Finnish Sauna Builders
Helsinki Finnish Barrel Sauna with Terrace and WiFi Heater
Helsinki Finnish Barrel Sauna with Terrace and WiFi Heater
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Helsinki Finnish Barrel Sauna with Terrace and WiFi Heater
A 4-person outdoor barrel sauna with a covered terrace, in Northern European spruce — WiFi heater included.
The Helsinki Finnish Barrel Sauna is a four-person outdoor barrel sauna with an integrated front terrace, designed for backyard wellness spaces, home retreats, and relaxation areas. The terrace adds a sheltered spot to cool down and relax between sessions while keeping the classic barrel look.
Crafted from traditional Northern European spruce, the Helsinki features a glass front door, two-tier interior benches with backrest staves, duckboard flooring, and durable metal bands for a secure structure. A chemical-free wood treatment supports long-term durability while preserving the natural appearance of the wood.
The kit is designed for straightforward DIY assembly with pre-cut components and a step-by-step guide — no cutting required. The included WiFi heater adds convenient, modern heat control to a traditional Finnish-inspired design.
Key Features
- 4-person barrel design with an integrated front terrace
- Traditional Northern European spruce with chemical-free treatment
- Glass front door for an open, welcoming feel
- Two-tier interior benches with backrest staves
- Duckboard flooring and durable metal bands
- Rain jacket included for weather protection
- WiFi electric heater included for modern heat control
- DIY assembly with pre-cut components — no cutting required
Technical Information
The Helsinki is a 4-person barrel sauna with a two-tier bench layout and an integrated terrace.
Exterior dimensions are 70.87 inches long, 86.61 inches wide, and 88.98 inches high.
The interior measures 83.46 inches wide by 51.18 inches long, with benches 25.59 inches wide and 50.79 inches long.
The shorter interior compared with the non-terrace models reflects the space given to the covered front terrace.
It is built from Northern European spruce with a chemical-free wood treatment.
The sauna ships as a DIY kit with pre-cut components and requires no cutting during assembly.
A WiFi electric heater and a rain jacket for weather protection are included.
Full Specifications
| Specification | Detail |
|---|---|
| Model | Helsinki Finnish Barrel Sauna |
| Capacity | 4 Person |
| Bench Layout | 2-Tier |
| Terrace | Included |
| Exterior (L × W × H) | 70.87″ × 86.61″ × 88.98″ |
| Interior (W × L) | 83.46″ × 51.18″ |
| Bench (W × L) | 25.59″ × 50.79″ |
| Wood Material | Northern European Spruce |
| Wood Treatment | Chemical-free |
| Door | Glass front door |
| Flooring | Duckboard |
| Heater | WiFi electric heater included |
| Assembly | DIY, pre-cut (no cutting required) |
| Weather Protection | Rain jacket included |
| Warranty | See Warranty & Returns tab |
In the Box
- Barrel sauna kit with front terrace: cradles, wall panels, fasteners, and metal bands
- Glass front door
- Interior benches and backrest staves
- Duckboard flooring
- Rain jacket for weather protection
- WiFi electric heater
- Pre-cut components and step-by-step assembly guide
Note: Sauna stones are sold separately.
Not sure which sauna or heater size suits your space? Use our Sauna Heater Sizing Guide for guidance.
Documentation
Download the Operations Manual (PDF)
Learn more about the included Harvia Spirit heater (PDF)
Barrel Sauna Range at a Glance
| Feature | Tampere | Vassa | Helsinki | Turku |
|---|---|---|---|---|
| Capacity | 4 Person | 6 Person | 4 Person | 6 Person |
| Terrace | No | No | Yes | Yes |
| Exterior Length | 70.87″ | 94.49″ | 70.87″ | 94.49″ |
| Wood | Spruce | Spruce | Spruce | Spruce |
Frequently Asked Questions
How many people does the Helsinki seat? It is a 4-person barrel sauna with a two-tier bench layout.
Does it include a terrace? Yes — the Helsinki includes an integrated front terrace.
Does it include a heater? Yes — a WiFi electric heater is included. Sauna stones are sold separately.
Is it hard to assemble? No — it ships as a DIY kit with pre-cut components and a step-by-step guide, and no cutting is required.
What wood is it made from? Traditional Northern European spruce with a chemical-free treatment.
What is the warranty? Please see the Warranty & Returns tab for full coverage details.
Share
- Helsinki Finnish Barrel Sauna with Terrace and WiFi Heater
- Key Features
- Technical Information
- Full Specifications
- In the Box
- Documentation
- Barrel Sauna Range at a Glance
- Frequently Asked Questions
A 4-person outdoor barrel sauna with a covered terrace, in Northern European spruce — WiFi heater included.
The Helsinki Finnish Barrel Sauna is a four-person outdoor barrel sauna with an integrated front terrace, designed for backyard wellness spaces, home retreats, and relaxation areas. The terrace adds a sheltered spot to cool down and relax between sessions while keeping the classic barrel look.
Crafted from traditional Northern European spruce, the Helsinki features a glass front door, two-tier interior benches with backrest staves, duckboard flooring, and durable metal bands for a secure structure. A chemical-free wood treatment supports long-term durability while preserving the natural appearance of the wood.
The kit is designed for straightforward DIY assembly with pre-cut components and a step-by-step guide — no cutting required. The included WiFi heater adds convenient, modern heat control to a traditional Finnish-inspired design.
- 4-person barrel design with an integrated front terrace
- Traditional Northern European spruce with chemical-free treatment
- Glass front door for an open, welcoming feel
- Two-tier interior benches with backrest staves
- Duckboard flooring and durable metal bands
- Rain jacket included for weather protection
- WiFi electric heater included for modern heat control
- DIY assembly with pre-cut components — no cutting required
The Helsinki is a 4-person barrel sauna with a two-tier bench layout and an integrated terrace.
Exterior dimensions are 70.87 inches long, 86.61 inches wide, and 88.98 inches high.
The interior measures 83.46 inches wide by 51.18 inches long, with benches 25.59 inches wide and 50.79 inches long.
The shorter interior compared with the non-terrace models reflects the space given to the covered front terrace.
It is built from Northern European spruce with a chemical-free wood treatment.
The sauna ships as a DIY kit with pre-cut components and requires no cutting during assembly.
A WiFi electric heater and a rain jacket for weather protection are included.
| Specification | Detail |
|---|---|
| Model | Helsinki Finnish Barrel Sauna |
| Capacity | 4 Person |
| Bench Layout | 2-Tier |
| Terrace | Included |
| Exterior (L × W × H) | 70.87″ × 86.61″ × 88.98″ |
| Interior (W × L) | 83.46″ × 51.18″ |
| Bench (W × L) | 25.59″ × 50.79″ |
| Wood Material | Northern European Spruce |
| Wood Treatment | Chemical-free |
| Door | Glass front door |
| Flooring | Duckboard |
| Heater | WiFi electric heater included |
| Assembly | DIY, pre-cut (no cutting required) |
| Weather Protection | Rain jacket included |
| Warranty | See Warranty & Returns tab |
- Barrel sauna kit with front terrace: cradles, wall panels, fasteners, and metal bands
- Glass front door
- Interior benches and backrest staves
- Duckboard flooring
- Rain jacket for weather protection
- WiFi electric heater
- Pre-cut components and step-by-step assembly guide
Note: Sauna stones are sold separately.
Not sure which sauna or heater size suits your space? Use our Sauna Heater Sizing Guide for guidance.
| Feature | Tampere | Vassa | Helsinki | Turku |
|---|---|---|---|---|
| Capacity | 4 Person | 6 Person | 4 Person | 6 Person |
| Terrace | No | No | Yes | Yes |
| Exterior Length | 70.87″ | 94.49″ | 70.87″ | 94.49″ |
| Wood | Spruce | Spruce | Spruce | Spruce |
How many people does the Helsinki seat? It is a 4-person barrel sauna with a two-tier bench layout.
Does it include a terrace? Yes — the Helsinki includes an integrated front terrace.
Does it include a heater? Yes — a WiFi electric heater is included. Sauna stones are sold separately.
Is it hard to assemble? No — it ships as a DIY kit with pre-cut components and a step-by-step guide, and no cutting is required.
What wood is it made from? Traditional Northern European spruce with a chemical-free treatment.
What is the warranty? Please see the Warranty & Returns tab for full coverage details.