SaunaCosts

Finnleo NorthStar NSO-57 Outdoor Sauna

Traditional

Capacity
5 persons
Heater power
6 kW
Warranty
5 yr
Verified price
$16,200

Specifications

Capacity5 persons
Heater power6 kW
Warranty
what this meansThe warranty term the manufacturer publishes, in years. Some makers instead warrant the sauna structure for the life of the original owner, which this column shows as "Limited lifetime"; that is a different promise from a fixed number of years and covers the shell rather than the heater, so the two are not ranked against each other.
5 yr
Exterior dimensions
what this meansThree figures as the manufacturer publishes them. The source does not name which is width, depth or height, so this site does not label them either.
84" W x 84" H x 60" D; with roof at largest dimensions 100" W x 87 7/8" H x 84" D
Power requirements240V / 30AFinnleo publishes a 240V 30 amp circuit for this model. The 6 kW heater computes to 25 amps of draw, which the 125 percent rule pairs with a 31.25 amp minimum, normally a 35 or 40 amp breaker; the maker nonetheless specifies 30 amps, and the maker installation manual governs the install. Check it on the calculator.
WoodNordic White Spruce, interior and exterior
PlacementOutdoor

Practical numbers

Power circuit
240V / 30A; needs a 240 V circuit; an electrician typically installs a dedicated line
Cost per one-hour session
About $1.11 at the national average residential rate (May 2026); heater power times session length times your electricity rate

Trade-offs

  • Verified price of $16,200 is higher than 95 percent of the 330 models that list one (median: $5,707).

These are measurements against the rest of the database, not a verdict. Nothing else about this model reads as unusual for its class.

Price check

Retail pricing observed in public listings as of August 22, 2026:

$16,200.00 at Finnish Sauna Builders, the only verified listing.

Seller names appear without links: this site links out only through reviewed partner programs, and none covers these sellers yet.

Prices move often and can vary by configuration; always confirm the current price with the retailer.

Budgeting the full project? Get the free worksheet further down this page.

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Where this model is listed

This model is listed in these categories:

That is everything this database holds on the Finnleo NorthStar NSO-57 Outdoor Sauna: every figure above is verified against a primary source or left blank. Compare it against the rest, or see the others in 5 person and larger saunas.

Prices and specifications verified August 22, 2026, and re-checked weekly after that. How these numbers are checked.