Barrel Sauna Akka #420

The Akka #420 garden sauna is the largest of the barrels we offer in the collection of traditional Finnish designs. Like the smaller models of the Akki sauna, the barrel is available in a ThermoWood® finish.

The total length of the sauna is 4.2 m, comfortably accommodates 6 to 8 people. Inside the barrel there is a wooden terrace with comfortable benches, a changing room and a room with a sauna heater.


  • walls made of ThermoWood®, thermally threated Scandinavian pine, log thickness 42 mm
  • electric or wood-fired heater Harvia or Huum – option
  • roofing from asphalt shingles in the color of your choice
  • wooden benches and internal platform
  • internal platform from ThermoWood®
  • base made of impregnated wooden logs
  • corrosion-resistant steel bands
  • tempered glass glazing (thickness: 8 mm)
  • panoramic windows or rectangle shape x2 (option)
  • ventilation channels to ensure air exchange
  • oiling (option)

Interior and equipment

  • Outer diamater: 225 cm
  • Total length: 420 cm
  • Sauna room length: 240 cm
  • Length of the changing room: 100 cm
  • Terrace length: 60 cm
  • Weight: 1150 kg


  • HARVIA 16

    Inside the Akka #420 sauna there is a high-quality Harvia 16 wood-burning stove. The Harvia 16 stove has a classic look and is designed for small wood-fired saunas. It is thanks to it that we can experience unforgettable impressions and feel the traditional atmosphere of a Finnish sauna. Natural warmth and proper air circulation increase the pleasure of staying in the sauna. A pleasant atmosphere in the sauna is facilitated by a glass door, through which we can observe the beauty of burning wood. The direction in which the door opens is alternating. Constant air exchange is ensured by two ventilation ducts. Harvia heaters are designed for fast heating of the sauna and cleaner combustion. The heater meet the requirements of the CE marking.

  • HUUM

    The HUUM DROP sauna heater is a real gem among electric sauna heaters. It combines the best features of a Nordic sauna with modern design and innovative technological solutions. Not only does it look stylish, but it also has a mild and long-lasting vapor, ease of use and durability. The minimalist design is inspired by nature and exposes the natural beauty of the stones. The inspiration for the creation of this stove was nature – a drop of water, to be precise. The stones are also unusual – they are specially selected pebbles from the olivine group.

  • HUUM heater control

    The stylish UKU controller makes heating in the sauna easy and convenient. The UKU can be used locally and is equipped with a door sensor, overheating protection and child lock to ensure safe sauna use. For the convenience of use, it is already possible to control the operation of the sauna with a smartphone.

    Controller functions:

    • Temperature control: 40-110 °C
    • Overheating protection
    • Child protection
    • Colors: black, ash
    • Ability to connect to lighting/ventilation and steam generator

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