Harvia Modulo sauna heater

Flexible. Expressive. Durable.
The Harvia Modulo is a heater for designers. For those who want to not just use their sauna, but also consciously shape it. Its cubic design, open stone surface, and modular construction make it the ideal choice for creative interior solutions – whether freestanding, in a corner, or integrated into bench structures. Modulo stands for technical durability and design freedom.

Robustly built for intensive infusions
This sauna heater was designed for powerful, long-lasting infusions. The impressive stone load of up to 160 kg ensures even, gentle warmth – with strong heat development and a visually striking, exposed stone surface. The Modulo doesn't appear bulky, but rather clean and elegant. A design statement for modern wellness spaces.

Easy to install. Easy to maintain.
The Modulo also impresses with its maintenance-friendly design: The heating elements are separated from the stone volume, extending their service life. They are particularly easy to replace thanks to a removable element package. The design also ensures that all maintenance work can be carried out efficiently and easily – in keeping with the spirit of professional applications.

Can be individually combined. Railings available upon request.
The Harvia Modulo is available in several performance variants and can be complemented with optional guard rails if required. This allows it to fit seamlessly into large private cabins, commercial saunas, or unusual spa architecture.

Technical details

• Power: 13.6 / 15.8 / 18.0 kW

• Cabin size: 11–20 / 15–25 / 20–28 m³

• Voltage: 400 V 3N~

• Control: external, sold separately

• Dimensions (W×H×D): 550 × 805 × 550 mm

• Stone quantity: up to 160 kg (Ø 10–15 cm, not included)

• Weight: 47 kg without stones

The Harvia Modulo is no ordinary sauna heater – it is a powerful building block for saunas with personality, designed for spaces where aesthetics meet long-lasting performance.