Experience authentic finnish sauna rituals in a premium outdoor retreat
Transform your backyard into a dedicated wellness space with the InnerLight Demfin 6 Person Traditional Outdoor Sauna. Designed to comfortably accommodate up to six people, this premium outdoor sauna combines authentic Finnish sauna bathing with durable outdoor construction and timeless aesthetics. Featuring a Harvia 6kW hot-stone stove, premium Western Red Cedar interior, and weather-resistant aluminium exterior, the Demfin 6 delivers a traditional sauna experience that can be enjoyed year-round.
Built specifically for outdoor living, the Demfin 6 requires no cover to withstand rain, heat, humidity, and changing seasons. Its spacious two-level L-shaped seating layout creates a comfortable environment for relaxing, socialising, and enjoying the soothing warmth of traditional sauna bathing.
How does the Demfin 6 Person Traditional Outdoor Sauna achieve this?
The Demfin 6 combines premium construction materials with a genuine Finnish-style Harvia hot-stone stove to create consistent, even heat throughout the cabin. The 6kW heater warms the sauna while natural cedar interiors help create the traditional sauna atmosphere many users love. The spacious multi-level seating design allows users to choose their preferred heat zone, while the weatherproof aluminium exterior ensures reliable outdoor performance in Australian conditions.
Features and Benefits:
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Harvia 6kW Traditional Hot-Stone Stove: Provides authentic Finnish sauna heat with traditional sauna stones, creating a classic sauna experience and atmosphere.
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Premium Western Red Cedar Interior: Delivers a warm, natural aesthetic while creating a comfortable and inviting sauna environment.
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Weather-Resistant Aluminium Exterior: Built to withstand outdoor conditions year-round without requiring additional cover, helping protect your investment from the elements.
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Spacious L-Shaped Multi-Level Seating: Comfortably accommodates up to six people while allowing users to select different seating heights and heat levels for added comfort.
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Premium Outdoor Construction: Features a slanted aluminium roof, heavy-duty aluminium door frame, and robust handle system designed for long-term outdoor durability and performance.
Product Specifications:
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Capacity: Up to 6 people
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Dimensions: 180cm (W) × 160cm (D) × 209cm (H)
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Internal Height: 185cm
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Interior Material: Premium Western Red Cedar
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Seating Configuration: Two-level L-shaped bench layout with cedar backrest
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Exterior Material: Scratch-resistant aluminium cladding
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Roof: Slanted aluminium roof
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Lighting: Explosion-proof LED lighting system with ambient headrest strip
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Heater: Harvia 6kW Traditional Hot-Stone Stove
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Power Requirement: 6000W Single Phase
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Electrical Connection: Hard-wired installation required
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Installation: Licensed electrician required
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Outdoor Use: Yes
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Weatherproof: Yes
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Cover Required: No (optional cover available)
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Optional Upgrade: Harvia Fenix WiFi Controller
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Warranty:
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Structure and Main Components: 10 years for residential
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Electrical and Heating Components: 10 years for residential
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Traditional Stove Heaters: 12 months for residential
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Outdoor Sauna Floors: 2 Years
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Parts: 10 Years
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Labour and Shipping: 1 Year
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All components: 12 months for commercial use.
User Manual: InnerLight Demfin 6 Person Traditional Outdoor Sauna User Manual, InnerLight Demfin 6 Person Traditional Outdoor Sauna Heater Manual
Inclusions:
- InnerLight Demfin 6 Person Traditional Outdoor Sauna
- Harvia 6kW Traditional Hot-Stone Stove
- Premium Western Red Cedar interior
- L-shaped multi-level seating system
- Cedar backrest
- Explosion-proof LED lighting system
- Aluminium exterior cladding
- Slanted aluminium roof
- Heavy-duty aluminium door frame and handle
- Installation instructions
Customer Reviews:
"Very satisfied. Took a while to get it but we expected that. Was kept u to date regularly and very helpful when we followed up. When it arrived in the country very quick and installed really well. The quality is high, very manual but easy to use!! Heats up quick too." — Tony M., April 2026
Frequently Asked Questions:
Q: Can the Demfin 6 sit outside in full rain?
A: Yes. The Demfin 6 is designed for outdoor use and features a weather-resistant aluminium exterior, tempered safety glass, and sealed construction to withstand rain, heat, humidity, and cold conditions.
Q: Does the sauna require a cover?
A: No. The sauna is designed to be used without a cover. However, an optional cover is available if you would like additional protection.
Q: What power supply does the Demfin 6 require?
A: The Demfin 6 requires a dedicated 6000W single-phase electrical connection and must be hard-wired by a licensed electrician. It does not operate from a standard power plug.
Q: Can I install the sauna indoors?
A: Yes. Although designed for outdoor use, the Demfin 6 can also be installed indoors provided it is placed on a suitable hard, level surface.
Q: What surface should the sauna be installed on?
A: The sauna should be installed on a hard, flat, level surface such as concrete, pavers, or decking with adequate drainage underneath.
Q: How long does it take to heat up?
A: Heat-up time varies depending on ambient conditions, but as a guide, allow approximately 30 minutes before use. In colder weather it may take slightly longer.
Q: How do I clean the sauna?
A: Wipe interior surfaces with a damp cloth after use to help maintain the cedar timber. The aluminium exterior and glass can be cleaned using a damp microfibre cloth.
Q: Is there a WiFi control option available?
A: Yes. The sauna can be upgraded with the optional Harvia Fenix WiFi Controller, allowing enhanced control functionality.
Q. What's not covered in warranty?
A. Silicone Maintenance (Outdoor Models): Owners are responsible for maintaining external silicone seals around windows and doors.
It is the customer’s responsibility to check the integrity of the silicone every 12–18 months and reapply outdoor-grade silicone if required.
Failure to maintain these seals may lead to water ingress, which is not covered under warranty.
Water Damage & Drainage: Damage caused by standing water, flooding, poor site drainage, or blocked drains is not covered.
All saunas must be installed on a hard, level, well-drained surface to avoid water ingress or pooling underneath.
The sauna floor and base are designed to handle normal humidity and light splashing but are not waterproof.
Any damage caused by flooding, inadequate drainage, or improper installation is considered site-related and not a manufacturing defect.
General Wear & Tear: Natural aging, fading, or weathering of timber and finishes caused by exposure to sunlight, humidity, or temperature variations.
Misuse or Neglect: Damage resulting from improper installation, electrical overloading, water exposure, or failure to follow care instructions.
Accidental Damage: Cracked glass, dents, or impact damage from misuse.
Unauthorised Repairs or Modifications: Any work or alteration carried out by non-approved technicians will void the warranty.
Electrician’s Note:
The power connection point is located at the top rear centre of the sauna, so ensure cable access is prepared before installation.
Installation
Installation options available in some areas. Contact us for further information.
Note: The sauna is recommended to be covered when not in use.
Lead Time:
In stock but almost sold out
Shipping Time:
2–5 business days within Australia
Secure yours today:
With authentic Finnish-style heat, premium Western Red Cedar craftsmanship, and weather-resistant outdoor construction, the InnerLight Demfin 6 offers a spacious and inviting space to relax, unwind, and enjoy traditional sauna bathing year-round. Click the Add to Cart button today and create your own outdoor sauna retreat at home.
