The Commercial Electric Wall Sauna Heater delivers excellent performance, robust build quality, and efficient heat distribution in a compact wall-mounted design — ideal for both home saunas and commercial settings like spas, gyms, wellness studios, and boutique hotels.

Designed for reliability and ease of installation, this wall sauna heater offers consistent heat output and premium steam production (löyly), all backed by TÜV-certified safety and durable construction.

• Wall-mounted design ideal for limited floor space
• Durable stainless-steel finish — corrosion resistant
• Efficient stone tray layout for rich steam production
• TÜV safety certified for peace of mind
• Compatible with residential and light commercial use
• Premium stones included (18–22kg)
• Works on 240–380V — single-phase or three-phase

Please ensure electrical work is completed by a licensed electrician.

Installation

• Professional electrical installation required
• Heater must be hardwired to a dedicated circuit by a licensed electrician
• Sisu 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)

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 Sisu Sauna.

Q: What size wall heater do I need?

Calculate your sauna’s internal volume (length × width × height in metres). Use the sizing guide above to choose the correct kW rating, adding ~20% for outdoor rooms or lots of glass.

Q: Can a wall heater be installed in a home sauna?

Yes. This wall heater is perfect for residential environments and light commercial use, such as private gyms and wellness spaces.

Q: Does it come with stones?

Yes. Each unit includes 18–22kg of premium sauna stones selected specifically for sauna heating.

Q: How long until the sauna heats up?Expect 30–45 minutes to reach typical sauna temperatures of 80–90°C depending on room size and insulation.

Q: Do I need an electrician?

Yes. Hard-wiring must be completed by a licensed electrician to meet Thai electrical standards.

Q: Can this heater be used outdoors?

The heater must be installed inside the sauna room, protected from direct rain and humidity.

Q: Is it suitable for heavy commercial use?

This model supports residential and light commercial spaces. For continuously operated high-traffic facilities, consider higher-duty commercial heaters.

Q: What is the warranty?

Includes a 1-year manufacturer warranty covering material and workmanship defects.