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CUSTOM-CUT SAUNAS
BlackWater 4 Person Cube Sauna - Outdoor Saunas
BlackWater 4 Person Cube Sauna - Outdoor Saunas
BlackWater 4 Person Cube Sauna - Outdoor Saunas
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  • BUILD YOUR SAUNA IN 3D BELOW

NEW Blackwater 1-2 Person Mini-Cube Sauna

NEW Blackwater 1-2 Person Mini-Cube Sauna

The NEW BlackWater Mini-Cube brings everything people love about the BlackWater series into a compact, easy-to-place size—perfect for patios, balconies, rooftops, or any small backyard nook. Designed for 1–2 people, it gives you all the premium craftsmanship and relaxing heat you expect from Almost Heaven, just in a footprint that fits almost anywhere.

Choose Rustic Cedar for that classic sauna aroma and natural warmth, or go with a customizable Onyx Stain for a bold, modern look. Its space-saving design and large front window make it feel open and inviting, while the dual-level seating helps you enjoy the perfect sweat every time.

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Build Your Sauna

Visualize your dream sauna in stunning 3D — select your personalize features, and see your exact creation before you buy with our interactive sauna configurator.

  • Choose from optional heaters

  • Explore hotspots to learn about features

  • View the sauna in AR in your own space

  • Customize other options before checkout

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Build Your NEW Blackwater 1-2 Person Mini-Cube Sauna

NEW Blackwater 1-2 Person Mini-Cube Sauna

Lumber Type: Rustic Cedar
Heater: 6kW KIP Heater w/ Dials
$8,679.30
$8,679.30 $12,399.00
Shipping calculated at checkout.

Ask a question

The fields marked * are required.

Explore The NEW Blackwater 1-2 Person Mini-Cube Sauna

The NEW BlackWater Mini-Cube brings everything people love about the BlackWater series into a compact, easy-to-place size—perfect for patios, balconies, rooftops, or any small backyard nook. Designed for 1–2 people, it gives you all the premium craftsmanship and relaxing heat you expect from Almost Heaven, just in a footprint that fits almost anywhere.

Choose Rustic Cedar for that classic sauna aroma and natural warmth, or go with a customizable Onyx Stain for a bold, modern look. Its space-saving design and large front window make it feel open and inviting, while the dual-level seating helps you enjoy the perfect sweat every time.

BlackWater 4 Person Cube Sauna - Outdoor Saunas
BlackWater 4 Person Cube Sauna - Outdoor Saunas
BlackWater 4 Person Cube Sauna - Outdoor Saunas

Buy Now, Pay Later

Start your purchase today with 0% interest for 3 months (if you qualify)!

Need more time? Choose from flexible payment plans of 3, 6, 12, 18, or 36 months with competitive interest rates ranging from 10% to 36% APR, based on approval.

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HSA/FSA Eligible

Save ~30%. Through our collaboration with Truemed, eligible customers can now use Health Savings Account (HSA) or Flexible Spending Account (FSA) funds on Almost Heaven Saunas’ products!

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Limited Lifetime Warranty

Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components.

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Talk to Our Experts

Need help creating the perfect sanctuary? Our experts can answer any questions you have about our products, features and installation to help you make the right choice for your sauna experience.

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Every Kit, Ready to Customize.

Rooted in authentic sauna heritage, our saunas stand apart for their quality and durability. With customizable features and finishes, you can shape every detail to match your lifestyle and space

Aromatic & All-Weather Cedar

Sourced from premium North American cedar, your sauna combines timeless beauty with long-lasting strength. Natural or Onyx finishes let you match your style, while cedar’s calming aroma and natural resilience create a retreat that will last for years outdoors.

Not sure which sauna is right for you?

Indoor or outdoor? Traditional, hybrid or infrared? How many people and which type of heater?

Take our quiz and find the sauna that fits your sanctuary best.

 Take the “Perfect Sauna” Quiz

Choose Your Sauna Experience

Compare different sauna heater types to find your perfect match.

Dry Heat

Dry Heat

Intense, dry heat for traditional Finnish experience

140-194°F (60-90°C)
10-20% Humidity
  • Intense sweating
  • Traditional Finnish style
  • Faster heat-up time
  • Energy efficient
Wet Heat

Wet Heat

Moist, enveloping heat with therapeutic steam

140-194°F (60-90°C)
100% Humidity
  • Deep pore cleansing
  • Respiratory benefits
  • Gentle on beginners
  • Aromatherapy compatible
Infrared Heat

Infrared Heat

Gentle, penetrating heat that warms from within

120-155°F (49-68°C)
Low Humidity
  • Deep tissue penetration
  • Lower operating temperature
  • Improved circulation
  • Longer session comfort
Wood-Burning Heat

Wood-Burning Heat

Authentic, crackling fire with natural wood aroma

150-200°F+ (66-93°C+)
Variable Humidity
  • Traditional experience
  • No electricity required
  • Natural wood fragrance
  • Eco-friendly option

Discover Our Heaters

VIEW ALL SAUNA HEATERS
KIP Digital Smart Heater Kit - Electric Heaters
KIP Digital Smart Heater Kit - Electric Heaters

KIP Digital Smart Heater Kit

From $2,651.00
From $2,651.00 $2,651.00
Virta Heater Smart Heater Kit - Electric Heaters
Virta Heater Smart Heater Kit - Electric Heaters

Virta Heater Smart Heater Kit

From $3,313.00
From $3,313.00 $3,313.00
KIP Heater w/ Dials - Electric Heaters
KIP Heater w/ Dials - Electric Heaters

KIP Heater w/ Dials

From $1,179.00
From $1,179.00 $1,179.00
The Wall Heater - Electric Heaters
The Wall Heater - Electric Heaters

The Wall Heater

From $1,561.00
From $1,561.00 $1,561.00
Club Heater Smart Heater Kit - Electric Heaters
Club Heater Smart Heater Kit - Electric Heaters

Club Heater Smart Heater Kit

From $2,858.00
From $2,858.00 $2,858.00
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6 Essential Sauna Benefits

Discover why saunas are more than just a place to unwind.

True Stories, Real Benefits.

Discover how our partners' lives have been transformed by their Almost Heaven personal sanctuary.
Steven Ogg’s Morning Ritual: Finding Wellness in the Sauna 
How Kara Transformed Her Evening Routine With an Almost Heaven Sauna 
Dalton Risner’s Secret to Recovery: The Power of Sauna 
Matt’s Secret to Balance: Sauna, Cold, and Connection 

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Upgrade Your Sanctuary

Bucket Ladle And Thermometer Package - Accessories

Bucket, Ladle, And Thermometer Package

$128.00
$128.00 $128.00

For an authentic Finnish sauna experience, this bucket, ladle, and thermometer set is essential. Use the ladle to pour water over hot stones, creating löyly—the rejuvenating steam that defines a traditional sauna. The chrome thermometer/hygrometer tracks temperature and humidity in F° and C°, while its heat-resistant metal frame and glass front ensure durability.

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Blizzard Sauna Stones 22lbs - Accessories

Blizzard Sauna Stones 22lbs

$168.00
$168.00 $168.00

Offering a fresh and clean look, these eye-catching stones add a decorative look to your sauna. Used only as the top layer of sauna stones, these stones will be a centerpiece in your Almost Heaven Sauna!

Note: Each box of stones weighs 22lbs and are only available for our Virta heaters. These stones are meant to be added as a decorative layer in addition to your existing sauna stones and are not meant to be placed directly on the elements.

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Cedar Sauna Accessories Set - Accessories

Cedar Sauna Accessories Set

$454.00
$454.00 $454.00

The cedar accessory set provides you with all of our best-selling accessories in one bundle! It includes the back rest, leg lift, drink shelf, magazine rack, and robe hook. All accessories are made from the same decorative and durable red cedar lumber and fit perfectly with any of our outdoor or indoor saunas. This collection is your best value for an upgraded sauna experience. Feel supported and at ease with the help of our cedar accessory set.

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Sauna Robe Hook - Accessories

Sauna Robe Hook

$58.00
$58.00 $58.00

The robe hook offers a convenient place to hang your towel or robe while you enjoy the sauna heat. The red cedar robe hook is easily installed in any of our indoor or outdoor saunas on a flat surface. This simple and durable hook is made to go on the interior or the exterior of your sauna, wherever you choose and is most convenient for you. If you can't choose, purchase a few hooks so that you will always have your towel within reach!

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Sauna Waffle Robe - Comfort & Accessories

Sauna Waffle Robe

$214.00
$214.00 $214.00

The Almost Heaven Saunas long waffle robe is the perfect companion for your sauna experience. Made from a soft, breathable cotton blend, it’s quick-drying and moisture-wicking, keeping you comfortable before, during, and after your sauna. The lightweight, waffle texture promotes airflow, while the double-stitched durability ensures it stands the test of time. Enjoy both comfort and practicality with a robe that’s designed for your sauna and beyond.

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Outdoor Sauna FAQs