Spirit One Large detail 1
    Sea and Sand

    Where architecture meets ritual

    The Steam Spirit modular hempcrete sauna is shaped as a simple, archetypal form – compact, grounded, and calm. Its restrained architecture allows the ritual inside to remain central.

    Built from hempcrete, timber, and thermo-treated alder, the structure balances material performance with sensory experience. Walls breathe. Heat stabilises. Surfaces remain warm and tactile. A carefully framed window connects interior ritual with forest, sky, and light – not to dominate the space, but to quietly anchor it.

    This is architecture reduced to essentials: structure, warmth, stillness.

    Spirit One Large

    from € 66,000.00 excl. VAT

    (Excluding delivery)

    Exterior finish

    Interior walls

    Interior tiles

    Sauna heater

    Extras

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    Financing solutions may be available to support your project.

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    Spirit One Large

    Enjoy a sauna that accommodates up to 6 people and provides seating space for rest in-between heating sessions.

    Product details

    Fits6 people
    LengthLength: 5.74 m
    WidthWidth: 2.66 m
    HeightHeight: 3.16 m
    Height w/ chimneyHeight w/ chimney:3.71 m
    Total footprintTotal footprint: 15.3 m²
    Sauna roomSauna room: 5.1 m²
    AnteroomAnteroom: 3.8 m²

    Structure

    Precision-cut timber frame

    Interior

    Thermo wood walls, ceiling and bench with optional cushions

    Insulation

    Hempcrete – combination of lime and hemp-derived walls, floor, roof

    Doors

    Integrated insulated wooden doors

    Exterior

    Walls and roof – vertical spruce shingle cladding

    Ventilation

    Passive ventilation

    Windows

    Triple-glazed panoramic tempered windows

    Utilities

    Interior and exterior LED lighting

    Sustainability

    Breathable timber frame with natural hemp insulation and non-toxic finishes

    Hempcrete – a better way to build

    The material is CE marked and complies with EU construction standards.

    100% natural material

    Made from hemp and lime within a timber frame — a 100% sustainable and eco-friendly material.

    Excellent sound insulation

    Its porous, open structure absorbs sound, creating a quieter and more peaceful indoor space.

    Fire resistant

    Not only fire-safe, hempcrete is fire-resistant, achieving the class A2 s1, without additional coatings.

    Breathable structure

    Allows walls to breathe, regulating humidity and supporting a healthier indoor climate.

    Moisture regulating

    Absorbs and releases moisture naturally, helping to maintain balanced humidity indoors.

    Carbon negative

    Captures CO₂ during its lifecycle, reducing the overall carbon footprint of the building.

    Discover our hempcrete

    Frequently Asked Questions

    What makes Steam Spirit different from other outdoor saunas?
    Steam Spirit is more than a sauna - it is a living experience rooted in ancient wisdom and reimagined through modern design. Each ready-to-install sauna is built from breathable hempcrete and natural materials, ensuring long-term durability, an authentic sauna microclimate, and material integrity. Unlike mass-produced options, our focus is on creating a thoughtfully crafted space that supports carbon-NEGATIVE building principles and offers a truly immersive sauna experience. Here, heat, breath, and stillness come together to shift your state of mind, not just warm your body.
    How do I begin the purchase process?
    You can assemble your ideal sauna using the configurator on our website and send a price request to us or contact us at hello@steamspirit.eu to discuss your custom project. We will review your site conditions, intended use, and design preferences before preparing a tailored proposal.
    What size sauna should I choose?
    The right size depends on how you plan to use it - for private rituals, family sessions, guest hospitality, or retreat settings. Our modules are available in two sauna room sizes: Smaller sauna modules accommodate up to 6 people, ideal for solo sessions or families with children. Larger sauna modules host up to 8 people, featuring higher ceilings and more space to accommodate full sauna rituals, including Aufguss ceremonies.
    Is the sauna suitable for Aufguss and other rituals?
    Our saunas are designed to accommodate a wide range of traditional sauna rituals. Larger sauna modules feature higher ceilings and wider benches, with enough space on the bench for two adults to lie down simultaneously, providing ample room for Aufguss ceremonies, whisking, body peeling, and massages. Smaller sauna modules can also accommodate almost all of these rituals, making them perfect for personal sessions, families, or smaller groups. The high-quality materials and robust construction ensure the sauna maintains its beauty and performance, even after intensive rituals such as whisking, scrubs, or honey and clay massages. Whether for personal relaxation, family sessions, or group experiences, the sauna provides an environment that enhances the ritual experience and preserves the authentic sauna spirit (löyly).
    Does hempcrete have a CE marking and comply with EU standards?
    We are delighted to offer the benefits of over 10 years of proven hempcrete expertise - an enhanced, laboratory-tested, CE-marked material fully compliant with EU standards.
    View all FAQs

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    Steam Spirit

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