Our Top Picks: Space-Saving Wellness
- Best Permanent Luxury: KLAFS S1 Retractable Sauna – The gold standard for urban apartments. It expands from the size of a bookshelf to a full sauna in seconds, offering professional-grade heat without sacrificing floor space.
- Best Portable Option: HigherDOSE Infrared Sauna Blanket – Ideal for those on a budget or in rentals who want the detox benefits of infrared heat in a stowaway format.
- Best Small Footprint (Static): The Sauna Pod – A compact, capsule-style solution for those who have a dedicated corner but can't accommodate a traditional cabin.
The modern urban dweller is no stranger to the "compact" lifestyle. We’ve mastered the art of the hidden Murphy bed, the nesting coffee table, and the minimalist kitchen. But for a long time, high-end wellness—specifically the deep, restorative heat of a traditional sauna—remained the final frontier of home design. The sheer square footage required for a permanent wooden cabin simply didn't align with the reality of city living. We were forced to choose: a home office or a recovery suite?
However, the design world is currently witnessing a fascinating shift. The "third space"—those luxury wellness centers and spas we used to visit—is collapsing into our "first space," the home. We no longer want to commute for our self-care; we want it integrated into our daily flow. The challenge, of course, is space. Traditional saunas fail the apartment test because they are static, heavy, and demanding. This is where KLAFS, the German leader in sauna innovation, has stepped in to redefine the category.
Can You Fit a Full Sauna in a Small Apartment?
The short answer is a definitive yes. Until recently, "apartment sauna" usually meant a portable steam tent or an infrared blanket. While effective, they lack the immersive, architectural feel of a true thermal experience. The KLAFS S1 changes the conversation entirely by being the world’s first fully retractable home sauna.
Think of it through the "Bookshelf Analogy." When not in use, the KLAFS S1 is incredibly unassuming. It compresses to a depth of roughly 24 inches (60 cm), which is essentially the footprint of a standard deep wall cabinet or a large bookcase. It sits flush against the wall, looking more like a piece of high-end minimalist furniture than a piece of health equipment.
When you’re ready for a session, the unit expands at the touch of a button, gliding outward to a full depth of about 63 inches (160 cm). This retractable home sauna technology ensures that your living room remains a living room until it’s time for it to become a sanctuary.
Engineering the 'Invisible' Sauna: How the 3-Fold System Works
The magic of the S1 lies in what KLAFS calls eMove Technology. It’s a synchronized, three-fold drive system that operates almost silently. In about 20 seconds, the sauna transitions from a slim cabinet to a spacious retreat capable of seating up to three people.
From a design perspective, the S1 is a masterclass in material excellence. This isn't a "pop-up" structure; it features:
- Frame Stability: A robust, patent-pending frame construction that ensures the seals remain airtight despite the moving parts.
- Premium Finishes: You can customize the exterior to match your decor, with options ranging from warm walnut and oak to sleek, modern matte black or white.
- Glass Elements: High-quality 8mm safety glass provides a sense of openness, preventing that "boxed-in" feeling common in small indoor saunas.
KLAFS S1 Dimensions: Space Efficiency at a Glance
| Model Size | Retracted Depth | Expanded Depth | Width | Capacity |
|---|---|---|---|---|
| Small (S) | 23.6 in (60 cm) | 63 in (160 cm) | 67 in (170 cm) | 1-2 Persons |
| Medium (M) | 23.6 in (60 cm) | 63 in (160 cm) | 79 in (200 cm) | 2 Persons |
| Large (L) | 23.6 in (60 cm) | 63 in (160 cm) | 87 in (220 cm) | 2-3 Persons |
The Experience: Professional Grade Heat in a Modular Form
One of the biggest concerns with compact indoor saunas is whether they can actually "get hot enough." Many small electric units top out at lukewarm temperatures, leaving seasoned sauna-goers disappointed. The KLAFS S1 defies this trend.
At the heart of the unit is the SANARIUM control system, a digital interface that allows you to transform the sauna into five different climate zones. Whether you want a classic dry Finnish sauna, a tropical bath, or a soft steam bath, the S1 handles it with precision.
Expert Design Tip: If you’re installing this in a multi-use room like a home office or bedroom, choose the "Matte Black" finish with integrated LED mood lighting. It transforms the unit from a functional tool into a stunning piece of "light architecture" at night.
Feature Highlight: The SANARIUM Experience
The S1 isn't just a heater in a box; it’s a sophisticated climate controller. You can toggle between:
- Classic Sauna: High heat, low humidity (up to 210°F).
- Warm Air Bath: Moderate heat, dry air.
- Tropical Bath: Medium heat, high humidity.
- Aroma Bath: Infused with essential oils for sensory relaxation.
- Soft Steam Bath: Lower heat, maximum humidity for skin hydration.
How hot does the KLAFS S1 get?
The S1 reaches a maximum temperature of 210° Fahrenheit (approx. 100° Celsius). This is professional-grade heat that rivals commercial bathhouses. Because the unit is so well-insulated, it maintains this temperature efficiently, ensuring your apartment doesn't turn into an oven while the sauna is in use.
KLAFS S1 vs. Other Small Space Alternatives
When looking for a space-saving wellness technology, it helps to understand where the S1 sits in the market.
- Traditional Cabin Saunas (e.g., Redwood Outdoors): These are beautiful but permanent. They require a dedicated footprint that you can never "reclaim" for other uses. If you move, taking a full cabin with you is an expensive logistical nightmare.
- Sauna Pods / Capsules: These take up less space than a full cabin but are still static. They often look quite "medical" or utilitarian, which can clash with a curated interior design aesthetic.
- Infrared Sauna Blankets (e.g., HigherDOSE): These are the kings of portability—you can tuck them under a bed. However, they lack the "ritual" of entering a heated space and the ability to share the experience with a partner.
The KLAFS S1 is the choice for permanent luxury. It’s for the homeowner who views wellness as an investment in their property’s value and their own quality of life, without wanting to live in a cluttered environment.
Practicalities: Installation and Electrical Requirements
Bringing a 210°F sauna into an apartment requires more than just a spare corner; it requires the right infrastructure.
Power Needs
The S1 is high-performance, which means it cannot run on a standard 110V wall outlet. You will need a 240V/30A circuit, similar to what a clothes dryer or electric oven requires. If you are in a newer luxury apartment, this is usually easy for an electrician to install, but you should verify your building’s electrical capacity first.
Assembly and Portability
The sauna uses a modular "tongue-and-groove" design. While it is technically possible for a very handy DIYer to assemble, professional installation is highly recommended. KLAFS technicians ensure the eMove motor is perfectly calibrated and the thermal seals are flawless. One major perk for renters or those who move frequently: the S1 is designed to be disassembled and moved to a new location, making it a "lifetime" piece of furniture.
Maintenance
Maintenance is surprisingly low. The woods used (like hemlock or walnut) are selected for their low-VOC (Volatile Organic Compound) emissions and resistance to moisture. A simple wipe-down after use and leaving the door open for ten minutes to vent is usually all that’s required to keep it in pristine condition.
Frequently Asked Questions (FAQs)
How long does it take for the S1 to expand?
The eMove technology takes approximately 20 seconds to fully expand from its "bookshelf" state to its full sauna state. It is a smooth, quiet motorized process.
Can it be installed in a rental apartment?
Yes, provided you have permission to add a 240V outlet. Since it doesn't need to be bolted to the floor and can be disassembled, it is much more "rental-friendly" than a built-in steam room.
Does it require a special floor foundation?
No. The S1 is designed to sit on standard apartment flooring (hardwood, tile, or stone). It does not require specialized drainage, as it is a dry-heat-focused system.
Is it energy efficient?
Surprisingly, yes. Because it is smaller than a massive commercial sauna and features high-tech insulation, it heats up quickly and retains heat well, minimizing electricity draw once it reaches the target temperature.
Conclusion
The KLAFS S1 proves that luxury and limited square footage are no longer mutually exclusive. By applying the principles of retractable furniture to the world of high-end wellness, KLAFS has created a product that respects the constraints of urban living while delivering the uncompromising heat of a traditional spa.
If you are looking to elevate your home recovery routine and have the budget for a permanent, high-design solution, the S1 is unrivaled. It is not just a sauna; it is a disappearing act that brings the "third space" directly into your living room.
