Vassa Finnish Barrel Sauna with WiFi Heater – Finnish Sauna Builders

 

Product Description

The Vassa Finnish Barrel Sauna is a spacious 6‑person outdoor wellness retreat designed to deliver an authentic Finnish sauna experience. Built with exceptional craftsmanship and Traditional Northern European Spruce, this sauna blends durability, efficiency, and timeless Nordic design—making it an ideal centerpiece for families and groups seeking daily relaxation, recovery, and connection.

Its classic barrel shape maximizes interior space while promoting even, consistent heat distribution. The generous interior length provides the largest sauna chamber in the Finnish Sauna Builders lineup, offering ample room for comfortable seating and shared wellness sessions. Every component undergoes a chemical‑free wood treatment that enhances stability, reduces shrinking, and ensures long‑lasting performance in all weather conditions.

With pre‑cut components and a detailed assembly guide, the Vassa Barrel Sauna offers a straightforward DIY installation—no cutting or specialized tools required. The included 8KW Spirit WiFi Heater provides smart, customizable heat control, allowing you to tailor each session to your preferred temperature and schedule.

Features

• Spacious 6‑person barrel design for families and group gatherings

• Crafted from Traditional Northern European Spruce with chemical‑free treatment

• Largest interior length in the lineup for maximum comfort

• Efficient heat distribution thanks to the classic barrel shape

• 8KW Spirit WiFi Heater for smart, customizable heat control

• Glass front door for natural light and a modern aesthetic

• Interior benches, backrest staves, and duckboard flooring for comfort

• Rain jacket included for year‑round weather protection

• Pre‑cut components for easy DIY assembly—no cutting required

• Metal bands and fasteners for a secure, seamless build

Specifications

Model: Vassa Barrel Sauna Capacity: 6 persons Wood Type: Traditional Northern European Spruce Heater: 8KW Spirit WiFi Heater Terrace: Not included Assembly: DIY, no cutting required

Dimensions

Specification	Inches	Feet
Exterior Length	94.49 in	7.87 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	86.61 in	7.22 ft
Bench Width	25.59 in	2.13 ft
Bench Length	86.22 in	7.19 ft

 

Model Comparison

Capacity

• 4‑Person Models: Tampere, Helsinki

• 6‑Person Models: Vassa, Turku

Terrace

• Included: Helsinki, Turku

• Not Included: Tampere, Vassa

Interior Length

• Helsinki: 51.18 in (compact interior + terrace)

• Tampere: 62.99 in (compact 4‑person)

• Turku: 74.80 in (extended 6‑person interior + terrace)

• Vassa: 86.61 in (largest 6‑person interior)

Shared Features Across All Models

• Traditional Northern European Spruce

• Chemical‑free wood treatment

• 8KW KIP‑B heater

• Glass front door

• Duckboard flooring

• Interior benches

• Metal bands

• Tool‑free, no‑cut DIY assembly

• Identical exterior width and height

Assembly

DIY assembly required. All components arrive pre‑cut with a detailed step‑by‑step guide for easy installation.

Warranty

Includes a comprehensive warranty.

Manuals

👉 Click here to download the Operations Manual

👉 Click here know everything about the Harvia Spirit Heater