separately)
30 cm / 60 cm / 120 cm
Uninsulated pipe lenght100 cm
Uninsulated pipe inside / outside diameter120 / 122 mm
Casingblack painted
Safety distances
Insulated parts7 cm
Connective pipes, uninsulated70 cm


6130 Extra bit 30 cm
6150 Extra bit 60 cm
6140 Extra bit 120 cm
6016 Water tank 22 l
6015-110 Cover belt
6015-111 Adapter 115/120



Kota Teräshormi Ø 125 mm FI
Kota Steel Flue Ø 125 mm GB
Kota Steel Flue Ø 125 mm SE
Kota Steel Flue Ø 125 mm NO


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