LEIL COMO 3-180
3-Person Indoor Sauna Kit
Compact luxury, built for daily indoor wellness.
The Como 3-180 brings Nordic sauna craftsmanship into a refined indoor format designed for modern homes. Built from 40mm Thermowood® with smooth Aspen interiors, it delivers stable heat retention, ergonomic comfort, and a clean architectural presence for up to three users.
Designed for easy installation in a single day, the modular system includes adjustable feet for leveling, integrated ventilation, and an insulated ceiling for efficient heat performance in indoor environments.
Nordic sauna tradition, refined for modern homes.
A true sauna experience, designed for indoors.
The Como 3-180 is built for people who want authentic sauna heat without compromising indoor space or design. Its 40mm Thermowood® structure ensures strong thermal performance, while the Aspen interior creates a smooth, comfortable environment for shared sessions.
Every detail is designed for balance — from the insulated ceiling panels that lock in heat, to the adjustable ventilation system that keeps airflow fresh and controlled. It delivers a spa-level experience inside a compact home footprint.
- 40mm Thermowood® walls for insulation and durability
- Ergonomic Aspen benches and backrest
- Insulated 2-piece ceiling for heat retention
- Adjustable ventilation for fresh indoor airflow
Technical Specifications
Every measurement, material, and system detail.
Which heater fits the Como 3-180 — Harvia or HUUM?
HUUM DROP 6.0 kW
Premium Option- Best for: Design-focused indoor sauna setups with premium steam experience
- Output: 6.0 kW — ideal match for ~4.0 m³ (141 ft³) sauna volume
- Control: UKU controller (Wi-Fi optional for remote preheating)
- Style: Modern drop-shaped design with large exposed stone capacity
- Why it works: The HUUM DROP delivers a softer, more even löyly (steam) due to its high stone mass relative to heater size. It creates a slow, consistent heat curve that enhances long sauna sessions and is ideal for users prioritizing experience and design.
Harvia KIP45B (4.5 kW)
Simple & Reliable- Best for: Efficient everyday indoor sauna use
- Output: 4.5 kW — suitable for smaller-load or energy-efficient heating cycles
- Control: Built-in mechanical controls (no external controller required)
- Style: Classic wall-mounted stainless steel heater design
- Why it works: A compact and highly reliable Finnish heater known for durability and ease of use. It heats quickly, is simple to operate, and requires no smart controller or additional setup complexity. Best suited for users who want straightforward performance.
Will it fit your space? We’ll help you plan it right.
Share your room or wellness space measurements and we’ll map out exactly how the Como 3-180 fits—including door clearance, ventilation spacing, and optimal placement for heater safety. Ideal for bathrooms, home spas, or dedicated indoor wellness areas.
One to two people. One day build.
The Como 3-180 arrives as a precision-cut, pre-finished indoor sauna kit designed for straightforward home installation. Most of the structure can be assembled with basic tools, while the heater connection must be completed by a licensed electrician to ensure safe and compliant operation.
Two people recommended. Drill, level, screwdriver, and basic hand tools required. No heavy machinery needed.
What’s in the Kit
All components are pre-cut, pre-finished, and designed for modular indoor assembly. Hardware, ventilation components, and full installation documentation are included.
- 40mm Thermowood® wall panels (precision pre-cut modules)
- Insulated two-piece Thermowood® ceiling system (15mm cladding)
- Tempered glass door with premium black hardware set
- Aspen benches and ergonomic backrest system
- Adjustable leveling feet for indoor floor stability
- Integrated ventilation module (adjustable ceiling vent)
- Complete fastener kit, seals, and mounting hardware
- Step-by-step illustrated installation manual
Installation Steps
Prepare Indoor Location
Select a flat, stable indoor surface such as tile, sealed concrete, or reinforced flooring. Ensure adequate ceiling clearance and allow access space around the unit for ventilation and maintenance.
Unpack & Organize Components
Unpack all labeled components and verify them against the included checklist. Arrange panels in assembly order to streamline the build process and ensure correct alignment.
Assemble Base & Wall Structure
Install the base frame and leveling feet first, then connect Thermowood® wall panels sequentially. Lock all structural joints securely to ensure stability.
Install Ceiling, Door & Interior Benches
Mount the insulated ceiling panels, install the tempered glass door system, and secure the Aspen bench and backrest inside the sauna cabin.
Licensed Electrician Connects Heater
The sauna requires a dedicated electrical connection based on the selected heater (Harvia KIP45B or HUUM DROP 6.0 kW). A licensed electrician must complete wiring to ensure compliance with local electrical codes and safe operation.
Initial Heat Cycle & Material Stabilization
Run the first heating cycle with light ventilation to allow the Thermowood® and Aspen materials to acclimate. A mild natural wood scent is expected and will fade after initial use.
Yes, it runs on 240V —
and it’s sized for comfort.
The Como 3-180 uses a standard residential 240V hardwired sauna heater circuit, similar to an electric oven or dryer. Depending on your heater choice — Harvia KIP45B (4.5 kW) or HUUM DROP 6.0 kW — the system typically requires a dedicated 25–40 amp breaker. Its 4.0 m³ interior volume is efficiently heated, balancing fast warm-up with stable long-session performance.
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) 702-4868Not outdoor rated. Designed exclusively for indoor use.
The Leil Como 3-180 is engineered specifically as an indoor sauna and is not rated for outdoor installation. Its Thermowood® structure, Aspen interior, and insulated ceiling system are all designed for controlled indoor environments where temperature, humidity, and airflow remain stable. When used indoors, it delivers consistent heat performance, efficient energy use, and long-term material durability.
The 40mm Thermowood® frame is engineered for heat stability and humidity resistance inside controlled environments, not for exposure to rain, snow, or UV weather cycles.
Aspen benches and backrest are optimized for dry indoor sauna conditions, offering smooth, low-heat contact surfaces ideal for extended sessions.
The dual-layer Thermowood® ceiling (15mm cladding) is built to retain heat efficiently within enclosed indoor spaces, improving energy performance.
Adjustable leveling feet are designed for tile, sealed wood, or concrete indoor flooring, ensuring stability and proper alignment.
Integrated adjustable ceiling vent is designed for indoor air exchange and can connect to home ventilation systems for fresh airflow control.
Every material and component is optimized for stable indoor heating cycles, ensuring consistent löyly (steam) and efficient heat retention in enclosed environments.
Structural strength outside. Soft comfort inside.
The Como 3-180 uses a premium dual-wood system engineered specifically for indoor sauna performance. Thermowood® forms the structural shell, delivering long-term stability under repeated heat cycles, while Aspen is used for all interior seating surfaces to ensure a smooth, cool-touch, and comfortable sauna experience for up to three people.
Thermowood® — 40mm Structural Frame
The sauna’s outer shell is constructed from thermally modified softwood, treated at high temperatures to reduce moisture absorption and increase dimensional stability. This process improves resistance to warping and ensures consistent performance in indoor heat environments over long-term use.
Aspen — Interior Seating & Backrest
All benches and backrests are crafted from kiln-dried Aspen, selected for its smooth grain and extremely low heat retention. Even at high sauna temperatures, Aspen remains comfortable to the touch, making it ideal for extended relaxation sessions.
Indoor Stability Engineering
Designed exclusively for controlled indoor environments, the wood system performs best where humidity and temperature are stable. This eliminates exposure risks from rain, UV, or freeze-thaw conditions and ensures long-term material integrity.
Balanced Heat Performance
Thermowood® helps retain and distribute heat efficiently through the cabin, while Aspen prevents excessive surface heat buildup on seating areas, creating a balanced and comfortable sauna experience.
Open the crate. Everything is pre-cut and ready for assembly.
The Como 3-180 ships as a complete indoor sauna kit with all structural components pre-cut, pre-finished, and clearly labeled for fast installation. Heater is selected separately (Harvia KIP45B or HUUM DROP 6.0 kW) and may include stones and control systems depending on configuration.
Thermowood® Structural Kit
40mm Thermowood® wall panels, base frame, and ceiling components — precision cut and labeled for accurate indoor assembly.
Heater (Selected Configuration)
Harvia KIP45B 4.5 kW or HUUM DROP 6.0 kW depending on package selection. Includes stones and required mounting accessories (HUUM option includes UKU controller depending on bundle).
Aspen Interior Bench System
Ergonomic Aspen benches and backrest designed for 3-person comfort with smooth, low-heat retention surfaces for safe direct skin contact.
Complete Hardware Pack
Fasteners, screws, brackets, sealing strips, ventilation components, and all installation hardware required for full indoor assembly.
Tempered Glass Door System
Premium tempered glass door with black hinges and handle set, pre-engineered for indoor humidity and heat performance.
Installation Manual
Detailed step-by-step guide with diagrams covering assembly, leveling, ventilation setup, and heater installation overview.
Frequently Asked Questions
Everything you need to know before ordering your sauna.
Manuals & Resources
Everything you need for assembly, electrical, and ongoing maintenance — in one place.
Them
Returns & Warranty
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