
The Harvia Pro 36 Duo Wood-Burning/Electric Heater Combo combines the power of a large-capacity sauna heater with the inviting ambiance of a fireplace. Its glass hatch door allows the firelight to warm the room outside the sauna while simultaneously heating the sauna itself from the other side—bringing atmosphere and efficiency together in one design. Built for large saunas, the Pro 36 DUO delivers strong steam and rapid heating, with a generous stone capacity ensuring a consistent and enjoyable sauna experience. Adjustable feet make installation simple, allowing the chimney opening to be set at the ideal height. For added versatility, the heater can be paired with a separately sold chimney-mounted water tank, offering a convenient way to heat water while you bathe. Crafted with a durable stainless steel outer shell, the Pro 36 DUO blends strength with modern style. Its dual-sided design also offers more flexibility when planning sauna bench layouts, giving you freedom in arranging your space.
Key Features:
- Harvia Pro 36 DUO woodburning heater with a large glass hatch for medium-sized saunas with a wall-embedded glass hatch
- The stone capacity ensures a quick heating and a hot sauna
- Adding firewood from outside the sauna is easy and keeps the sauna room clean
- Convenient removal of ashes from outside the sauna
- Pipe connection (115 mm) on top of the stove
- The DUO heater creates more space in the sauna and allows more freedom when choosing sauna bench solutions
*Sauna Heaters are not sold separately - a sauna must be purchased in conjunction with the purpose of any sauna heater or sauna heater package.
Features:
- Harvia Pro 36 DUO woodburning heater with a large glass hatch for medium-sized saunas with a wall-embedded glass hatch
- The stone capacity ensures a quick heating and a hot sauna
- Adding firewood from outside the sauna is easy and keeps the sauna room clean
- Convenient removal of ashes from outside the sauna
- Pipe connection (115 mm) on top of the stove
- The DUO heater creates more space in the sauna and allows more freedom when choosing sauna bench solutions
Technical
Features
User group | Households |
Power output | 31 kW |
Installation location | Floor |
Installation orientation | - |
Technical documentation languages | DE EN ET FI RU SV |
Color | Black |
Main material | Steel |
Use environment | Interior - wet area |
Prime energy/fuel | Wood |
Measurements
Product height | 1040 mm |
Product width | 510 mm |
Product depth (mm) | 790 mm |
Stone sizes | Ø10–15 cm |
Weights
Net weight (kg) | 80 kg |
Stone amount (kg) | 60 kg |
Distances
Safety distance front (non-combustible materials) | 500 mm |
Safety distance front (combustible materials) | 500 mm |
Safety distance behind (non-combustible materials) | 100 mm |
Safety distance behind (combustible materials) | 500 mm |
Safety distance right side (combustible materials) | 500 mm |
Safety distance right side non-combustible materials | 100 mm |
Safety distance left side (combustible materials) | 500 mm |
Safety distance left side non-combustible materials | 100 mm |
Safety distance (Ceiling) | 1250 mm |
Room min. recommended volume | 14 m³ |
Room max. recommended volume | 36 m³ |
Room min. height(depends on connections and therefore from output, star/delta) | 2060 mm |
Logistics
EAN | 6417659036641 |
Electrical number (STK) | - |
Customs tariff number EU | 73218900 |
ETIM number | EC001884 |
UNSPSC number | - |
Content of delivery (listed) | Frame-Glass door-Grill-Heater Installation and operating instructions |
Product unit (pcs, meters etc.) | PCS |
Sales unit | pcs |
Packaging materials | Cardboard |
Package height | - |
Package width | - |
Package depth | - |
Gross weight | - |
Cardboard weight | - |
Plastic weight | - |

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