Harvia 20 wood-burning Sauna Heater | Internal & external firing
incl. VAT
🚚 Free shipping to the EU mainland & Switzerland for orders over €300
Harvia 20 Series – Your entry into the world of wood-fired sauna heaters
Experience the authentic warmth of a Finnish sauna heater with the Harvia 20 series. These heaters stand for the highest quality, durability, and an incomparable sauna experience. Whether you have a Barrel Sauna, Outdoor Sauna, or classic sauna, Harvia has the right heater for you.
Why the Harvia 20 series is the perfect choice
Powerful and efficient
With an output of18 to 26.1 kW, the Harvia 20 series heats your sauna quickly and evenly. Whether you have a small or medium-sized cabin, these heaters are perfect for rooms with a volume of 8 to 20 m³.
High-quality materials and workmanship
The stoves are made of stainless steel and have been designed for a long service life. The robust design can withstand high temperatures and guarantees you a durable product.
Tradition meets modernity
Enjoy the crackling wood fire and the pleasant warmth—a feeling that only wood-fired sauna stoves can provide. At the same time, the stoves offer practical features such as large viewing windows through which you can watch the fire and optional accessories for even more comfort.
Sustainable and environmentally friendly
With efficient combustion and sophisticated design, Harvia 20 sauna heaters consume less wood while still offering maximum performance.
Perfect for German requirements
Many models in the Harvia 20 series can be equipped with a BImSchV kit to meet German environmental requirements. So nothing stands in the way of your sauna experience!
The advantages at a glance:
- Versatility: Suitable for barrel saunas, Outdoor Saunas, and classic sauna cabins.
- Efficiency: Fast heating and long-lasting warmth.
- Elegant design: Fits seamlessly into any sauna concept.
- Safety: A safety handle and well-thought-out design protect against overheating.
- Heat distribution: Uniform temperatures for a comfortable sauna experience.
- Easy maintenance: Large cleaning openings make maintenance easy.
Harvia – A brand with tradition
Harvia is a Finnish family business with over 70 years of tradition. It stands for innovation, craftsmanship, and a love of saunas. With the Harvia 20 series stoves, you can bring a piece of this history into your home.
Technical highlights of the Harvia 20 series:
- Power: 18–26.1 kW
- Cabin size: For volumes from 8 to 20 m³
- Material: Stainless steel
- Combustion chamber size: For logs up to 51 cm in length
- Stone quantity: Maximum 40 kg
- Distances: Safe distance from walls and ceiling, adapted to modern safety standards
Your step towards the perfect sauna
Whether you are planning your first sauna or looking for an upgrade, the Harvia 20 series is the right choice for you. What are you waiting for? Start your own personal wellness oasis now with a wood-fired Sauna Heater that combines tradition, quality, and comfort.
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A chimney sweep should be consulted before purchasing a wood-burning stove, regardless of country-specific legal regulations. |
| Main differences between the models at a glance: | |||||
|---|---|---|---|---|---|
| Model | Service | Firing | Water boiler Connection |
BImSchV- compliant |
Ideal for |
| 20 Duo | 18 kW | Externally fired | No | No | Medium-sized saunas (8-20 m³) |
| 20 Pro | 24.1 kW | Indoor heating | No | Optional | Fast heating, all-rounder |
| 20 Pro SL | 24.1 kW | Externally fired | No | Optional | BarrelOutdoor Saunas (8-20 m³) |
| 20 RS Pro | 26.1 kW | Indoor heating | On the right-hand side | No | Large cabins, water connection |
| 20 LS Pro | 26.1 kW | Indoor heating | On the left | No | Large cabins, water connection |
| 20 ES Pro | 26.1 kW | Indoor heating | Integrated | Optional | Saunas with water requirements |
Which differences are particularly important to you?
- Firing: Internal or external firing – externally fired models such as the Duo or Pro SL are perfect if you want a separate heating chamber.
- Performance: The 20 Duo (18 kW) is sufficient for smaller saunas, while models such as the 20 Pro or the RS/LS variants with up to 26.1 kW provide more intense heat for large cabins.
- Additional features: Some models (e.g., ES and RS/LS) offer water connections or integrated boilers—ideal for added convenience.
Specifications
| Harvia 20 Duo | Harvia 20 ES Pro | Harvia 20 LS Pro | Harvia 20 Pro | Harvia 20 Pro S | Harvia 20 RS Pro | |
|---|---|---|---|---|---|---|
| Width | 430 mm | 430 mm | 580 mm | 430 mm | 430 mm | 580 mm |
| Height | 760 mm | 760 mm | 760 mm | 760 mm | 760 mm | 760 mm |
| Depth | 510 mm + 280 mm | 650 mm | 510 mm | 510 mm | 510 mm + 210 mm | 510 mm |
| Weight | 80 kg | 75 kg | 65 kg | 60 kg | 70 kg | 65 kg |
| Service | 18 kW | 26.1 kW | 24.1 kW | 24.1 kW | 24.1 kW | 24.1 kW |
| Operating instructions | Operating instructions 20 Duo | Operating instructions 20 ES Pro | Operating instructions 20 LS Pro | Operating Instructions 20 Pro | Operating Instructions 20 Pro | Operating instructions 20 RS Pro |
| Declaration of performance | Performance declaration 20 Duo | Performance declaration 20 ES Pro | Performance declaration 20 LS Pro | Declaration of performance 20 Pro | Declaration of performance 20 Pro | Performance declaration 20 RS Pro |
