
Haljas Hele Double Outdoor Sauna 7 Seater with Changing Room
The Haljas Hele Double is a luxurious, all-encompassing outdoor sauna that seamlessly integrates both a spacious sauna and a dedicated changing room. This versatile design is available with your choice of an electric heater for convenient and consistent warmth, or a traditional wood-fired heater for those who prefer a more authentic sauna experience.
Key Features of the Hele Double
- Double-glazed tempered mirror glass facade
- Two heater options: electric or wood-fired
- Comfortable seating for up to 7 people
- Two Interior Options: Dark Thermo Alder or Light Aspen
- Exceptional 360° view
- Changing room
Traditional Craftsmanship Meets Modern Technology
This exquisite creation is a perfect fusion of traditional craftsmanship and cutting-edge technology. The foundation is built with sturdy Cross-Laminated Timber (CLT) panels for the floor and ceiling, providing both durability and superior thermal insulation.
Luxurious Interior Wood Options
Choose from two exceptional wood types for the interior: light and smooth Aspen, or rich and aromatic Thermo-Alder. Both woods are selected for their durability and comfort, remaining splinter-free and cool to the touch, even in high heat.
Privacy with a View
The sauna is encased in tempered double-glazed glass with a mirrored finish, allowing you to enjoy views of the outside while ensuring complete privacy. This glass is highly insulated, making the sauna effective even in the coldest regions of the UK.
Weather-Resistant Roofing
The sauna’s roof is crafted from EPDM, a high-performance synthetic rubber renowned for its weather resistance, flexibility, and long lifespan, ensuring your sauna withstands the UK’s varied climate.
Warm and Inviting Lighting
IP-65 rated LED strips illuminate both the interior and exterior, creating a welcoming atmosphere. These lights are designed to maintain privacy, even when it’s dark outside.
Ventilation Options
The wood-fired Hele Double features natural gravity-based ventilation, while the electric version includes mechanical ventilation, with systems beneath the benches ensuring optimal airflow and consistent temperatures.
Ceiling Options
Choose between a standard or juniper ceiling for a unique sauna experience. When heated, the juniper emits a light wood scent, creating a sensory oasis. The juniper ceiling features real juniper pieces attached to the roof, adding a special touch. The standard ceiling is lined with alder or aspen for a classic look.
Hele Double Sauna Room in 360 Degrees
Hele Double Changing Room in 360 Degrees
Heater Choices
The Hele Double is available with an electric heater or wood-fired heater. Ventilation method depends on the heater type. With an electric heater there is mechanical ventilation and with a wood-fired heater there is natural ventilation.
HUUM HIVE Mini 11 kW Electric Heater

The HUUM HIVE Mini 11 kW electric heater is a powerful and efficient heating solution that complements the Hele Single perfectly. This heater features a UKU Black local control panel, which offers precise temperature regulation and ensures user safety with its integrated safety railing. The HIVE Mini is equipped with an embedding flange and an innovative air tunnel, optimising airflow and heat distribution. Complete with 150 kg of stones, it provides a robust and consistent heat. This heater comes with a UKU local control panel as standard, but can choose to upgrade to UKU WiFi or UKU 4G controls above.
Cozy 12 kW Wood-Fired Heater

The heart of a sauna is its heater, and the Cozy 12 kW LS wood-fired heater excels at providing mild, long-lasting heat. This heater, which includes 120 kg of stones and a chimney set, ensures a comfortable sauna experience by producing steam when water is thrown on the stones. Unique in Estonia, Cozy heaters meet the stringent German BIMSCH certificate requirements in TĂśV tests without the need for supportive equipment, making them exceptionally fuel-efficient, using at least 25% less fuel compared to similar heaters, and in some tests, up to 40% less. Additionally, the smoke gases are six times cleaner than those from comparable heaters. Designed for saunas sized 6-13mÂł, the Cozy 12 kW LS also features a safe distance of only 17 cm between the heater and flammable materials without requiring fire protection screens.
Hele Double Dimensions

See the Hele Double in Action
Hele Double Specifications
| Specification | Hele Double (Wood Fired) | Hele Double (Electric) |
|---|---|---|
| Capacity | Up to 7 People | Up to 7 People |
| Exterior Length | 450 cm | 450 cm |
| Exterior Width | 230 cm | 230 cm |
| Exterior Height | 251 cm | 251 cm |
| Interior Length | 439 cm | 439 cm |
| Interior Width | 220 cm | 220 cm |
| Interior Height | 220 cm | 220 cm |
| Shipping Dimensions | 457 cm L x 457 cm W x 254 cm H | 457 cm L x 457 cm W x 254 cm H |
| Interior Materials | Aspen or Thermo-Alder | Aspen or Thermo-Alder |
| Exterior Materials | Double Glazed Mirror-effect glass | Double Glazed Mirror-effect glass |
| Power Supply | N/A | 3-phase 400V, 16A (Electric heater) or 230V power circuit alternative |
| Control Options | N/A | Local control panel, HUUM mobile app, UKU WiFi, or UKU 4G control system |
| Ventilation | Natural (Wood fired) | Mechanical forced (Electric) |
| Maintenance | Glass cleaning recommended twice a year | Glass cleaning recommended twice a year |
| Heater | Cozy 12 | 11 kW Electric heater |
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Haljas Hele Double is a luxurious, all-encompassing outdoor sauna that seamlessly integrates both a spacious sauna and a dedicated changing room. This versatile design is available with your choice of an electric heater for convenient and consistent warmth, or a traditional wood-fired heater for those who prefer a more authentic sauna experience.
Key Features of the Hele Double
- Double-glazed tempered mirror glass facade
- Two heater options: electric or wood-fired
- Comfortable seating for up to 7 people
- Two Interior Options: Dark Thermo Alder or Light Aspen
- Exceptional 360° view
- Changing room
Traditional Craftsmanship Meets Modern Technology
This exquisite creation is a perfect fusion of traditional craftsmanship and cutting-edge technology. The foundation is built with sturdy Cross-Laminated Timber (CLT) panels for the floor and ceiling, providing both durability and superior thermal insulation.
Luxurious Interior Wood Options
Choose from two exceptional wood types for the interior: light and smooth Aspen, or rich and aromatic Thermo-Alder. Both woods are selected for their durability and comfort, remaining splinter-free and cool to the touch, even in high heat.
Privacy with a View
The sauna is encased in tempered double-glazed glass with a mirrored finish, allowing you to enjoy views of the outside while ensuring complete privacy. This glass is highly insulated, making the sauna effective even in the coldest regions of the UK.
Weather-Resistant Roofing
The sauna’s roof is crafted from EPDM, a high-performance synthetic rubber renowned for its weather resistance, flexibility, and long lifespan, ensuring your sauna withstands the UK’s varied climate.
Warm and Inviting Lighting
IP-65 rated LED strips illuminate both the interior and exterior, creating a welcoming atmosphere. These lights are designed to maintain privacy, even when it’s dark outside.
Ventilation Options
The wood-fired Hele Double features natural gravity-based ventilation, while the electric version includes mechanical ventilation, with systems beneath the benches ensuring optimal airflow and consistent temperatures.
Ceiling Options
Choose between a standard or juniper ceiling for a unique sauna experience. When heated, the juniper emits a light wood scent, creating a sensory oasis. The juniper ceiling features real juniper pieces attached to the roof, adding a special touch. The standard ceiling is lined with alder or aspen for a classic look.
Hele Double Sauna Room in 360 Degrees
Hele Double Changing Room in 360 Degrees
Heater Choices
The Hele Double is available with an electric heater or wood-fired heater. Ventilation method depends on the heater type. With an electric heater there is mechanical ventilation and with a wood-fired heater there is natural ventilation.
HUUM HIVE Mini 11 kW Electric Heater

The HUUM HIVE Mini 11 kW electric heater is a powerful and efficient heating solution that complements the Hele Single perfectly. This heater features a UKU Black local control panel, which offers precise temperature regulation and ensures user safety with its integrated safety railing. The HIVE Mini is equipped with an embedding flange and an innovative air tunnel, optimising airflow and heat distribution. Complete with 150 kg of stones, it provides a robust and consistent heat. This heater comes with a UKU local control panel as standard, but can choose to upgrade to UKU WiFi or UKU 4G controls above.
Cozy 12 kW Wood-Fired Heater

The heart of a sauna is its heater, and the Cozy 12 kW LS wood-fired heater excels at providing mild, long-lasting heat. This heater, which includes 120 kg of stones and a chimney set, ensures a comfortable sauna experience by producing steam when water is thrown on the stones. Unique in Estonia, Cozy heaters meet the stringent German BIMSCH certificate requirements in TĂśV tests without the need for supportive equipment, making them exceptionally fuel-efficient, using at least 25% less fuel compared to similar heaters, and in some tests, up to 40% less. Additionally, the smoke gases are six times cleaner than those from comparable heaters. Designed for saunas sized 6-13mÂł, the Cozy 12 kW LS also features a safe distance of only 17 cm between the heater and flammable materials without requiring fire protection screens.
Hele Double Dimensions

See the Hele Double in Action
Hele Double Specifications
| Specification | Hele Double (Wood Fired) | Hele Double (Electric) |
|---|---|---|
| Capacity | Up to 7 People | Up to 7 People |
| Exterior Length | 450 cm | 450 cm |
| Exterior Width | 230 cm | 230 cm |
| Exterior Height | 251 cm | 251 cm |
| Interior Length | 439 cm | 439 cm |
| Interior Width | 220 cm | 220 cm |
| Interior Height | 220 cm | 220 cm |
| Shipping Dimensions | 457 cm L x 457 cm W x 254 cm H | 457 cm L x 457 cm W x 254 cm H |
| Interior Materials | Aspen or Thermo-Alder | Aspen or Thermo-Alder |
| Exterior Materials | Double Glazed Mirror-effect glass | Double Glazed Mirror-effect glass |
| Power Supply | N/A | 3-phase 400V, 16A (Electric heater) or 230V power circuit alternative |
| Control Options | N/A | Local control panel, HUUM mobile app, UKU WiFi, or UKU 4G control system |
| Ventilation | Natural (Wood fired) | Mechanical forced (Electric) |
| Maintenance | Glass cleaning recommended twice a year | Glass cleaning recommended twice a year |
| Heater | Cozy 12 | 11 kW Electric heater |





