฿52,000 Free Delivery Built to order · 6–8 weeks
Heater & Light Control Touchscreen · Sauna Accessories

Harvia WIFI Control Panel

Harvia Xenio is a control unit with a touch control panel. Xenio provides a modern and subtly stylish user interface for controlling the heart of the sauna, the heater. The stylishly small yet clear touch control panel is easy to install where you want it: in the sauna, the shower room, the dressing room, or even the living room. The control panel enables you to see with just one look when your sauna is at the right temperature for you.

From ฿52,000
Delivery time 3-5 weeks · deposit refundable up to 3 days*
Island delivery (e.g. Koh Samui, excl. Phuket) — ฿1,500 ferry surcharge added at checkout.

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Free consultation
Free delivery in Thailand
1–2 year warranty
After-sales support
Frequently Asked Questions
What size heater do I need for my sauna?
Calculate the interior volume of your sauna room in cubic metres (length × width × height). As a general guide, allow approximately 1kW per 1.5–2 cubic metres. For outdoor saunas or rooms with large windows or glass doors, add 20% to account for heat loss. Refer to the Heater Sizing Guide above.
What is the difference between on-stove and external controllers?
On-stove controllers are integrated into the heater body and feature simple dial controls for temperature and a timer. External controllers mount on the exterior wall of the sauna room, providing digital displays and more precise control. External controllers are easier to adjust without entering the hot sauna.
Can I install this heater myself?
The heater requires professional electrical installation by a licensed electrician. While mounting the heater unit is straightforward, connecting to your electrical supply must be done by a qualified professional to ensure safety and compliance with Thai electrical regulations.
How long does the heater take to warm up the sauna?
Expect 30–45 minutes to reach typical sauna temperatures of 80–90°C, depending on room size, insulation quality, and ambient temperature. Larger rooms or poorly insulated spaces may take longer.
Are the sauna stones included?
Yes. Each heater includes 18–22kg of premium sauna stones (shipped in 2 boxes). These volcanic stones are selected for sauna use and can withstand thermal shock from water contact without cracking.
What electrical supply do I need?
The heater operates on 220–240V power with single-phase or three-phase options available. You will need a dedicated circuit with appropriate amperage (typically 30–40A depending on heater size) and a correctly rated MCB. Your electrician will assess your electrical panel's capacity and recommend the best configuration.
Can I use this heater for an outdoor sauna?
Yes, but the heater itself must be installed inside the sauna room, protected from direct weather exposure. For outdoor saunas, choose a heater size 20% larger than the room volume calculation suggests to compensate for heat loss.
Is this heater suitable for commercial use?
This heater is designed for residential and light commercial use, such as small wellness studios, home gyms, or boutique spas. High-traffic commercial facilities that operate continuously may benefit from commercial-grade heaters with higher duty cycles.
What is the warranty?
Heaters include a 1-year manufacturer's warranty covering defects in materials and workmanship. Warranty does not cover damage from improper installation, misuse, or normal wear of heating elements.
What maintenance does the heater require?
Minimal maintenance is required. Periodically check sauna stones for cracking and replace any damaged stones. Ensure the stone tray remains clear of debris. Heating elements may need replacement after several years of regular use, depending on operating frequency.

Have more questions? Chat with us

About this heater

Overview
  • - For controlling electric heater
  • - temperature adjustment range 40–110 ˚C
  • - operating time adjustment range: family sauna 1–6 h, commercial sauna 1–12 h
  • - pre-setting time adjustment range 0–12 h
  • - lighting and fan control
  • - maximum output 11 kW
  • - power unit supply voltage 400 V 3N~
Delivery

### Installation

- Professional electrical installation required
- Heater must be hardwired to a dedicated circuit by a licensed electrician
- RonYen Sauna provides installation guidance but does not install standalone heaters
- Dedicated electrical circuit required (30–40A depending on heater size)
- Heat-resistant wiring rated for sauna conditions
- Minimum clearances from walls and ceiling as per the manual

### Delivery

- Free delivery throughout Thailand
- Standard delivery timeframe is 1–3 weeks from order confirmation
- Heater and stones ship in separate boxes (2 boxes total)

Warranty

If an electrical item stops working within the warranty period, we’ll send you a replacement free of charge.

Care & Maintenance

Pouring Water on Your Heater
Pour water slowly onto the stones using a ladle — avoid excessive water in one pour. Read our guide on how to pour water on sauna rocks without destroying your heater →

Replacement Heater Elements
Heating elements typically need replacement every few years depending on usage. Replacement elements available from RonYen Sauna.

Specifications

Dimensions
External410 × 270 × 520 mm
Wall thickness38mm
Performance
Temperature range60-105c
Heating time30-45 mins
Power & electrical
Power17kW or less
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 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.

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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