Leil Saunas Viva 120 - 2 Person Outdoor Traditional Sauna Kit
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An Important Note on Pricing and Returns:
We believe in upfront pricing and fair policies—no hidden fees, no surprises, and easy,
transparent returns. If you're comparing options, we encourage you to review
competitors’ fine print carefully.
We've helped countless customers who had issues elsewhere, and we’re here to make sure
that never happens to you.
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LEIL VIVA 120
1-Person Outdoor Sauna Kit
Compact outdoor sauna comfort, built for daily personal wellness.
The Viva 120 is a compact 1-person outdoor sauna designed for private relaxation in small outdoor spaces. Built entirely from 40mm ThermoWood® with a durable EPDM roof system, it delivers reliable weather resistance, natural insulation, and authentic Nordic sauna performance in a minimal footprint.
Its intelligently designed ventilation system ensures steady airflow and balanced heat circulation, while the thermo-alder bench provides a smooth and comfortable seating experience for solo sessions. The compact layout makes it ideal for patios, terraces, and backyard wellness corners.
Designed for fast DIY installation, the modular structure allows straightforward assembly on a level surface, making it an accessible entry point into authentic outdoor sauna living.
Nordic sauna tradition, refined for personal outdoor escape.
A private sauna experience, built for the outdoors.
The Viva 120 brings authentic Nordic sauna tradition into a compact outdoor format designed for solo wellness. Built for one person, it creates a fully private retreat that fits naturally into patios, terraces, and small garden spaces without compromising performance or comfort.
Crafted entirely from 40mm ThermoWood® and paired with a durable EPDM roof system, it is engineered to withstand outdoor conditions while maintaining stable heat performance. The thermo-alder bench adds natural comfort with a smooth, low-heat seating surface ideal for daily use.
Its smart three-point ventilation system ensures continuous airflow, balanced heat circulation, and efficient steam retention — delivering a consistent sauna experience in a compact footprint designed for modern outdoor living.
- 40mm ThermoWood® construction for durability and insulation
- Compact 1-person layout for private sauna sessions
- EPDM weatherproof roof for outdoor protection
- Thermo-alder bench for smooth, comfortable seating
- Three-point ventilation system for balanced airflow
- Optimized heat circulation for warm feet and even löyly
Technical Specifications
Every measurement, material, and system detail.
Which heater fits the Viva 120 — Harvia or HUUM?
Harvia KIP80W 8.0 kW
High-Power Option- Best for: Faster heat-up times and colder outdoor climates
- Output: 8.0 kW — more than enough for ~2.7 m³ (95 ft³) volume
- Control: Built-in mechanical controls (simple manual operation)
- Style: Traditional compact wall-mounted sauna heater design
- Why it works: The Harvia KIP80W delivers strong, fast heating performance, making it ideal for users who want quick sauna readiness and maximum heat intensity in outdoor conditions. It is robust, reliable, and widely used in residential sauna setups.
HUUM DROP 6.0 kW
Premium Option- Best for: Design-focused outdoor sauna experience with smoother steam
- Output: 6.0 kW — optimized match for ~2.7 m³ (95 ft³) sauna volume
- Control: UKU controller (Wi-Fi optional for remote preheating)
- Style: Modern sculptural design with high stone capacity
- Why it works: The HUUM DROP produces a softer, more even löyly (steam) due to its high stone mass and slower heat curve. It is ideal for users prioritizing a premium sauna experience, balanced heat, and aesthetic design.
Will it fit your space? We’ll help you plan it right.
The Viva 120 is a compact 1-person outdoor sauna designed to fit comfortably in small outdoor spaces such as patios, terraces, and private garden corners. Its narrow footprint and tall vertical profile maximize internal comfort while minimizing ground space requirements. Proper clearance should be allowed around the unit for ventilation, roof drainage, and safe heater operation.
One person build. Half day setup.
The Viva 120 arrives as a precision-engineered outdoor sauna kit designed for straightforward DIY assembly. Its modular ThermoWood® structure and pre-finished components allow most of the build to be completed using basic tools. The EPDM roof system and ventilation setup are integrated for long-term outdoor durability. Final heater connection must always be completed by a licensed electrician for safe operation.
One to two people recommended. Basic tools required (drill, level, screwdriver). No heavy machinery needed.
What’s in the Kit
The Viva 120 kit includes pre-cut, pre-finished outdoor-rated components designed for fast and accurate assembly with minimal complexity.
- 40mm ThermoWood® wall, floor, and ceiling panels (precision modular system)
- Stave-built ThermoWood® roof structure with EPDM waterproof membrane
- Bronze-tempered glass door with black hardware set
- Thermo-alder bench and backrest system
- Integrated 3-point ventilation system (intake, exhaust, drying vent)
- Adjustable ventilation components for airflow control
- Roof drainage-ready structure with weather sealing
- Complete fastener kit, seals, and mounting hardware
- Step-by-step illustrated installation manual
Installation Steps
Prepare Outdoor Base
Install the sauna on a flat, level, and load-bearing outdoor surface such as concrete, pavers, or a reinforced deck. Ensure proper drainage and allow clearance around the structure for ventilation and roof runoff.
Unpack & Organize Components
Unpack all labeled components and verify them against the checklist. Organize wall panels, roof elements, and interior components in assembly order for a smooth build process.
Assemble Base & Wall Structure
Assemble the base frame first, then install ThermoWood® wall panels in sequence. Secure all joints tightly to ensure structural rigidity for outdoor conditions.
Install Roof, Door & Interior Bench
Fit the EPDM-sealed roof system, install the bronze glass door with hardware, and mount the thermo-alder bench and backrest inside the cabin.
Licensed Electrician Connects Heater
The sauna heater must be installed by a licensed electrician. The Viva 120 supports compatible electric sauna heaters (6.0–8.0 kW range depending on selection). All wiring must follow local outdoor electrical codes and safety standards.
Initial Heat Cycle & Wood Conditioning
Run a first heat cycle with ventilation open to allow ThermoWood® and thermo-alder materials to acclimate. A natural wood aroma is expected and will diminish after initial use.
Yes, it runs on 240V —
and it’s built for outdoor performance.
The Viva 120 uses a standard residential 240V hardwired sauna heater circuit, similar to an electric oven or dryer. Depending on your heater selection — typically 6.0 kW HUUM DROP or 8.0 kW Harvia KIP80W — the system requires a dedicated 30–40 amp breaker. Its 2.7 m³ interior volume is compact and highly efficient, allowing fast heat-up times and strong, consistent sauna performance even in outdoor conditions.
From our warehouse to your driveway.
The moment you order, your concierge rep is assigned and your shipment starts moving. We monitor every stage so you don't have to. Fully insured, with a scheduled delivery appointment so nothing arrives when you're not home.
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Good luck getting
Costco on the phone.
Most $8,000 purchases come with a phone tree. Ours comes with a person. When something goes sideways — a lost shipment, a freight delay, a damaged panel, a question at 9 PM on a Wednesday — you text us. We text back. Same day, often the same hour. We call the manufacturer. We chase the freight company. We solve the problem while you go on with your life. That's what we mean by boutique concierge service. It's the difference between buying a sauna and being supported through one.
Lost in Transit
If your shipment goes missing, we're on the phone with the freight carrier before you even know there's a problem. You don't chase anyone. We do.
Shipping Delays
You hear about delays from us, before you wonder. We monitor every shipment, every day, until it's in your driveway.
Manufacturer Defect
If a panel arrives damaged or a heater malfunctions, we escalate directly to Leil, HUUM, or Harvia on your behalf. You don't make a single warranty call. We handle the back-and-forth.
A Question at 9 PM
Text us. Email us. Call us. You get a real answer from a real person — not a chatbot, not a ticket number, not a 48-hour response window.
We're not the cheapest box on the internet. We're the team that picks up the phone after the box is in your driveway. That's what we stand behind — every order, every customer, every day.
Call (605) 702-4868Yes, it is outdoor rated. Built specifically for year-round outdoor use.
The Leil Viva 120 is engineered as a fully outdoor-rated personal sauna designed to withstand rain, snow, wind, and seasonal temperature changes. Its 40mm ThermoWood® structure, EPDM-sealed roof system, and weather-resistant detailing ensure long-term durability in exposed environments while maintaining stable sauna performance for daily use.
The 40mm ThermoWood® frame is thermally modified for enhanced resistance to moisture, decay, and temperature fluctuations, making it ideal for long-term outdoor exposure.
A durable EPDM membrane seals the stave-built roof, providing complete protection against rain and snow while ensuring long-term weatherproof performance.
The interior bench and backrest are made from thermo-alder, selected for stability and comfort in heated environments, even with outdoor temperature shifts.
All joints and panel connections are engineered for outdoor durability, maintaining structural integrity under wind load, humidity, and seasonal movement.
Intake, exhaust, and drying vents are designed to regulate airflow in outdoor conditions, preventing moisture buildup and ensuring consistent oxygen circulation.
The compact 2.7 m³ cabin volume heats quickly and retains temperature efficiently even in cold outdoor climates, making it ideal for year-round use.
Weather-resistant outside. Natural comfort inside.
The Viva 120 uses a premium outdoor-rated dual-wood system engineered for long-term exposure and high-heat sauna performance. ThermoWood® forms the entire structural shell, delivering excellent stability against moisture, temperature shifts, and seasonal weather, while thermo-alder is used for the interior bench to provide smooth, comfortable seating during intense sauna sessions.
ThermoWood® — 40mm Structural Frame
The outer shell is constructed from thermally modified softwood, treated at high temperatures to reduce moisture absorption and enhance dimensional stability. This process improves resistance to rot, warping, and outdoor climate exposure, ensuring long-term durability in all seasons.
Thermo-Alder — Interior Seating
The bench and backrest are crafted from thermo-treated alder, chosen for its smooth grain and low heat retention. It remains comfortable against skin even at high sauna temperatures, making it ideal for daily personal use.
Outdoor Durability Engineering
Designed specifically for outdoor environments, the wood system is built to handle rain, snow, UV exposure, and humidity changes while maintaining structural integrity and appearance over time.
Efficient Heat Retention
ThermoWood® provides strong insulation and heat retention within the compact 2.7 m³ cabin, while thermo-alder ensures seating surfaces remain comfortable, creating a balanced and efficient personal sauna experience.
Open the crate. Everything is pre-cut and ready for assembly.
The Viva 120 ships as a complete outdoor sauna kit with all structural components pre-cut, pre-finished, and clearly labeled for fast DIY installation. The heater is selected separately (typically 6.0 kW HUUM DROP or 8.0 kW Harvia KIP80W depending on configuration) and may include stones and control systems based on the chosen package.
ThermoWood® Outdoor Structural Kit
40mm ThermoWood® wall, floor, and ceiling panels — precision-cut modular components designed for weather resistance, strength, and fast outdoor assembly.
Heater (Selected Configuration)
Compatible with HUUM DROP 6.0 kW or Harvia KIP80W 8.0 kW outdoor sauna heaters. Includes stones and mounting accessories depending on selected package.
Thermo-Alder Bench System
Ergonomic thermo-alder bench and backrest designed for 1-person comfort with smooth, low-heat surface performance for direct skin contact.
Complete Outdoor Hardware Pack
Heavy-duty fasteners, weather-resistant screws, sealing strips, ventilation components, and all mounting hardware required for outdoor-rated structural assembly.
Bronze Glass Door System
Outdoor-rated bronze tempered glass door with black metal hinges and handle set, engineered for heat retention and weather durability.
Installation Manual
Step-by-step illustrated guide covering assembly, outdoor leveling, roof sealing, ventilation setup, and heater installation overview.
Frequently Asked Questions
Everything you need to know before ordering your sauna.
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