Harvia Sauna Heaters

3–18 kW
TÜV Certified
Free Thailand delivery

Browse harvia sauna heaters Talk to us before you buy

Buying guide

What size heater do I need?

It comes down to the volume of your sauna room. A larger room needs more output, in kilowatts, to reach and hold temperature. Each heater lists its output and the room size it suits. If you're fitting a heater to an existing room, tell us the dimensions and we'll point you to the right output.

What controls can I add?

You can add temperature controls from a digital wall panel through to WiFi and app control for starting the sauna remotely. Control options are listed with each heater.

Are the heaters certified and safe?

Yes. All of our sauna heaters are TÜV Safety Certified. Correct sizing and proper installation matter — which is why we match output to the room and can advise on installation.

Can I buy a heater on its own?

Yes. We sell heaters standalone for replacements, upgrades, or to fit out an existing sauna room. If you're replacing a heater, check the output and mounting suit your room, or send us the details first.

How much do heaters cost, and how long do they take?

Each heater shows its standalone price on the product page. Heaters are delivered across Thailand — confirm availability and lead time when you order.

Single-phase or three-phase supply?

Single-phase supports up to 12kW. Three-phase is required for 15kW and 18kW models. If you're unsure what your property has, tell us before you order.

6kW 9kW

Harvia Spirit Sauna Heater

Power: 6 kW / 9 kW
Voltage: 230–400 V Single-phase (6 kW, 230 V) / Two-phase (6 kW, 400 V) / Three-phase (9 kW, 400 V)
Availability: Built to order

From ฿66,800 Includes 7% VAT

Delivery Time: 6-8 Weeks

10.5kW 13.5kW 16.5kW

Harvia PRO Commercial Sauna Heater

Power: 10.5 / 13.5 / 16.5 kW (see variations)
Voltage: 400 V Three-Phase (3N~)
Availability: Built to order

From ฿54,200 Includes 7% VAT

Delivery Time: 6-8 Weeks

4.5kW 6kW 8kW 9kW

Harvia VEGA Sauna Heater

Power: 4.5 - 9kW
Voltage: 220-240v or 3 Phase Power
Temp: 60-105c
Availability: Built to order

From ฿36,999 Includes 7% VAT

Delivery Time: 2-3 Weeks

4.5kW 6kW 8kW 9kW

Harvia Standard Sauna Heater

Power: 4.5 - 9kW
Voltage: 220-240v or 3 Phase Power
Temp: 60-105c
Availability: Built to order

From ฿36,999 Includes 7% VAT

Delivery Time: 2-3 Weeks

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Common questions

Everything you want to know about saunas & heaters

What sauna sizes and styles do you offer?

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.

Which timber is best for the Thai climate?

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.

Indoor or outdoor — what’s the difference?

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.

How much power does a sauna heater need?

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.

What’s the difference between 304 and 316 stainless?

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.

Do I need a chiller, or will ice do?

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.

How cold can the water get?

Our chillers take the water down to around 3°C and hold it there. Most people plunge between 3–10°C depending on experience.

How do I keep the water clean?

A built-in filtration and sanitation cycle keeps the water fresh for weeks. We’ll walk you through simple water care at handover.

When does the Wellness Garden open?

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.

Can I just drop in?

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.

What facilities are available?

Saunas, ice baths, a swimming pool and shaded lounge areas — everything you need for the full hot-and-cold circuit. Explore the garden.

Where is it located?

The Wellness Garden is in Chonburi, easily reached from Bangkok and Pattaya. Full directions and parking details are on the garden page.

Can I install it myself?

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.

What does professional installation include?

Delivery to the spot, full assembly, levelling, heater fitting and a handover walkthrough so it’s ready to use the same day.

What site preparation is needed?

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.

Do you handle the electrical connection?

Final connection should be made by a licensed electrician. We provide the full specification and can recommend trusted local contractors.

Do you deliver nationwide?

Yes — we deliver right across Thailand by freight, and ship internationally on request. Delivery details.

How long does delivery take?

Most saunas are ready eight to ten weeks from order. Once built, freight to your address typically takes a few days, with tracking provided.

Is delivery really free?

Standard nationwide delivery is included. For tricky access — rooftops, tight lanes or upper floors — we’ll quote any crane or extra handling up front.

How is my order packaged?

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.

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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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