Free Delivery · 1–2 Yr Warranty · After-sales Support
Sauna Stones — Natural Volcanic Löyly Stones Our sauna stones are natural volcanic basalt fragments, selected for authentic Finnish-style steam production. Their irregular shape and honeycombed surface are packed with tiny pores — and that's exactly what makes them so effective.
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When water hits stones heated to glowing red, it seeps rapidly into those pores. The intense heat forces the water to expand and burst outward, producing a thick, powerful rush of steam. In Finland, this is called löyly, the soul of the sauna, and it’s what separates a good sauna session from a great one.
Irregular stones stack casually, but there are two rules worth following:
Leave a gap of two to three fingers between each layer to allow heat to circulate freely. Every six months, remove the stones and flip them over completely. This prevents dust and carbon from building up on the underside, which can reduce heat transfer over time.
Thanks to their porous structure, these stones can boost steam production by around 40% compared to smooth, non-porous alternatives. Because they absorb and release water quickly, you’ll find yourself adding water more frequently — which is exactly how a traditional Finnish sauna is meant to be used.
Made from natural volcanic basalt, the stones withstand extreme temperatures exceeding 600°C and will typically last 3 to 5 years with regular use before needing replacement.
Soak new stones in water and thoroughly scrub them before loading them into your heater. This removes any dust or debris from shipping and handling.
Important: Never use crystalline rocks such as quartz in your sauna heater. Crystalline stones can fracture violently when exposed to rapid temperature changes and water contact, creating a serious safety hazard.
If an electrical item stops working within the warranty period, we’ll send you a replacement free of charge.
Every 6 months, remove all stones from the heater, flip them over and restack. This prevents carbon and mineral deposits accumulating on the underside, which reduces heat transfer over time.
Inspect stones for cracks, crumbling or significant erosion each time you restack. Discard any stones that are breaking apart — fractured stones restrict airflow and reduce heater efficiency.
Rinse stones with clean water during restacking to wash away loose dust and debris.
Check that airflow gaps between stones are maintained after restacking. Stones naturally settle over time, so re-spacing them keeps heat circulating evenly.
Replace the full set of stones every 3 to 5 years depending on usage frequency. Commercial or heavy-use saunas may require replacement sooner.
Only use clean water on your stones. Avoid pouring essential oils, beer or other liquids directly onto sauna stones — these leave residue that accelerates carbon buildup and can damage the heating elements. Use an aroma bowl or evaporator cup instead.
Outdoor and indoor cabins, barrels, cylinders and sauna + shower combos — from a compact one-person unit up to ten-person commercial rooms, all customisable to your space. Browse saunas.
Western Red Cedar and Finnish Thermo Pine both handle heat and humidity beautifully; Hinoki is our premium pick. We’ll match the timber to your budget and location.
Outdoor saunas are fully weather-sealed for gardens, rooftops and pool decks; indoor models are built for bathrooms, gyms and spare rooms. Both use indoor-rated electric heaters.
Most home saunas run on a dedicated single- or three-phase circuit sized to the heater. We’ll confirm the exact electrical requirement in your quote.
Both are food-grade and corrosion-resistant; 316 adds extra protection for coastal and chlorinated environments. We recommend the right grade for your site. See ice baths.
Ice works to get started, but a chiller holds a precise temperature day after day with no effort — the easiest way to make cold therapy a daily habit.
Our chillers take the water down to around 3°C and hold it there. Most people plunge between 3–10°C depending on experience.
A built-in filtration and sanitation cycle keeps the water fresh for weeks. We’ll walk you through simple water care at handover.
We soft-open on 30 July 2026 in Chonburi (with Founding Member pricing) and fully open on 4 September — and booking is open now, so you can reserve a session ahead. Book a visit.
The Garden runs on advance bookings so every session has the space to itself — so book ahead if you can. That said, if you're passing and spot us, scan the sign at the gate or give us a call, and if there's room in the current session we'll happily wave you in.
Saunas, ice baths, a swimming pool and shaded lounge areas — everything you need for the full hot-and-cold circuit. Explore the garden.
The Wellness Garden is in Chonburi, easily reached from Bangkok and Pattaya. Full directions and parking details are on the garden page.
Yes — most saunas assemble in a day with two or three people and clear instructions. Prefer it done for you? Our team can handle the full install. Installation service.
Delivery to the spot, full assembly, levelling, heater fitting and a handover walkthrough so it’s ready to use the same day.
A firm, level base — a concrete pad, deck or paved area — plus a nearby power point. We’ll send a simple prep checklist before delivery.
Final connection should be made by a licensed electrician. We provide the full specification and can recommend trusted local contractors.
Yes — we deliver right across Thailand by freight, and ship internationally on request. Delivery details.
Most saunas are ready six to eight weeks from order. Once built, freight to your address typically takes a few days, with tracking provided.
Standard nationwide delivery is included. For tricky access — rooftops, tight lanes or upper floors — we’ll quote any crane or extra handling up front.
Everything ships in a purpose-built timber crate to protect the timber and glass in transit — and the crate is easy to dispose of or repurpose.
Get a straight answer on what suits your space, budget and the Thai climate — free and with no pressure.
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A sauna or ice bath is a long-term addition to your home or commercial space. Tell us about your project, your goals and your timeline — we’ll give you a straight answer, including what the right options are.
Free consultation. Phone call, video call, or visit our showroom in Ban Suan, Chonburi — Rön Yen Shop & Wellness Garden — by appointment. Tell us your space and budget, and we’ll talk through the options with no pressure to buy.
Ban Suan, Chonburi — 10 minutes from Central Chonburi
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