BUILD YOUR SAUNA IN 3D BELOW
BlackWater 4 Person Cube Sauna
BlackWater 4 Person Cube Sauna
Made from premium cedar, seats up to four with dual-level benches. Black-framed windows provide natural light, creating a seamless indoor-outdoor feel, with a roofing kit and tempered glass door for scenic views.
Features
Features
Lumber: Ball and socket lumber: 1 ⅜″ thick
Glass: Any glass is tempered
Hardware: Stainless steel bands, hinges, and fasteners
Lighting: Interior LED light
Accessories: Sauna stones included
Shipping
Shipping
Specifications
Specifications
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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.
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Choose from optional heaters
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Explore hotspots to learn about features
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View the sauna in AR in your own space
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Customize other options before checkout
Build Your BlackWater 4 Person Cube Sauna
BlackWater 4 Person Cube Sauna
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Explore The BlackWater 4 Person Cube Sauna
Made from premium cedar, seats up to four with dual-level benches. Black-framed windows provide natural light, creating a seamless indoor-outdoor feel, with a roofing kit and tempered glass door for scenic views.
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.
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!
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.
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.
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.
Heaters — The Heart of the Sauna
Every sauna comes with a trusted Harvia heater from Finland. Choose electric for convenience or wood-burning (select outdoor models) for a traditional, fire-fueled experience. Both deliver consistent heat and an authentic sauna session.
Stones Bring Authentic Steam
Sauna stones are the heart of the löyly, producing the soothing steam that defines an authentic sauna session. Paired with a Harvia heater, the stones store and release heat evenly, creating a restorative experience every time you pour water over them.
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.
Choose Your Sauna Experience
Compare different sauna heater types to find your perfect match.
Dry Heat
Intense, dry heat for traditional Finnish experience
- Intense sweating
- Traditional Finnish style
- Faster heat-up time
- Energy efficient
Wet Heat
Moist, enveloping heat with therapeutic steam
- Deep pore cleansing
- Respiratory benefits
- Gentle on beginners
- Aromatherapy compatible
Infrared Heat
Gentle, penetrating heat that warms from within
- Deep tissue penetration
- Lower operating temperature
- Improved circulation
- Longer session comfort
Wood-Burning Heat
Authentic, crackling fire with natural wood aroma
- Traditional experience
- No electricity required
- Natural wood fragrance
- Eco-friendly option
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6 Essential Sauna Benefits
Discover why saunas are more than just a place to unwind.
Save up to $375 on Your Sauna Oasis!
Start your journey on the good foot with 5% off your first sauna! Plus, join our passionate community of wellness seekers and get exclusive tips, expert advice and early access to unmissable offers.
