Lasi - Modern Sauna
"Great product and excellent support. Wish I bought one sooner."
The "Lasi" sauna features 3 large tempered glass windows and a door that can be moved to either side of the sauna.
✓ In stock — ready to ship
Please Note: The color you select will not be pre applied. All colors must be applied after the build is complete.
No contractor needed — most customers have their sauna up and running over a weekend with a dedicated 240V circuit.
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Scandinavian-Inspired Design
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Exclusively Our Design
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Over 7,500 Happy Customers
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Product Description
Lasi -Modern Outdoor Sauna - Have questions? We have answers! Give us a call 1-877-446-3565
Note: This Sauna model arrives in Natural Thermowood
Effortless Assembly
Step into the luxurious Lasi Sauna, where contemporary design meets traditional warmth. Built with a robust Thermowood structure and featuring our innovative panel construction, this sauna is designed for effortless setup. With just two people, the main structure can be assembled in just a few hours, making it one of the easiest saunas to build.
Panoramic Views and Versatility
The Lasi’s standout feature is its corner window, consisting of three panoramic glass panels and a fully tempered glass door, filling the space with natural light while offering stunning outdoor views. A retractable bench adds versatility, creating extra floor space for stretching, yoga, or simply enjoying a more open atmosphere.
Thoughtful Insulation Design
To ensure optimal heat retention, the wall panels of the Lasi Sauna are fully insulated. The roof and floor have been thoughtfully designed to accommodate insulation as well. However, due to the low cost and accessibility of insulation materials from local hardware stores—and the bulkiness and inefficiency of shipping them across the country—we have chosen not to include roof and floor insulation in the package. This approach allows you to source the insulation locally, saving on unnecessary shipping costs while maintaining excellent thermal performance.
Functional Design Details
Additional thoughtful design elements include a small overhang to keep towels and robes dry and easily accessible. For added flexibility, the door can be installed on either wall, ensuring it seamlessly fits into your outdoor space.
Durable Thermowood Structure
The Lasi’s Thermowood structure offers exceptional durability and weather resistance, making it ideal for outdoor use. Thermowood undergoes a specialized heat treatment process that enhances its natural resistance to moisture, rot, and insects without the use of chemicals. This ensures the sauna withstands harsh climates while maintaining its integrity and appearance, reducing maintenance requirements over time. Learn more about thermowood here.
Comfortable and Modern Interior
The interior is crafted for both comfort and functionality, complementing the Lasi's modern aesthetic. With its panel construction and versatile features, this sauna delivers an unparalleled relaxation experience in a design that’s built to last.
Important Notes
Please note: To comply with local electrical codes and accommodate unique climate conditions, lighting for this unit should be sourced locally. Additionally, the sauna will arrive in an untreated finish, allowing you to choose a treatment best suited to your environment.
Product Specs
Product Diagram
Specifications
| Modern Sauna - LASI | |
| Model | LASI |
| Number of Bather | 4-6 |
| Exterior Materials | Scandinavian Thermally Modified Wood |
| Interior Materials | Scandinavian Thermally Modified Wood |
| Interior Dimensions | 86.61″ L × 86.61″ W × 74.8″ H (2200 mm L × 2200 mm W × 1900 mm H) |
| Exterior Dimensions | 101.18″ L × 101.18″ W × 86.61″ H (2570 mm L × 2570 mm W × 2200 mm H) |
| Window | 3 pc 77.95″ H × 30.71″ W (1980 H × 780 W mm) 1 pc 77.95″ H × 29.53″ W (1980 H × 750 W mm) |
| Window Glass Thickness | 0.315″ (8 mm) |
| Window Glass Style | Clear |
| Door | 23.2″ × 73.2″ |
| Benches | Scandinavian Thermally Modified Wood |
| Interior Lights | Not Included |
| Insulation |
Walls: 50 mm Fully insulated with an integrated panel system delivering an impressive R-8.5 insulation value — included as standard. Roof: Optional upgrade available, using a multi-layered system with a thermal performance of up to R-24.7 for enhanced heat retention in extreme climates. |
| Shipping Dimensions | 100.39″ L × 49.21″ W × 47.24″ H (2550 mm L × 1250 mm W × 1200 mm H) |
| Shipping Weight | 1750 lb (750 kg) |
| Downloads |
Lasi V2 (After Oct 2026) Installation Manual / Packing List Lasi V1 (Before Oct 2026) Installation Manual / Packing List |
Electric Heater Information
Welcome to our Electric Sauna Heater Comparison guide. Here, you'll find an in-depth look at various electric sauna heaters, tailored to help you navigate through the nuances of each model. We've designed this page to assist you in understanding the key features, benefits, and any drawbacks, ensuring you make the most informed decision for your sauna setup. Whether you're prioritizing efficiency, design, or specific functionalities, our comprehensive comparison will lead you to the heater that best aligns with your sauna dreams.
For inquiries or more detailed information about our sauna heaters, feel free to contact us at 877-446-3565. Our team is available to assist you from 8 am to 5 pm PST, Monday through Friday.
TOULE
Available in 6 kW & 9 kW Models: $786 – $949 CAD
For the price point vs quality, it doesn't get much better than this! This heater is the best bang for your buck both in its reliability and the features of this specific model (off-board digital controls, timers, etc.).
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HARVIA KIP
Available in 6 kW & 8 kW Models: $1 199 – $1 399 CAD
Harvia has been the biggest name in sauna heaters for over 70 years! The Harvia FLB model, made by Harvia in Finland, is a traditional Finnish-style wall-mounted sauna heater. What this one lacks in special and aesthetic features; it makes up for in heat and getting the job done.
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Harvia Cilindro
The Harvia Cilindro heater, known for its unique design featuring a massive stone quantity, offers a blend of gentle and powerful steam options. It's ideal for those seeking a versatile sauna experience, capable of creating a traditional sauna atmosphere with the convenience of electric heating.
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With its modern yet traditional functionality, the Harvia Cilindro is perfect for sauna users who enjoy customizing their sauna sessions with varying steam intensity, all while adding a touch of elegance to their sauna space.
HUUM HIVE CLIFF
Available in 6 kW, 9 kW, or 10.5 kW Models
Want a lot of thermal mass but still have a quicker heat-up time? That’s exactly what the HUUM CLIFF delivers. Its tall, open column exposes every stone directly to the elements, so the 165 lb rock load races to temperature faster than bulkier heaters with even more stone. The result is a rich, wood-fired feel powered by clean, reliable electricity—with far less waiting around before you step inside. Sleek, sculptural, and space-saving, the CLIFF turns your sauna wall into an eye-catching accent while surrounding you in deep, lingering warmth.
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HUUM HIVE MINI
Available in 6 kW, 9 kW, or 10.5 kW Models
These are one of our best sellers! The HUUM line of products offers a more traditional sauna experience by limiting metal and increasing total rock surface area. This provides a closer wood-fired experience with the reliability of electricity. Many of our customers prefer the design of the HUUM as it is an accent piece against the backdrop of your high-quality wood sauna.
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HUUM DROP
Available in 6 kW and 9 kW Models
Very similar to the HUUM Hive and HUUM Hive Mini. The HUUM Drop offers a round design that softens and livens up the angular interior of a classic sauna, giving it a touch of elegance. But DROP isn’t only about the looks. This compact wall-mounted heater can actually fit up to 55 kg of stones, exceeding most wood-burning stoves and guaranteeing long-lasting steam.
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Warranty Information
Our wooden saunas come with a 1-year limited warranty. Our Harvia Electric Sauna Heaters and Harvia Sauna Stoves also come with a 1-year limited warranty. Please refer to: https://www.backcountryrecreation.com/pages/warranty