The SAC Series Commercial Electric Sauna Heater delivers powerful, consistent heat in a compact, easy-to-install design — perfect for residential and light commercial sauna rooms.

Designed with a built-in on-stove controller, this heater offers simple temperature and timer adjustment directly on the unit. No external control panel required. No complicated wiring. Just reliable performance and traditional Finnish-style steam.

Available in elegant Silver or Black finishes, the SAC series blends seamlessly into modern sauna interiors while providing efficient heat and excellent stone-to-element contact for high-quality löyly (steam).

All models are TÜV Safety Certified for peace of mind.

• Built-in temperature and timer controls
• Compact design for wall or corner installation
• Durable stainless steel construction
• Fast heat-up time (30–45 minutes)
• Works on 220–380V (single-phase or three-phase)
• Suitable for home and light commercial use
• Includes premium sauna stones

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 sauna heater do I need?

Measure your sauna’s internal volume (length × width × height in metres). As a rule of thumb, allow approximately 1kW per 1.5–2 cubic metres. Add 20% for outdoor or glass-heavy designs.

Q: Can this heater be installed outdoors?

Yes, when installed inside the sauna room itself and protected from direct weather exposure. Always oversize by 20% for outdoor structures.

Q: Do I need an electrician?

Yes. The heater must be hardwired by a licensed electrician to comply with Thai electrical regulations.

Q: How long does it take to heat up?

Typically 30–45 minutes to reach 80–90°C, depending on insulation and room size.

Q: Is this suitable for commercial use?

The SAC series is ideal for homes, boutique gyms, small spas, and light commercial use. High-traffic wellness centres may require heavy-duty commercial heaters.

Q: Are sauna stones included?

Yes. Each heater includes 18–22kg of premium sauna stones selected for durability and thermal shock resistance.

Q: What warranty is included?

1-year manufacturer warranty covering defects in materials and workmanship.