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SAUNABOX

SaunaBox® Forge 1-Person: Traditional Finnish Sauna

SaunaBox® Forge 1-Person: Traditional Finnish Sauna

$4,990.00 USD
$5,500.00 USD $4,990.00 USD
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FORGE-OUT

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Meet the Forge™ — a precision-built outdoor sauna crafted for those who take recovery seriously. Designed with architectural intention and wrapped in 100% Canadian Hemlock, Forge blends natural warmth with modern edge. Clean lines. Black-tinted tempered glass. Soft ambient lighting. Every detail is engineered to elevate the ritual.

The powerful 3.5kW wall-mounted heater reaches temperatures up to 220°F, delivering a deep, enveloping heat that rivals traditional spa-grade saunas. 

Built for outdoor performance and year-round durability, Forge is weather-resistant and engineered to withstand the elements—rain, sun, and snow alike.

Key Features

  • 100% Canadian Hemlock Construction
    Naturally aromatic, sustainably sourced, moisture-resistant, and built to last.
  • Reaches Up to 220°F
    Deep, immersive heat for serious sweat sessions.
  • 3.5kW Wall-Mounted Heater
    Powerful, consistent performance. 
  • Black-Tinted Tempered Glass Door
    Sleek privacy with a modern architectural feel
  • Integrated Ambient Lighting
    Soft illumination designed for a calming, refined atmosphere.
  • Weather-Resistant Outdoor Design
    Built specifically for exterior installation.
  • Complete Accessory Kit Included
    Sauna rocks, water bucket & ladle, and wooden foot stool.

Product Specifications


  • Harvia Vega Compact 3.5 kW electric heater — Finnish commercial-grade, the same unit used in professional spa installations worldwide
  • Heats to 170°F in approximately 25 minutes from a cold start
  • Heats to 220°F in approximately 40 minutes from a cold start
  • Full-length tempered glass door with matte black hinges and Saunabox-branded horizontal pull handle
  • Matte black aluminum exterior paneling over a cedar frame — built for year-round outdoor use
  • Canadian hemlock interior — light-toned, low-resin, low-odor wood that stays cool to the touch at full temperature
  • Single bench with ergonomic S-shaped backrest for extended, comfortable sessions
  • RGB LED ambient lighting (color-selectable) under the bench and overhead
  • Slatted wood flooring — elevated for drainage and barefoot comfort
  • Active ventilation system: 1 fan + 2 vents (intake + exhaust)
  • Louvered black vent panel on the exterior for passive airflow
  • Raised feet for ground clearance — promotes drainage and airflow underneath the cabin
  • Hardwired 240V installation — no cords, no adapters, permanent setup
  • Compact outdoor footprint: 1.10 m wide × 1.05 m deep (43.3 × 41.3 in)
  • Matte black hardware throughout — hinges, handle, vent panel, and accessories

Dimensions

Exterior

• External Height: 2.05 m / 6′ 8¾″ (80.71 in)

• External Width: 1.10 m / 3′ 7⁵⁄₁₆″ (43.31 in)

• External Depth: 1.05 m / 3′ 5⁵⁄₁₆″ (41.34 in)

Interior

• Internal Height: 1.85 m / 6′ 0¹³⁄₁₆″ (72.83 in)

• Internal Width: 1.00 m / 3′ 3³⁄₈″ (39.37 in)

• Internal Depth: 0.96 m / 3′ 1¹³⁄₁₆″ (37.80 in)
Door

• Door Glass Height: 1.65 m / 5′ 4¹⁵⁄₁₆″ (64.96 in)

• Door Glass Width: 0.60 m / 1′ 11⁵⁄₈″ (23.62 in)
Bench

• Bench Height (floor to top of bench): 0.67 m / 2′ 2³⁄₈″ (26.38 in)

• Bench Depth (front to back): 0.52 m / 1′ 8½″ (20.47 in)

• Bench Slat Thickness: 6 cm / 2.36 in


Electrical Specifications

• Heater: Harvia Vega Compact BU — 3.5 kW (Model #HCBU352401)

• Voltage: 240V

• Current Draw: 14.4A

• Breaker: Dedicated double-pole breaker (typically 20A — confirm with local electrician)

• Wire Gauge: 14/2 copper conductor

• Installation: Hardwired — must be installed by a licensed electrician

• Cord/Plug: Not included

• Alternative Configuration: Harvia Vega Compact 1.9 kW / 120V available (Model #HCBU1912241) — contact SaunaBox before ordering


Power Draw

• Heater (Harvia Vega Compact): 3,500W / 3.5 kW

• Lighting (RGB LED strip): 60W

• Ventilation fan: 60W

• Total peak power draw: ~3,620W


Temperature & Airflow

• Maximum operating temperature: 220°F (104.4°C)

• Heat-up time to 170°F: ~25 minutes from cold start

• Heat-up time to 220°F: ~40 minutes from cold start

• Heater capacity rating: 70.5 – 175 cu ft (Harvia-rated for the 3.5 kW Vega Compact)

• Ventilation: Active — passive intake/exhaust vents plus powered fan circulation

• Fan count: 1 (60W)

• Vent count: 2 (intake + exhaust)


Materials & Finnish

• Interior wood: Canadian Hemlock

• Exterior cladding: Matte black aluminum paneling

• Exterior framing: Cedar

• Door: Full-length tempered glass

• Door hardware: Matte black hinges + horizontal Saunabox-branded pull handle

• Side ventilation: Louvered black panel

• Interior lighting: RGB LED strip (color-selectable ambient)

• Seating: Single bench with S-shaped ergonomic backrest

• Flooring: Elevated slatted wood

• Hardware finish: Matte black throughout

• Base: Raised feet (ground clearance for drainage and airflow)


Weight & Shipping

• Unit net weight (assembled product): 214 kg / 471.8 lb

• Gross shipping weight (product + crate): 259 kg / 571.0 lb

• Packaging: 1 consolidated plywood crate (~45 kg)

• Crate external dimensions (L × W × H): 216 × 151 × 96 cm / 85.0 × 59.4 × 37.8 in

• Crate shipping volume: 3.131 m³ / 110.6 cu ft

• Shipping method: LTL freight

• Handling requirement: Forklift or 2-person team + pallet jack

Electrical Setup

The Forge is hardwired to a dedicated 240V circuit and must be installed by a licensed electrician. This is not a plug-in sauna. The electrical connection is a one-time installation — once it is done, the sauna operates with no ongoing electrical maintenance.

What electrical circuit does The Forge require?

A dedicated double-pole 240V circuit, typically protected by a 20A double-pole breaker. The heater draws 14.4A at operating load. Confirm the exact breaker size with your local electrician.