The Narvi Kaamos 20 Wood-Burning Sauna Stove is a Finnish wood-burning sauna stove from Narvi. Narvi EN 15821 nominal space-heating output: 21 kW. Room range on narvi.fi: 10–20 m³ (about 353–706 cu ft). Stones and the flue are sold separately. This is not an electric heater. This authorized SKU is Kaamos 20, not Kaamos 16 / 24 and not the through-wall or water-tank Kaamos siblings.
How it heats
This is a continuously heated wood-burning sauna stove, not an electric heater. You load dry firewood, run the fire while you bathe, and throw water on the rocks for löyly. Smoke leaves through a 119 mm outlet — top or rear on most of these SKUs (cap the unused opening). Connect it to a masonry chimney or Narvi’s Kota 15 steel flue (sold separately). Clearances in the IOM are to combustibles; a Narvi installation base is required on combustible floors and over underfloor heat. Stones are sold separately. This listing is the stove.
What’s included
- Kaamos 20 wood-burning stove
- Painted black casing, cast-iron glass door, wooden handle, adjustable feet
-
Stones sold separately — Narvi IOM: olivine diabase or vulcanite, 10–15 cm. Split-face handle
narvi-sauna-stones-split-10-15; rounded narvi-sauna-stones-rounded-10-15.
-
Flue sold separately — Kota 15 steel chimney handle
narvi-kota-basic-flue-15 (SKU 304-128645). Not a US 6-inch Class A kit.
Specs
-
Brand: Narvi (Finland)
-
Type: Wood-burning sauna stove
-
Model: Kaamos 20
-
SKU: 304-127931
-
Narvi EN 15821 thermal output: 21 kW
-
Approx. room volume (narvi.fi): 10–20 m³ / about 353–706 cu ft
-
Height: 76 cm + 1.5 cm feet / 29.9 in
-
Firebox roof: 10 mm (narvi.fi)
-
Width × depth: 48 cm / 18.9 in × 51 cm / 20.1 in
-
Stove weight without stones (narvi.fi): 65 kg / about 143 lb
-
Stone load (narvi.fi): 60 kg / about 132 lb
-
Stone size (Narvi IOM): 10–15 cm olivine diabase or vulcanite
-
Stone boxes on this shop: about 3 × narvi-sauna-stones-split-10-15 (20 kg / 44 lb)
-
Flue outlet: 119 mm
-
Flue outlet height from floor (narvi.fi): 55.5 cm / 21.9 in
-
Safety distances to combustibles (narvi.fi): sides 30 cm; front 50 cm; up 127 cm; rear 20 cm
-
Control: None — this is a wood stove, not Xenio / UKU / AirIQ
-
Heater in the carton: Yes — this listing
-
Stones in the carton: No
-
Chimney in the carton: No
Downloads
Sizing
Match stove output to insulated interior volume. Glass, stone, tile, or thin walls eat heat. Chimney, clearances, and combustion air follow the Narvi manual and local code — we do not invent UL or a US 6-inch Class A kit. Email hello@selfcaresaunas.com if you want a second look at the room.
Code, UL, and who decides the flue
A licensed chimney installer and the authority having jurisdiction decide the flue for your building. Narvi prints CE / T600 on the Kota 15 pages we cite. Those pages do not print a UL listing. We will not invent one. This is not a US 6-inch Class A kit.
Email hello@selfcaresaunas.com with roof type (flat vs pitched) and ceiling height before you order pipe.
FAQ
Are stones included?
No. Kaamos 20 stone load in Narvi’s table is 60 kg / about 132 lb. About 3 boxes of the 20 kg / 44 lb Narvi 10–15 cm carton (narvi-sauna-stones-split-10-15 split-face, or rounded narvi-sauna-stones-rounded-10-15). Round up so you are not short.
Is a chimney included?
No. Order Kota 15 (narvi-kota-basic-flue-15) or have a masonry flue the installer accepts. CE / T600 on Narvi’s Kota 15 pages — not UL.
Is this electric?
No. Wood-burning only. There is no Narvi electric heater in this authorized list.
Is this a complete sauna?
No. Stove only.
US 6-inch Class A?
No. Outlet is 119 mm. The 6-inch adaptor SKU (narvi-pipe-adaptor-6in) is a pipe adaptor, not a listed Class A kit. Installer and AHJ decide.
Chimney water tank?
Optional. 30 L stainless tank narvi-chimney-watertank-30l hangs on a 122 mm connecting flue at least 600 mm long. Do not stack it with the 250×400 stone cage — they occupy the same flue.
Can I check out?
Email hello@selfcaresaunas.com or use chat on this shop if you want flue, tank, stones, and clearances matched first.
Email hello@selfcaresaunas.com if you want the Kota 15 flue, 30 L chimney tank, stones, or a wall/base matched to this stove. A licensed installer reads the Narvi nameplate and IOM.
Questions? Email hello@selfcaresaunas.com.
