BLOG & NEWS

What should an outdoor sauna actually stand on? This practical guide explains how to prepare a suitable foundation and ground for a freestanding or prefabricated outdoor sauna. Learn about integrated steel feet, gravel and crushed stone bases, concrete slabs, piers, ground screws, drainage, ventilation and moisture protection, and discover what to check and prepare before your outdoor sauna is delivered and installed.

Why does Hetki build authentic Finnish saunas but not infrared? For founder Janne Oksanen, the answer comes from a lifetime with sauna, the meaning of löyly, research into health and wellbeing, and a conscious choice about what Hetki stands for. This is a personal story about Finnish sauna culture, why infrared is a different experience, and why purpose and values should shape what a company makes, even when saying yes to something else might make good commercial sense.

What does science really tell us about the health benefits of Finnish sauna? A new 2026 study from Finland shows that humidity created by löyly influences the body’s physiological response independently of temperature. We look at the latest research on sauna, cardiovascular health, blood pressure, cognitive health and wellbeing, why the type of sauna studied matters, and why evidence from Finnish sauna research should not automatically be applied to infrared heat exposure.

Compare the most common outdoor sauna roof solutions, from permanent metal roofing and bitumen felt to asphalt shingles, PVC and EPDM membranes, covers and separate shelters. Learn how roof construction, insulation, moisture management, snow and wind loads, climate, maintenance and expected lifespan affect the performance, durability and long-term protection of a garden or backyard sauna, and why Hetki chose a permanent metal roof for reliable year-round use in demanding outd

Choosing an outdoor sauna is about much more than appearance, size, heater or price. The way a sauna is constructed affects its durability, insulation, thermal performance, maintenance, longevity and sauna experience. In this guide, we compare four common outdoor sauna construction methods: log sauna, CLT, stick-frame and lightweight timber construction, explaining their key differences, advantages and considerations to help you choose the right structure for your garden or b

Discover the Floating Hetki Sauna, where authentic Finnish log sauna craftsmanship meets premium floating engineering. Developed with Savorak, this unique floating sauna is built on a high-quality floating pier, creating unforgettable sauna experiences directly on the water. Ideal for private waterfront homes, boutique hotels, resorts, spas, wellness destinations, and commercial sauna facilities seeking an authentic Finnish sauna experience close to nature.

Choosing the “best” outdoor sauna is not as simple as many rankings suggest. From affordable backyard models to authentic Finnish log saunas, very different products are often compared side by side under the same label. But what truly defines a great sauna: price, design, features, durability, or the quality of the experience itself? This article explores what really matters when searching for the right sauna for your space and lifestyle.

Is sauna actually Finnish sauna, or is Finnish sauna simply sauna? In Finland, sauna needs no qualifier. It is a natural part of everyday life. Yet globally, the term is used for many different heat-based experiences. At its core, sauna is defined by heat, air, moisture, and löyly. So when everything is called a sauna, what does the word really mean?

The law of löyly is often seen as a defining rule of a proper Finnish sauna, yet the reality is more nuanced. It explains how heat is distributed and felt, and why balanced warmth matters for a comfortable and authentic sauna experience. At the same time, good löyly is never created by one rule alone, but by the harmony of design, materials, ventilation, heater, and use. In the end, what truly matters is how the sauna feels to the person inside.

Sauna does not need complex rules to work. Rooted in Finnish sauna culture, this essay explores two simple principles that shape a respectful and meaningful sauna experience: considering others and trusting your own way of enjoying the heat. A thoughtful perspective on sauna etiquette, wellbeing, and why sauna is meant to be felt, not optimized.

Why does fresh air matter so much in a Finnish sauna? This article explores sauna ventilation and the role of proper airflow in creating soft löyly, good air quality, and a calm, breathable sauna experience. From traditional Finnish sauna design to modern saunas, we explain why fresh air gives life to the sauna and how balanced ventilation shapes how a sauna truly feels.

During the year of 2025, Hetki Finland Oy Ltd has carried out Hetken kasvuselvityshanke , a growth study project, supported by the European Union through the European Regional Development Fund (ERDF) as part of the Uudistuva ja osaava Suomi 2021–2027 programme. The support has been granted by the Centre for Economic Development, Transport and the Environment for the South Savo region (ELY Centre) as business development aid. The aim of the project has been to strengthen our

Sports and sauna have gone hand in hand in Finland for generations. Physical effort first, sauna, relaxation, and recovery next. Today, this simple rhythm is gaining international interest, not as a performance tool or wellness shortcut, but as an enjoyable and supportive way to recover, slow down, and feel good. This article explores how physical exercise and a traditional Finnish sauna naturally complement each other, what research currently suggests, how sauna is used in

Not all saunas are built the same. A true Finnish log sauna, crafted from solid spruce and dovetail-joined corners, stores heat naturally and breathes with the rhythm of the wood. In this article, we explore what sets an authentic log sauna apart — from Finnish craftsmanship and material quality to the gentle, balanced warmth that defines every Hetki sauna. Built to last, designed to feel.

Rantasalmi, located in South Savo, Finland, is a place where forests, lakes, and craftsmanship meet. Surrounded by nature, it’s a community deeply rooted in Finnish sauna traditions and the art of working with wood. Here, Hetki’s outdoor Finnish log saunas are handcrafted from solid spruce, carrying the calm, warmth, and authenticity of this landscape wherever they go.

Discover why proper roof insulation is essential in a sauna. Without it, heat escapes quickly, the heater works harder, and the experience becomes less enjoyable. At Hetki, every outdoor Finnish log sauna is handcrafted in Finland with insulated roof structures, ensuring durability, energy efficiency, comfort, and an authentic sauna experience that lasts for years.

In Finnish folklore, the sauna elf – or saunatonttu – guarded the sauna’s warmth and spirit, reminding visitors to behave respectfully. At Hetki we honor this tradition with Aatos, our AI sauna elf who quietly carries the same values of helpfulness and respect into the digital age, guiding you to authentic sauna experiences.

The exterior finish defines how your sauna looks and feels in its surroundings. Hetki saunas are handcrafted from Finnish spruce and treated by hand with breathable, translucent stains. Choose timeless black, natural spruce, or other finishes to reflect your style. Durable, sustainable, and made to age beautifully outdoors.

Eurovision 2025 kicks off in Basel with semifinals full of heat and energy. At Hetki, we proudly cheer for Finland’s Erika Vikman with Ich komme and for KAJ representing Sweden with their sauna anthem Bara Bada Bastu. Two hot acts, one stage, and unforgettable moments ahead – let the music and sauna spirit shine!

Hetki Sauna is not just another outdoor sauna. Handcrafted from solid Finnish spruce logs with dovetail joints, it honors centuries of tradition while offering modern design, customization, and plug-and-play delivery. Durable, sustainable, and tailored to you, Hetki is a unique blend of heritage, quality, and wellbeing.