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Finnish Sauna Builders

Helsinki Finnish Barrel Sauna with Terrace and WiFi Heater - Finnish Sauna Builders

Helsinki Finnish Barrel Sauna with Terrace and WiFi Heater - Finnish Sauna Builders

$12,910.00 USD
$12,910.00 USD
Sale Sold out
Shipping calculated at checkout.
Exterior Sauna Stain Option
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Harvia Spirit WiFi Heater Rain Jacket Half Moon Back Window

The Helsinki Barrel Sauna with Terrace is a 4-person outdoor barrel sauna kit from Finnish Sauna Builders, crafted from Traditional Northern European Spruce with a chemical-free wood treatment for dimensional stability and weather resistance. The Helsinki includes an integrated terrace and arrives pre-cut and ready to assemble — no specialized tools or cutting required.

Wood

Traditional Northern European Spruce, chemically untreated. The chemical-free treatment process enhances dimensional stability and reduces shrinking for outdoor use.

What’s Included

  • Barrel cradles for ground placement
  • Body staves and wall panels
  • Glass front door
  • Interior benches and backrest staves
  • Duckboard flooring
  • Fasteners and metal bands
  • Rain jacket for weather protection
  • Terrace structure
  • Harvia Spirit SP80 8KW WiFi Heater (model HSPE80U1M, 1-phase) with heater stones

Specifications

Dimension Inches Feet
Exterior Length 70.87 in 5.91 ft
Exterior Width 86.61 in 7.22 ft
Exterior Height 88.98 in 7.42 ft
Inner Width 83.46 in 6.96 ft
Inner Length 51.18 in 4.27 ft
Bench Width 25.59 in 2.13 ft
Bench Length 50.79 in 4.23 ft
Capacity 4 Person
Bench Layout 2-Tier
Terrace Included
Wood Northern European Spruce (chemical-free treatment)
Heater Harvia Spirit SP80 8KW WiFi (HSPE80U1M, 1-phase)
Shipping Weight 2,000 lbs

Assembly

All components arrive pre-cut. Assembly requires no cutting and no specialized tools. A step-by-step installation guide is included.

Resources

Barrel Sauna Comparison Chart

Feature Tampere Vassa Helsinki Turku
Product Image Tampere Barrel Sauna Vassa Barrel Sauna Helsinki Barrel Sauna Turku Barrel Sauna
Capacity 4 Person 6 Person 4 Person 6 Person
Bench Layout 2-Tier 2-Tier 2-Tier 2-Tier
Terrace Included ❌ No ❌ No ✅ Yes ✅ Yes
Exterior Length 70.87 in 94.49 in 70.87 in 94.49 in
Exterior Width 86.61 in 86.61 in 86.61 in 86.61 in
Exterior Height 88.98 in 88.98 in 88.98 in 88.98 in
Inner Width 83.46 in 83.46 in 83.46 in 83.46 in
Inner Length 62.99 in 86.61 in 51.18 in 74.80 in
Bench Width 25.59 in 25.59 in 25.59 in 25.59 in
Bench Length 62.60 in 86.22 in 50.79 in 74.41 in
Wood Material Northern European Spruce Northern European Spruce Northern European Spruce Northern European Spruce
Chemical-Free Treatment ✅ Yes ✅ Yes ✅ Yes ✅ Yes
DIY Assembly ✅ Yes (No Cutting) ✅ Yes (No Cutting) ✅ Yes (No Cutting) ✅ Yes (No Cutting)
Glass Front Door ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Duckboard Flooring ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Heater Included Harvia Spirit SP80 8KW WiFi Harvia Spirit SP80 8KW WiFi Harvia Spirit SP80 8KW WiFi Harvia Spirit SP80 8KW WiFi

Tampere — 4-Person Barrel Sauna

Tampere Barrel Sauna
Capacity
4 Person
Bench Layout
2-Tier
Terrace Included
❌ No
Exterior Length
70.87 in
Exterior Width
86.61 in
Exterior Height
88.98 in
Inner Width
83.46 in
Inner Length
62.99 in
Bench Width
25.59 in
Bench Length
62.60 in
Wood Material
Northern European Spruce
Chemical-Free Treatment
✅ Yes
DIY Assembly
✅ Yes (No Cutting)
Glass Front Door
✅ Yes
Duckboard Flooring
✅ Yes
Heater Included
Harvia Spirit SP80 8KW WiFi

Vassa — 6-Person Barrel Sauna

Vassa Barrel Sauna
Capacity
6 Person
Bench Layout
2-Tier
Terrace Included
❌ No
Exterior Length
94.49 in
Exterior Width
86.61 in
Exterior Height
88.98 in
Inner Width
83.46 in
Inner Length
86.61 in
Bench Width
25.59 in
Bench Length
86.22 in
Wood Material
Northern European Spruce
Chemical-Free Treatment
✅ Yes
DIY Assembly
✅ Yes (No Cutting)
Glass Front Door
✅ Yes
Duckboard Flooring
✅ Yes
Heater Included
Harvia Spirit SP80 8KW WiFi

Helsinki — 4-Person 2-Tier Barrel Sauna with Terrace

Helsinki Barrel Sauna
Capacity
4 Person
Bench Layout
2-Tier
Terrace Included
✅ Yes
Exterior Length
70.87 in
Exterior Width
86.61 in
Exterior Height
88.98 in
Inner Width
83.46 in
Inner Length
51.18 in
Bench Width
25.59 in
Bench Length
50.79 in
Wood Material
Northern European Spruce
Chemical-Free Treatment
✅ Yes
DIY Assembly
✅ Yes (No Cutting)
Glass Front Door
✅ Yes
Duckboard Flooring
✅ Yes
Heater Included
Harvia Spirit SP80 8KW WiFi

Turku — 6-Person Barrel Sauna with Terrace

Turku Barrel Sauna
Capacity
6 Person
Bench Layout
2-Tier
Terrace Included
✅ Yes
Exterior Length
94.49 in
Exterior Width
86.61 in
Exterior Height
88.98 in
Inner Width
83.46 in
Inner Length
74.80 in
Bench Width
25.59 in
Bench Length
74.41 in
Wood Material
Northern European Spruce
Chemical-Free Treatment
✅ Yes
DIY Assembly
✅ Yes (No Cutting)
Glass Front Door
✅ Yes
Duckboard Flooring
✅ Yes
Heater Included
Harvia Spirit SP80 8KW WiFi

Key Differences

Capacity:

  • 4-Person models: Tampere and Helsinki
  • 6-Person models: Vassa and Turku

Terrace:

  • Helsinki and Turku include a terrace; Tampere and Vassa do not

Inner Length (the key differentiator):

  • Helsinki: 51.18 in — compact sauna chamber with space allocated to the terrace
  • Tampere: 62.99 in — compact 4-person footprint
  • Turku: 74.80 in — longer 6-person interior with space allocated to the terrace
  • Vassa: 86.61 in — largest interior, maximum space for 6 people

What’s the Same Across All Models:

  • Traditional Northern European Spruce with chemical-free wood treatment
  • Harvia Spirit SP80 8KW WiFi heater with heater stones included
  • Glass front door, duckboard flooring, interior benches, metal bands, and rain jacket
  • No-cut DIY assembly with installation guide
  • Identical exterior width (86.61 in) and height (88.98 in)

The information presented on this page is for general wellness and educational purposes only. Statements regarding products sold by Serene Lifestyle Co have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Consult a qualified healthcare provider before beginning any new wellness routine, especially if you are pregnant, nursing, or have a pre-existing medical condition.