Harvia Fenix Large Indoor Traditional Sauna

Complete Specifications & System Overview
  • Product name: Harvia Fenix Large Indoor Traditional Sauna
  • Product type: Indoor traditional sauna
  • Model: Fenix 2020
  • Model number: SHF2020S
  • Capacity: 1–6 people
  • Heater: Commercial-grade Harvia Virta 10.5 kW
  • Heating method: Traditional electric stone heater
  • Installation format: Insulated, flat-packed element cabin
  • Assembly orientation: Configurable right or left
  • Intended environment: Indoor dry-area installation
  • Exterior: Black-treated Nordic spruce
  • Interior: Light natural aspen
  • Front glazing: Two panoramic glass panels and one glass door
  • Manufactured in Finland

What’s Included

  • One complete Harvia Fenix Large structural wood cabin shell
  • Black-treated Nordic spruce exterior
  • Light aspen interior
  • Insulated wall and ceiling elements
  • Roof frame and finishing rim
  • Commercial-grade Harvia Virta 10.5 kW electric heater
  • Full-capacity set of Finnish sauna stones
  • Two full-height panoramic tempered-glass panels
  • One reversible 8 mm tempered-glass door
  • Designer door-handle set
  • Door hinges and glass-installation profiles
  • Premium multi-level aspen seating
  • Aspen backrests
  • Intermediate bench panel
  • Integrated ventilation opening
  • Heater-mounting provisions
  • Heavy-duty structural assembly hardware
  • Flat-pack installation guide

Electrical work, external heater controls, lighting, mechanical ventilation, delivery, flooring, site preparation, and professional assembly are separate unless specifically included on the client’s invoice.

  • Exterior width: Approximately 2060 mm / 81.1 in.
  • Exterior depth: Approximately 2033 mm / 80.0 in.
  • Exterior height: Approximately 2016 mm / 79.4 in.
  • Capacity: 1–6 people
  • Net cabin weight: Approximately 360 kg / 794 lb., excluding heater and stones
  • Published gross shipping weight: Approximately 460 kg / 1,014 lb.
  • Package width: Approximately 1150 mm / 45.3 in.
  • Package depth: Approximately 2100 mm / 82.7 in.
  • Package height: Approximately 1070 mm / 42.1 in.
  • Approximate structural wall thickness: 75 mm / 3.0 in.

Final dimensions and shipping measurements should be verified against the documentation supplied with the cabin.

  • Dark architectural exterior
  • Black-treated Nordic spruce paneling
  • 15 mm tongue-and-groove finish boards
  • Full-height glazed front wall
  • Two clear panoramic glass panels
  • Integrated clear-glass entrance door
  • Low-profile structural framing
  • Roof finishing rim
  • Configurable mirrored layout
  • Water-based black wood treatment
  • Low-VOC treated panel surfaces
  • Premium multi-level aspen seating
  • Primary upper bench: Approximately 1865 × 600 mm
  • Secondary upper bench: Approximately 1165 × 500 mm
  • Additional upper bench: Approximately 582 × 500 mm
  • Lower bench: Approximately 1865 × 500 mm
  • Coordinating aspen backrests
  • Intermediate bench screen
  • Structural bench supports and legs
  • Wide upper bench supports seated or partially reclined use
  • Lower bench improves entry and foot positioning
  • Multiple levels provide access to different heat zones
  • Light aspen remains comfortable against the skin
  • Full-height glazing creates an open connection with the surrounding room
  • Interior may be assembled in a right- or left-oriented configuration
  • Structural format: Prefabricated element cabin
  • Exterior wood: Dense Nordic spruce
  • Exterior treatment: Water-based black stain
  • Interior wood: Light natural aspen
  • Bench material: Aspen
  • Backrest material: Aspen
  • Wall finish: 15 mm tongue-and-groove boards
  • Approximate wall thickness: 75 mm
  • Glazing: Single-pane tempered safety glass
  • Glass thickness: 8 mm
  • Heavy-duty tongue-and-groove bench construction
  • Structural base frame
  • Prefabricated wall elements
  • Dedicated electrical wall element
  • Dedicated ventilation wall element
  • Insulated roof elements
  • Inner and outer corner trims
  • Aluminum glass-installation profiles
  • Heavy-duty assembly hardware

Natural variations in timber color, grain, knots, and minor movement are expected characteristics of genuine wood.

  • Approximately 50 mm of structural insulation
  • Glass-fiber insulation
  • Approximate insulation performance: 0.037 W/m·K
  • Aluminum-foil vapor barrier
  • Insulated wall elements
  • Insulated ceiling elements
  • Approximately 75 mm total wall construction
  • Insulation supports efficient faster warm-up and improved heat retention
  • Vapor barrier helps manage moisture within the inside the the structural elements
  • Panoramic glazing is accounted for through the 10.5 kW heater selection
  • Traditional electric sauna heating
  • Floor-standing Harvia Virta heater
  • 10.5 kW heating output
  • High-capacity stone compartment
  • Radiant and convective heat
  • Water may be applied to the stones to create leil
  • Large stone mass supports stable heat and generous steam
  • Internal heater airflow supports efficient warm-up
  • Heating elements are separated from direct stone pressure
  • Front-access maintenance hatch
  • Replaceable heating-element module
  • External digital control required
  • Heater family: Harvia Virta
  • Common North American model: HL11U1 or current equivalent
  • Nominal output: 10.5 kW
  • Operating voltage: 240 V AC
  • Phase: Single phase
  • Frequency: 60 Hz
  • Approximate width: 415 mm / 16.3 in.
  • Approximate depth: 410 mm / 16.1 in.
  • Approximate height: 840 mm / 33.1 in.
  • Approximate heater weight without stones: 23–32 kg / 51–71 lb., depending on the supplied regional model
  • Approximate full stone capacity: 68–70 kg / 150–154 lb.
  • Required stone size: Approximately 50–100 mm / 2–4 in.
  • Minimum published room height: Approximately 1900 mm / 75 in.
  • Compact safety clearances
  • Floor-standing installation
  • External Harvia control and power unit required
  • Front-mounted service access

The supplied heater nameplate and installation manual govern the final dimensions, stone quantity, current draw, safety distances, and control compatibility.

  • Full required quantity included
  • Harvia-approved Finnish sauna stones
  • Approximately 150–154 lb. / 68–70 kg, subject to the supplied heater model
  • Stone size matched to the Virta heater
  • Natural stone shapes support airflow through the heater
  • Large stone mass supports sustained heat and generous steam
  • Stones must be arranged according to the Virta installation manual
  • Stones must not place direct pressure against the heating elements
  • Only approved sauna stones should be used
  • Natural variations in stone size, shape, and color are expected
  • Designed for traditional high-temperature sauna use
  • Final temperature range is governed by the selected external control
  • 10.5 kW output supports the larger cabin and panoramic glass frontage
  • High-capacity stone load supports stable heat
  • Water applied to the stones produces adjustable steam
  • Multi-level benches provide different perceived temperature zones
  • Insulated walls and ceiling support heat retention
  • Full-height glazing is included in the heater selection
  • Heat-up time depends on ambient temperature, ventilation, electrical conditions, and starting temperature
  • Water quantity and stone temperature influence steam intensity

Harvia Virta Heater

  • Nominal output: 10.5 kW
  • Operating voltage: 240 V AC
  • Phase: Single phase
  • Frequency: 60 Hz
  • Approximate nominal current: 43.75 A
  • Dedicated, hardwired circuit required
  • External Harvia control and power unit required
  • Proper grounding required
  • Heat-rated conductors required in designated hot areas
  • Final breaker, conductor, disconnect, and grounding requirements must follow the heater nameplate and current manual
  • A 60 A branch circuit is commonly specified for this configuration, subject to manufacturer documentation and local code
  • No extension cords or power strips
  • Installation by a licensed electrician required

Additional Electrical Planning

Separate or coordinated provisions may be required for:

  • Harvia control power unit
  • Digital control panel
  • Temperature sensor
  • Door sensor
  • Remote-start safety equipment
  • Optional lighting
  • Optional mechanical ventilation

The final electrical schedule must be prepared using the exact heater and control model numbers supplied.

A compatible external Harvia control is required to operate the Virta heater but is not included unless specifically shown on the final invoice.

Available control features may include:

  • Digital temperature control
  • Session-time control
  • Delayed start
  • Heating-status display
  • Wi-Fi connectivity
  • MyHarvia mobile access
  • Remote start
  • Weekly scheduling
  • Sauna-ready notifications
  • Temperature monitoring
  • Lighting control
  • Ventilation control
  • Door-sensor monitoring
  • Overheat protection

Remote operation requires compatible safety equipment and must comply with Harvia’s instructions.

RGBW LED lighting is available for the Fenix Large but is not included unless shown on the final invoice.

Available lighting features may include:

  • RGBW color lighting
  • Dedicated white light
  • Remote-controlled color selection
  • Bench and backrest illumination
  • Multiple lighting zones
  • Harvia color-light control
  • DMX driver
  • Dedicated lighting power supply

Lighting must use heat-appropriate components installed in approved locations.

  • Two full-height panoramic tempered-glass panels
  • Individual panel dimensions: Approximately 629 × 1939 × 8 mm
  • One single-pane tempered-glass door
  • Door dimensions: Approximately 600 × 1897 × 8 mm
  • Reversible left- or right-hinged installation
  • Designer wood-and-metal handle set
  • Two heavy-duty door hinges
  • Aluminum glass-retaining profiles
  • Clear safety glazing
  • Full-height sightlines
  • Glass-installation hardware included

The two panoramic panels form the glazed front wall beside the entrance door.

  • Integrated ventilation opening included
  • Ventilation slit: Approximately 260 × 87 × 20 mm
  • Supply and exhaust planning must support the Virta heater
  • Fresh-air intake supports heater performance
  • Exhaust airflow supports drying after use
  • Ventilation should not create a direct draft across the benches
  • Mechanical fans, ductwork, grilles, and HVAC labor are not included
  • Final ventilation design must follow the cabin and heater installation manuals
  • Ventilation locations should be finalized before cabin placement
  • Indoor dry-area installation only
  • Requires a level, stable, load-bearing floor
  • Floor must support the cabin, heater, full stone load, occupants, and surrounding finishes
  • Flooring should be heat resistant, moisture resistant, and cleanable
  • Waterproofing, tile work, drainage, and floor transitions are site-preparation items
  • Plumbing is not required for normal operation
  • Water is applied manually to the heater stones
  • Any required floor drain must be coordinated according to local code
  • Delivery access must accommodate long wall, roof, bench, and glass components
  • Adequate ceiling and side clearance must be provided for assembly
  • Future service access to the heater and control equipment must be maintained
  • Delivered in a flat-pack format
  • Prefabricated structural elements
  • Base frame assembled first
  • Wall elements secured to the base frame
  • Dedicated electrical and ventilation elements included
  • Roof elements installed after the walls
  • Glass panels and door installed using supplied profiles and hardware
  • Benches may be installed in a right- or left-oriented layout
  • Heavy-duty structural hardware included
  • Flat-pack installation guide included
  • Two-person minimum assembly recommended by Harvia
  • Professional assembly recommended
  • Licensed electrician required for the heater and controls
  • Glass components require careful multi-person handling
  • Heater clearances must be established before final bench installation
  • Electrical, control, lighting, sensor, and ventilation routes should be planned before assembly
  • Harvia warranty covers qualifying material and manufacturing defects under its published terms
  • Cabin and heater warranty periods may differ
  • Residential and commercial warranty terms differ
  • Coverage requires correct installation, operation, and maintenance
  • Improper electrical work, incorrect assembly, misuse, unauthorized modification, unsuitable site conditions, and inadequate maintenance may be excluded
  • Front panels and door use 8 mm tempered safety glass
  • North American heater and control components must carry the appropriate regional certifications
  • Final certifications must be verified against the exact supplied model numbers
  • Electrical inspection and approval must follow local requirements
  • Remove visible moisture after use
  • Leave the glass door partially open
  • Allow ventilation to dry the cabin
  • Use bench towels to protect the aspen surfaces
  • Clean the cabin with a damp cloth and warm water
  • Use only Harvia-approved cleaning products
  • Clean in the direction of the wood grain
  • Avoid chlorine, abrasive products, and harsh household chemicals
  • Do not lacquer interior sauna surfaces
  • Use only approved wood treatments
  • Clean glass with a non-abrasive, glass-safe product
  • Inspect benches, backrests, supports, glass fittings, door hardware, and ventilation openings regularly
  • Inspect and restack sauna stones at least annually
  • Replace cracked, crumbling, or heavily discolored stones
  • Maintain open airflow between the stones
  • Follow the Virta manual when loading or replacing stones
  • Keep the heater’s front maintenance hatch accessible
  • Arrange qualified electrical and safety inspections as required
  • If the cabin remains unused for an extended period, Harvia recommends heating it approximately once each month