Free Delivery · 1–2 Yr Warranty · After-sales Support
RON YEN WELLNESS CO., LTD. · Reg. No. 0205569036839 · VAT registered
A small Chonburi-based team supplying saunas, ice baths and chillers built to last in the Thai climate. Quietly, properly, with people who actually know the product.
RonYen supplies made-to-order saunas, ice baths and chillers to homes, villas, gyms and wellness spaces across Thailand. Everything is chosen and built for one thing: the climate here. Humidity, heavy rain, salt air, full sun. Most sauna kit on the world market is built for Nordic conditions. Ours isn’t.
We focus on the right timber, heaters and chillers for Thai conditions, delivered nationwide and installed by our own team. When you call, you get the people who know the products. Not a call centre, not a script.
And there’s more. In July we opened RonYen Wellness Garden in Ban Suan, Chonburi, a private hot-and-cold sanctuary with a 90°C cedar sauna, 3°C ice baths and a lap pool. Open now — since 30 July.
Two ways to work with us. Want equipment? We deliver saunas, ice baths and chillers Thailand-wide, each one made to order in the timber and size that suits your space, backed by a two-year structural warranty as standard. Want to feel it first? Come to the Garden and run a full hot-and-cold circuit before you commit to anything.
And behind all of it is a small team that delivers, installs and runs the Garden themselves. When something needs doing, we do it. The people you meet are the people who build it.
Two product lanes, fully supported end to end. Pick one and click through, or talk to us first if you’re not sure.
Saunas & Heaters
Outdoor saunas in rectangle, cube and barrel styles, plus indoor and fully custom builds, in four timber options: Red Cedar, Japanese Hinoki, Japanese Cedar and Finnish Thermo Pine. Electric stone heaters, infrared, controls and aftercare parts.
Ice Baths & Chillers
Twenty-four ice bath styles plus custom-made options. Stainless steel tubs (304 and 316), cedar-clad combos, and standalone chillers sized for the Thai climate. Designed to hold 3–15°C reliably, with covers and filtration to keep water clean for weeks.
No high-pressure sales. We’ll tell you straight if a product isn’t the right fit for your space.
Phone, video or an office visit by appointment. We talk through your space, what you’re trying to do and what you’d like to spend.
Price, electrical brief, foundation requirements, delivery, warranty and care — all in one document. No obligation to commit.
60% deposit, then build. Weekly progress photos from week two. Free delivery throughout Thailand; international shipping by request.
Self-assemble with our manual, or have our team handle it. Two-year structural warranty and spare parts kept in stock for the long haul.
Every quote we send. Every product we ship.
Twice the industry standard. Covers the cabin frame, panels and joinery. Heaters and chillers carry their manufacturers’ warranties on top — typically another two years.
Free delivery throughout Thailand, including islands and remote sites. Our team handles site prep, assembly, electrical connection and a full functionality check on installation.
We don’t resell Nordic kit and hope. Every product is specified for the heat, humidity and salt air here: ventilated frames, appropriate timber treatments, chillers sized for the load.
Our saunas are made to order in China and Vietnam, in the same factories every time, to our own designs and specifications. We control the drawings, the timber grade and the quality standard on every order, and we have worked with these factories for years. Delivery and installation across Thailand are done by our own team.
We would rather tell you that plainly than let you find out later. What we build our name on is the specification, the quality control and what happens after it arrives.
The workshop and office are in Chonburi City. We deliver and install throughout Thailand and ship internationally on request.
If you’d like to discuss a project face-to-face, please book a free consultation first. Viewing is by appointment at our Ban Suan showroom.
Registered in Chonburi, July 2026. Full tax invoices issued on every order.
Ask us for the registration document if your accounts department needs it for approval.
RönYen was registered in July 2026, and we would rather tell you that than have you find it on the DBD register yourself.
What is not new is the work. Our directors have spent years in Thai saunas and ice baths — specifying them, selling them, designing them and standing in rooms while they were installed. The factories we build with are the same ones we have worked with for years, on drawings and quality standards we control ourselves. The installers who arrive at your door have done it many times before.
A new company name on an experienced team is a better position than the reverse. It means the decisions here are ours: what we build, what timber goes into it, what we will and will not sell you, and what happens after it is delivered.
There is a working two-person Red Cedar sauna and three ice baths at our wellness garden in Ban Suan, Chonburi, and you are welcome to use them. We hold finished samples of all four timbers. If you cannot get to us, we will bring the samples to you anywhere in Thailand for a fee, which comes off the price of your order when you buy.
Free consultation by phone, video or office visit. Quick written quote, no pressure to commit.
Outdoor and indoor cabins, barrels, cylinders, cube and modern designs, plus sauna-and-shower combos — from a compact one-person unit up to fourteen-person commercial rooms. Every model is made to order and customisable to your space. Browse saunas.
Red Cedar and Finnish Thermo Pine both handle heat and humidity beautifully — cedar for its aroma and natural rot resistance, thermo pine for its stability in wet conditions. Japanese Hinoki is our premium pick. Canadian Hemlock is excellent value for indoor cabins. We’ll match the timber to your budget, look 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 the same indoor-rated electric stone heaters — the difference is the exterior cladding and weatherproofing.
It depends on the internal volume of the cabin. As a guide: 4.5kW for 3–6 m³, 6kW for 5–8 m³, 9kW for 8–11 m³, 12kW for 11–15 m³, 15kW for 13–18 m³ and 18kW for 15–20 m³. Above 20 m³ takes two heaters. Up to and including 9kW runs on single phase; above that is three phase only, which in practice means anything from a six-person cabin upwards. We confirm the exact requirement in your quote so your electrician knows precisely what to install.
Both are food-grade and corrosion-resistant. 316 adds extra protection for coastal air and chlorinated water, so it’s the safer choice near the sea or beside a pool. 304 is excellent value everywhere else. We’ll recommend the right grade for your site. See ice baths.
Ice works to get started, but it melts fast in Thailand and gets expensive. A chiller holds a precise temperature day after day with no effort — it’s the easiest way to make cold therapy a daily habit rather than an occasional event.
Our chillers run from 0°C to 42°C, so the same unit chills in the hot season and heats in the cool one. Most people plunge between 3°C and 10°C. Beginners usually start around 12–15°C and work down over a few weeks.
Our chillers include filtration and ozone sanitation that keep the water fresh for weeks between changes: run the ozone for 30–60 minutes after each session with the lid on, and the hydrogen peroxide in the cleaning kit keeps the water clean in between (about 160 ml on a fresh 320 L fill, then ~50 ml a week, checked with a test strip). Both are safe on stainless, acrylic and PVC baths. We walk you through it at handover — it’s far less work than a pool.
Yes. Our brochures are on the site as downloads and we can email them to you. Because every sauna is made to order, the catalogue shows configurations and starting prices rather than a fixed range. Download the brochures.
The room dimensions, whether it is indoor or outdoor, how many people, and roughly where you are. If you have a floor plan, send that. From those four things we can quote accurately.
Yes, three ways. Come to the wellness garden and showroom in Ban Suan, Chonburi, ten minutes from Central Chonburi — there is a working sauna and ice baths you can use, by appointment. We hold finished samples of all four timbers. Or we will bring the samples to you: we travel anywhere in Thailand for a fee, and that fee comes off the price of your order when you buy. Book a consultation.
Yes. RonYen Wellness Co., Ltd is VAT registered and can issue full tax invoices. Ask us for the registration document if your accounts department needs it for approval.
Yes. We deliver to Koh Samui, Koh Phangan, Koh Tao, Koh Kood and Phuket regularly. Island delivery carries a supplement over mainland freight, quoted per job, and adds a few days. Tell us the island and we will price it with the quote rather than after.
We service Thailand and Laos. We are not set up for shipping further afield at the moment.
Mainland delivery is included in the price. Islands and remote provinces carry a supplement, quoted with your order.
Yes — we deliver right across Thailand by freight. Wherever you are, we’ll get it to you. Delivery details.
Occasionally, depending on the unit and where it is. Send us photographs of the heater, the control gear and the cabin and we will tell you honestly whether it is worth us coming or whether a local electrician can sort it for less.
Heater elements, stones, control panels and thermostats for the heaters we supply, held in Thailand. If you have another brand, tell us the model and we will say whether we can help.
Not currently.
Yes, for saunas in commercial operation. A room running twelve hours a day carries four to six times the load of a home installation, and scheduled servicing is what keeps it performing and keeps the warranty intact. Commercial servicing.
Yes — every sauna arrives in a sealed timber crate with the wall sections already built, and most assemble in a day with two or three people and the supplied instructions. No specialist tools needed. Prefer it done for you? Our team can handle the full install. Installation service.
Delivery to the spot, full assembly, levelling, fitting the heater, and a handover walkthrough so it’s ready to use the same day. It’s the easy option if you’d rather not build it yourself.
A firm, level base — a concrete pad, deck or paved area — plus a power point within reach for the heater. We send a simple prep checklist before delivery so everything’s ready when your sauna arrives.
The final hard-wire connection of the heater should be made by a licensed electrician — that part isn’t included, for safety and compliance. We supply the full heater specification and can recommend trusted local contractors.
Reserve online in a couple of minutes — pick a plan, a date and a time slot, and choose to pay online or on arrival. You’ll get a confirmation by email and text.
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, in a quiet private garden. A towel, flip-flops, a locker and your first drink come free with every visit. Explore the garden.
It’s in Chonburi, easily reached from Bangkok and Pattaya. We’re in a private gated community — when you arrive, look for the RonYen sign at the gate and we’ll open it for you. We text a reminder before your session so we’re ready and waiting.
Get a straight answer on what suits your space, budget and the Thai climate — free and with no pressure.
Book a free consultation
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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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