Download our 2026 Sauna & Ice Bath Brochure.

Download Brochure

You are here: Products > Standard Electric Sauna Heater with Wi-Fi

Note: Product images are for illustration purposes. Actual product may vary slightly in appearance due to natural timber variations and manufacturing specifications.

What’s Included

  • Electric sauna heater unit (SAC series)

  • External screen controller with digital LCD display

  • Wi-Fi adapter (plugs into controller for wireless connectivity)

  • Controller cable (for routing through the wall)

  • 18–22kg premium sauna stones (2 boxes)

  • Heater mounting brackets and hardware

  • Installation Manual (English)

Technical Specifications:

Heater Dimensions

  • Heater Size: 41 × 27 × 52 cm (W × D × H)
  • Weight: 10.5kg (heater only, without stones)
  • Stone Capacity: 18–22kg

Electrical Requirements

  • Voltage: 220–240V single-phase
  • Power Options: 3KW / 4.5KW / 6KW / 8KW / 9KW
  • Circuit: Dedicated circuit
  • Wiring: Hardwired installation (no plug)

Controller Specifications

  • Type: External wall-mounted with Wi-Fi

  • Display: Digital LCD screen

  • Temperature Range: 40–110°C

  • Timer: Up to 8 hours

  • Mounting: Outside sauna room

  • Wi-Fi: 2.4GHz wireless (adapter included)

  • App: Free iOS and Android application

Performance

  • Operating Temperature: 70–100°C (typical sauna range 80–90°C)
  • Heat-up Time: 30–45 minutes to reach 80°C (varies by room size)
  • Stone Heating: Direct contact for efficient steam production

Choosing a Heater

Selecting the correct heater size is essential for optimal sauna performance. Use this guide based on your sauna room’s interior cubic volume (length × width × height in metres):

3KW Heater
Suitable for: 3–5 cubic metres
Room example: 1.2m × 1.2m × 2.1m (small 1–2 person sauna)

4.5KW Heater
Suitable for: 4–7 cubic metres
Room example: 1.5m × 1.5m × 2.1m (2–3 person sauna)

6KW Heater
Suitable for: 6–10 cubic metres
Room example: 1.8m × 1.8m × 2.1m (3–4 person sauna)

8KW Heater
Suitable for: 8–14 cubic metres
Room example: 2.0m × 2.0m × 2.1m (4–6 person sauna)

9KW Heater
Suitable for: 9–16 cubic metres
Room example: 2.2m × 2.2m × 2.2m (5–6 person sauna)

Note: For outdoor saunas or rooms with large glass windows, add 20% to your cubic metre calculation when selecting heater size.

Delivery & Installation

Delivery

Free delivery throughout Thailand. Standard delivery timeframe is 3–6 weeks from order confirmation.

Heater, controller, Wi-Fi adapter, and stones ship separately (2 boxes total).

Installation

Professional electrical installation required. The heater must be hardwired to a dedicated circuit by a licensed electrician.

The external controller requires a small hole through the sauna wall for the cable connection. Your electrician or installer can drill this during setup.

Sisu Sauna provides installation guidance but does not install standalone heaters. We recommend hiring a local electrician familiar with high-amperage appliance installation.

Wi-Fi setup is simple. The adapter plugs into the controller, connects to your home Wi-Fi network, and pairs with the app in minutes. No technical expertise required.

Installation typically requires:

  • Dedicated electrical circuit (30–40A depending on heater size)

  • Appropriate MCB/circuit breaker

  • Heat-resistant wiring rated for sauna conditions

  • Small wall penetration for the controller cable

  • Wi-Fi network with 2.4GHz support

  • Minimum clearances from walls and ceiling as per the manual

FAQs

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. Use our Heater Size Guide above to match the right heater to your space.

How does the Wi-Fi control work?

The system includes a compact wireless adapter that plugs into the controller. Once connected to your home Wi-Fi network, you download the free app to your smartphone. The app lets you turn the sauna on/off, set the temperature, adjust the timer, and monitor current conditions from anywhere with internet access.

Is the Wi-Fi system complex to set up?

Not at all. The adapter plugs directly into the controller and connects to your Wi-Fi network like any smart home device. The app guides you through pairing in a few minutes. No technical expertise or professional setup required.

Can I still use the wall controller if the Wi-Fi is down?

Yes. The external wall controller works independently. Wi-Fi adds remote convenience, but the physical controller provides full functionality at all times, even without an internet connection.

What app do I need?

The heater works with a free app available for both iOS (iPhone/iPad) and Android devices. Download links are provided in the installation manual.

Does Wi-Fi work with 5 GHz networks?

The adapter connects to 2.4GHz Wi-Fi networks, which are the most common frequency and typically have better range throughout homes. Most routers broadcast on both 2.4 GHz and 5 GHz simultaneously.

Can I install this heater myself?

The heater requires professional electrical installation by a licensed electrician. While mounting the heater and setting up Wi-Fi 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. The app can alert you when your sauna reaches your target temperature.

Are the sauna stones included?

Yes. Each heater includes 18–22kg of premium sauna stones (shipped in 2 boxes). These volcanic stones are explicitly selected for sauna use and can withstand thermal shock from water contact without cracking.

What electrical supply do I need?

The heater operates on standard Thai 220–240V single-phase power. 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.

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. Ensure the Wi-Fi adapter is protected from moisture.

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. The Wi-Fi feature is helpful for facilities where staff can remotely monitor sauna status.

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.

Description:

The Standard Electric Sauna Heater with Wi-Fi brings smart home convenience to your sauna experience. Control your sauna temperature and timer from anywhere using your smartphone, or use the external wall-mounted controller for hands-on adjustments.

The Wi-Fi system includes a compact wireless adapter that connects to your home network and communicates with the controller. Setup is straightforward and the free app works with both iOS and Android devices. Start warming your sauna from anywhere in your home, check temperatures remotely, and receive alerts when your sauna reaches the desired temperature.

This heater combines all the features of our external controller model with added wireless connectivity. The digital LCD display on the wall-mounted controller provides local control when you prefer, while the app adds flexibility for those who want to manage their sauna sessions remotely.

Available in Silver or Black finish. The compact rectangular design (41 x 27 x 52cm) fits neatly into corner installations and works well with both DIY sauna kits and custom-built sauna rooms.

Choose from five power options to match your sauna room size. All of our sauna heaters are TÜV Safety Certified.

Customer Reviews:

Want advice or a specific style or size? Contact us

HE-SAC-WIFI

Standard Electric Sauna Heater with Wi-Fi

Price from:

THB 42,000

Key Features:

  • Wi-Fi connectivity for smartphone app control

  • Control your sauna from anywhere via the iOS or Android app

  • External wall-mounted controller with digital LCD display

  • Start your sauna remotely so it’s ready when you are

  • Compact rectangular heater design fits corner and wall installations

  • Available in Silver or Black finish

  • Stainless steel construction for durability and corrosion resistance

  • Efficient stone tray design for quality steam (löyly) production

  • Suitable for residential and light commercial use

  • Quick heat-up time of 30–45 minutes

  • TÜV Safety Certified for peace of mind

  • 220–240V single-phase power (standard Thai electrical)

     

  • Subtotal

    {{ currencyFormat( pricing_summary.total_amount ) }}

Change currency:

Want advice or a specific style or size? Contact us

Similar Saunas & Ice Baths

Price from:

THB 1,900

Price from:

THB 60,000

Price from:

THB 47,000

Price from:

THB 47,000

Price from:

THB 42,000

Price from:

THB 42,000

Price from:

THB 39,000

Price from:

THB 30,000

Price from:

THB 57,000

Price from:

THB 155,000

Price from:

THB 185,000

Price from:

THB 86,000

Price from:

THB 118,000

Price from:

THB 168,000

Price from:

THB 103,000

Price from:

THB 99,000

Price from:

THB 149,000

Price from:

THB 134,000

Price from:

THB 109,000

Contact Sisu Sauna Thailand

Have questions about our saunas? Contact us for a free consultation today.

Email Us

Send Us an Email

Phone Us

Call or SMS Us Directly

Message Us

Send Us a Message

© 2025 SISU SAUNA CO., LTD.
Registered No: 0325563001226. All rights reserved. บริษัท ซิซู ซาวน่า จำกัด

Secret Link