Finnmark Sauna
Large Wood Barrel Sauna with Window (6-8 Person) in Black
Large Wood Barrel Sauna with Window (6-8 Person) in Black
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Description
Description
The Large Wood Barrel Sauna with Window in Black is Finnmark Sauna’s own-brand outdoor barrel for 6–8 people, supplied as a flat-packed DIY kit in 40 mm thermally modified Nordic spruce with a semi-panoramic window set into the rear of the barrel and the exterior finished in black. The black finish is applied to the exterior only; the interior timber is unchanged from the natural version, sold separately as the Large Wood Barrel Sauna with Window (6-8 Person). The staves are Thermory thermo spruce, x-rayed for internal flaws and modified with heat and steam rather than chemicals, so the barrel resists rot and moisture while staying light enough to assemble on a simple level base. It measures 2,975 mm long and 2,400 mm high on its cradles, with an 11 m³ sauna room, two thermo aspen benches, an 8 mm tempered glass door and bitumen roof shingles included in the kit. It is sold in three configurations: without a heater, with the wood-burning Kuru 20 barrel kit (heat shielding, flue kit and stones), or with the Narvi Ultra 15 kW electric heater in black, supplied with stones; a wood-burning heater takes up more bench space, so plan for the lower end of the stated capacity. A compatible lighting kit, paraffin oil and an assembly service are available separately. The price includes Moffett delivery to most mainland UK postcodes.
Features
Technical Specification
| External dimensions (L × W × H) | 2,975 × 2,300 × 2,400 mm |
| Barrel diameter | 2,250 mm |
| Sauna room volume | 11 m³ |
| Capacity | 6–8 people |
| Wall thickness | 40 mm thermo spruce staves |
| Bench dimensions | 2,700 × 567 mm |
| Space between opposing benches | 788 mm |
| Door | 8 mm tempered glass, 1,854 × 620 mm, no lock |
| Window | Semi-panoramic, rear of the barrel |
| Exterior finish | Black (exterior only; interior unchanged) |
| Roof covering | Bitumen shingles (included) |
| Gross weight (packaged) | 880 kg |
| Packaging | OSB box, 3,040 × 1,250 × 1,020 mm |
| Warranty | 2-year manufacturer’s warranty on timber structures and housings |
| What’s included | |
| Barrel structure | 40 mm Nordic Thermo Spruce stave frame |
| Foundation beams | 4 |
| Metal frame bands | 3 (positions set according to the instructions) |
| Benches | 2 × Thermo Aspen |
| Flooring | Thermo Aspen duckboard |
| Ventilation | Sauna ventilation valve |
| Door | 8 mm tempered glass, 1,854 × 620 mm |
| Window | Semi-panoramic window in the rear panels |
| Roof | Bitumen shingle set with underlay |
| Documentation | Assembly instructions in English |
| Heater package | As selected: none, Kuru 20 wood-burning kit (heat shielding, flue kit and stones), or Narvi Ultra 15 kW electric heater with stones |
| Foundation set-out | |
| Ground-contact cradles | 4 × 70 mm-wide cradles across the sauna |
| Cradle positions | Outer cradles 176 mm in from each end; two intermediate |
| Clear gaps between cradles | 782 / 776 / 782 mm |
| Cradle footprint (L × W) | 2,619 × 1,500 mm |
Assembly
The sauna arrives flat-packed as a DIY kit and is built from the cradles up, following the English assembly instructions supplied; the manufacturer recommends two people for the build. Check parts before construction and make sure the site is level and free of standing water after rainfall. The roof shingles are nailed in courses over the supplied underlay and then heat-sealed, following the separate shingles guide. The glass door is deliberately supplied without a lock to prevent accidental entrapment; in strong winds, place a heavy object in front of the door to keep it closed. An assembly service is available: contact Finnmark Sauna for a personalised quotation.
Foundations
The barrel stands on its foundation beams and needs a firm, level base; concrete, pavers or compacted crushed stone are preferred. The usage and maintenance guide in the Downloads tab also covers gravel pads, screw-pile foundations and trailer mounting.
Heater options
Three configurations are sold. The wood-burning option pairs the Kuru 20 with heat shielding, a flue kit and stones; a wood-burning heater takes up more bench space than an electric model, so plan for the lower end of the stated capacity. The electric option is the Narvi Ultra 15 kW in black, supplied with stones; all electrical work, including heater installation, must be carried out by a licensed electrician. Choose No Heater to pair the barrel with a different heater, such as the wood-burning sauna stove bundle for barrel saunas, sold separately.
Timber
The staves are Thermory thermo spruce from responsibly sourced Northern European timber, with a brushed texture and distinct knots; the benches and floor duckboards are thermo aspen. Thermal modification with heat and steam removes the sugars that make wood prone to rot, so the timber absorbs far less moisture and stays dimensionally stable outdoors. On this version the exterior is finished in black; the interior timber is unchanged.
Care
The interior timber must be treated to protect it from moisture before use: a specialist sauna finish for walls and ceilings, a bench protection product for the seating, and paraffin oil is also advisable; never use paint or varnish inside, as the wood must breathe. Protect the exterior with a suitable product, reapplied regularly, and ventilate and dry the sauna after each session. On first heating, run the sauna to around 100°C for two hours, well ventilated and without bathing. The full usage and maintenance guide is in the Downloads tab.
Brand
This barrel sauna is designed and sold by Finnmark Sauna, the UK sauna specialist, and manufactured in the Nordics from Thermory thermo spruce.
Warranty
A 2-year manufacturer’s warranty covers the timber structures and housings. Following the usage and maintenance guide in the Downloads tab is a condition of the warranty.
Ordering & Delivery
The sauna ships flat-packed in an OSB box measuring 3,040 × 1,250 × 1,020 mm. The price includes a Moffett (rear-forklift) delivery to most mainland UK postcodes, usually within 3–8 working days of dispatch; off-shore and some outlying postcodes are quoted separately. The sauna is an uninsulated outdoor structure, so weather conditions can influence heat-up times through the seasons. The Delivery & Returns tab carries the full policy.
Downloads
Delivery & Returns
Delivery
We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.
Returns
We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.
Warranty & Quality Promise
We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.
Description
The Large Wood Barrel Sauna with Window in Black is Finnmark Sauna’s own-brand outdoor barrel for 6–8 people, supplied as a flat-packed DIY kit in 40 mm thermally modified Nordic spruce with a semi-panoramic window set into the rear of the barrel and the exterior finished in black. The black finish is applied to the exterior only; the interior timber is unchanged from the natural version, sold separately as the Large Wood Barrel Sauna with Window (6-8 Person). The staves are Thermory thermo spruce, x-rayed for internal flaws and modified with heat and steam rather than chemicals, so the barrel resists rot and moisture while staying light enough to assemble on a simple level base. It measures 2,975 mm long and 2,400 mm high on its cradles, with an 11 m³ sauna room, two thermo aspen benches, an 8 mm tempered glass door and bitumen roof shingles included in the kit. It is sold in three configurations: without a heater, with the wood-burning Kuru 20 barrel kit (heat shielding, flue kit and stones), or with the Narvi Ultra 15 kW electric heater in black, supplied with stones; a wood-burning heater takes up more bench space, so plan for the lower end of the stated capacity. A compatible lighting kit, paraffin oil and an assembly service are available separately. The price includes Moffett delivery to most mainland UK postcodes.
Features
| External dimensions (L × W × H) | 2,975 × 2,300 × 2,400 mm |
| Barrel diameter | 2,250 mm |
| Sauna room volume | 11 m³ |
| Capacity | 6–8 people |
| Wall thickness | 40 mm thermo spruce staves |
| Bench dimensions | 2,700 × 567 mm |
| Space between opposing benches | 788 mm |
| Door | 8 mm tempered glass, 1,854 × 620 mm, no lock |
| Window | Semi-panoramic, rear of the barrel |
| Exterior finish | Black (exterior only; interior unchanged) |
| Roof covering | Bitumen shingles (included) |
| Gross weight (packaged) | 880 kg |
| Packaging | OSB box, 3,040 × 1,250 × 1,020 mm |
| Warranty | 2-year manufacturer’s warranty on timber structures and housings |
| What’s included | |
| Barrel structure | 40 mm Nordic Thermo Spruce stave frame |
| Foundation beams | 4 |
| Metal frame bands | 3 (positions set according to the instructions) |
| Benches | 2 × Thermo Aspen |
| Flooring | Thermo Aspen duckboard |
| Ventilation | Sauna ventilation valve |
| Door | 8 mm tempered glass, 1,854 × 620 mm |
| Window | Semi-panoramic window in the rear panels |
| Roof | Bitumen shingle set with underlay |
| Documentation | Assembly instructions in English |
| Heater package | As selected: none, Kuru 20 wood-burning kit (heat shielding, flue kit and stones), or Narvi Ultra 15 kW electric heater with stones |
| Foundation set-out | |
| Ground-contact cradles | 4 × 70 mm-wide cradles across the sauna |
| Cradle positions | Outer cradles 176 mm in from each end; two intermediate |
| Clear gaps between cradles | 782 / 776 / 782 mm |
| Cradle footprint (L × W) | 2,619 × 1,500 mm |
Assembly
The sauna arrives flat-packed as a DIY kit and is built from the cradles up, following the English assembly instructions supplied; the manufacturer recommends two people for the build. Check parts before construction and make sure the site is level and free of standing water after rainfall. The roof shingles are nailed in courses over the supplied underlay and then heat-sealed, following the separate shingles guide. The glass door is deliberately supplied without a lock to prevent accidental entrapment; in strong winds, place a heavy object in front of the door to keep it closed. An assembly service is available: contact Finnmark Sauna for a personalised quotation.
Foundations
The barrel stands on its foundation beams and needs a firm, level base; concrete, pavers or compacted crushed stone are preferred. The usage and maintenance guide in the Downloads tab also covers gravel pads, screw-pile foundations and trailer mounting.
Heater options
Three configurations are sold. The wood-burning option pairs the Kuru 20 with heat shielding, a flue kit and stones; a wood-burning heater takes up more bench space than an electric model, so plan for the lower end of the stated capacity. The electric option is the Narvi Ultra 15 kW in black, supplied with stones; all electrical work, including heater installation, must be carried out by a licensed electrician. Choose No Heater to pair the barrel with a different heater, such as the wood-burning sauna stove bundle for barrel saunas, sold separately.
Timber
The staves are Thermory thermo spruce from responsibly sourced Northern European timber, with a brushed texture and distinct knots; the benches and floor duckboards are thermo aspen. Thermal modification with heat and steam removes the sugars that make wood prone to rot, so the timber absorbs far less moisture and stays dimensionally stable outdoors. On this version the exterior is finished in black; the interior timber is unchanged.
Care
The interior timber must be treated to protect it from moisture before use: a specialist sauna finish for walls and ceilings, a bench protection product for the seating, and paraffin oil is also advisable; never use paint or varnish inside, as the wood must breathe. Protect the exterior with a suitable product, reapplied regularly, and ventilate and dry the sauna after each session. On first heating, run the sauna to around 100°C for two hours, well ventilated and without bathing. The full usage and maintenance guide is in the Downloads tab.
Brand
This barrel sauna is designed and sold by Finnmark Sauna, the UK sauna specialist, and manufactured in the Nordics from Thermory thermo spruce.
Warranty
A 2-year manufacturer’s warranty covers the timber structures and housings. Following the usage and maintenance guide in the Downloads tab is a condition of the warranty.
Ordering & Delivery
The sauna ships flat-packed in an OSB box measuring 3,040 × 1,250 × 1,020 mm. The price includes a Moffett (rear-forklift) delivery to most mainland UK postcodes, usually within 3–8 working days of dispatch; off-shore and some outlying postcodes are quoted separately. The sauna is an uninsulated outdoor structure, so weather conditions can influence heat-up times through the seasons. The Delivery & Returns tab carries the full policy.
Delivery
We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.
Returns
We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.
Warranty & Quality Promise
We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.
