RonYen Wellness logo over a dark interior with a glass-fronted sauna and a round timber ice bath
RönYen · Est. 2020
About RönYen

Hot and cold, done right.

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.

Made to orderEvery sauna built to your spec
NationwideDelivered across Thailand
4 timbersRed Cedar, Hinoki, Japanese Cedar, Thermo Pine
2-yearStructural warranty as standard
Our story
RonYen Wellness staff in the garden

Rön Yen (ร้อนเย็น) means hot and cold — and that’s what we’re about.

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.

What we do

Two product lanes, fully supported end to end. Pick one and click through, or talk to us first if you’re not sure.

How we work

No high-pressure sales. We’ll tell you straight if a product isn’t the right fit for your space.

01

Free consultation

15–45 minutes

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.

02

Written quote

1–2 business days

Price, electrical brief, foundation requirements, delivery, warranty and care — all in one document. No obligation to commit.

03

Build & deliver

8–10 weeks

60% deposit, then build. Weekly progress photos from week two. Free delivery throughout Thailand; international shipping by request.

04

Install & aftercare

Ongoing

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.

Three things we’ll back up in writing.

Every quote we send. Every product we ship.

Two-year structural warranty

Twice the industry standard. Covers the cabin frame, panels and joinery. Heaters and chillers carry their manufacturers’ warranties on top — typically another two years.

24 months structural · 1–2 yr equipment

Nationwide delivery & install

Free delivery throughout Thailand, including islands and remote sites. Our team handles site prep, assembly, electrical connection and a full functionality check on installation.

Bangkok · Pattaya · Phuket · Samui · Chiang Mai

Built for the Thai climate

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.

4 climate-tested timbers · 304/316 stainless
Where you’ll find us

Chonburi City — about ninety minutes east of Bangkok.

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.

Have a question?

Talk to us before you buy.

Free consultation by phone, video or office visit. Quick written quote, no pressure to commit.

Common questions

Everything you want to know about saunas & heaters

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’re open now in Chonburi, Thursday to Sunday, with Founding Member pricing until 30 September. The full experience opens 4 September — book ahead to be sure of a spot. 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 eight to ten 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.

Still deciding? Talk to a specialist.

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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Talk to us before
you buy.

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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