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The Mira Natural Sauna is a compact, modern wooden indoor-outdoor sauna featuring a glass door, an interior wooden bench, a bucket with ladle, and a stone heater, displayed against a plain white background.
Mira Natural Sauna

Made in Estonia

HSA/FSA APPROVED

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Mira Natural Sauna

The Mira Natural Sauna brings traditional sauna heat into a refined cabin designed for indoor or outdoor use.

Built by Auroom with a thermo-spruce exterior and thermo-aspen interior, Mira pairs natural materials with a clear tempered-glass front and integrated LED lighting for a clean, architectural finish.

Paired with the Harvia Spirit heater package, Mira is Wi-Fi connected and app controlled, allowing you to manage temperature remotely and have the sauna ready when you are. Heats up to 194°F.

Available in two sizes: Mira S seats two. Mira L seats up to five.

Harvia Spirit heater package with WiFi and premium sauna accessories included.

For residential use only
Size

Payment options

$19,775.00
HSA/FSA eligible for qualified customers. Learn more
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We handle the heavy lifting. You handle the cold ritual.

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Call us at +1 (888) 414-7363

  • Sauna Heater ($3,500.00)
    Included Included
  • Sauna Pillow
    Included Included
  • Bucket + Ladle
    Included Included
  • Thermometer
    Included Included
  • Sand Timer
    Included Included
  • Sauna Hat
    Included Included
  • Aroma Set
    Included Included
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Frequently asked questions

What is the difference between Mira S and Mira L?

Short answer: Mira S seats two people while the Mira L seats up to five people. The Mira S measures 4.3' x 4.4' x 6.6' inside, with 126 cubic feet of interior volume while Mira L measures 6.3' x 6.4' x 6.6' inside and 267 cubic feet. Construction and finish are identical. The size you choose depends on how many people use the sauna at once.
What is the cabin built from?

The exterior is thermally modified spruce. The interior is thermally modified aspen, chosen for its low resin content and comfortable touch at high heat. The front is 8mm clear tempered glass, set into walls insulated to 6.1 inches.
Is the heater sold separately?

No. Every sauna we offer ships with a Harvia Spirit heater matched to its interior volume: 6kW on Mira S, 8kW on Mira L. Both include the stone bed and a WiFi-enabled touchscreen controller. Both also include the premium accessory set: bucket and ladle, thermometer, hygrometer, sauna hat, and aroma set.
What electrical work does installation require?

Mira S requires a dedicated 240V single-phase circuit at 25 amps. Mira L requires a dedicated 240V single-phase circuit at 33 amps. Both require a licensed electrician for final connection, not a standard household outlet.
How does Mira arrive, and is assembly included?

Mira ships unassembled on freight pallets, crated in wood for protection. It weighs roughly 2,550 lbs for Mira S across two crates and 3,650 lbs for Mira L distributed across two crates, with every structural component, fastener, and finishing material included. We schedule delivery by appointment, and the driver lowers the crate to ground level at curbside. This excludes any path or doorway narrower than 90 inches. The freight company contacts you before the ship date to confirm site access and flag anything that could add cost or complexity. On-site assembly is required; most customers engage a local contractor for assembly and electrical hookup.
Can I control the sauna from my phone?

Yes. The Harvia Spirit heater pairs with a WiFi-enabled touchscreen controller. Temperature can be set and monitored remotely, so the sauna is ready when you arrive.
Is Mira built by Polar Monkeys?

No. The cabin is built by Auroom, a European sauna manufacturer, and paired with the Harvia Spirit heater from Harvia, a Finnish heater manufacturer. Polar Monkeys selects this pairing and ships it directly to your door.
What is covered under warranty, and who handles a claim?

he Auroom cabin carries a 2-year manufacturer warranty from the date of delivery, covering manufacturing and material defects. The Harvia Spirit heater carries its own 2-year warranty, extendable to 3 years for residential use with registration at harvia.com within 30 days of purchase. Both warranties are handled directly with Auroom and Harvia, not with Polar Monkeys; reach out to us if you need help starting a claim.

Let Us Help You!

Speak with a US-Based Product Specialist

Call us at +1 (888) 414-7363

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