Harvia Block Large Indoor Traditional Sauna

Complete Specifications & System Overview
  • Product name: Harvia Block Large Indoor Sauna
  • Product type: Premium indoor traditional sauna
  • Model: SHB2020ALD
  • Capacity: Up to 5 people
  • Heating method: Traditional electric stone heating
  • Heater: Harvia Virta 9.0 kW electric heater
  • Control: Harvia Xenio Wi-Fi digital touch control
  • Lighting: Integrated remote-controlled RGBW LED lighting
  • Exterior material: Heat-treated brushed alder
  • Interior material: Heat-treated brushed alder
  • Bench material: Aspen over a structural spruce frame
  • Front wall: Silk-printed tempered safety glass
  • Door: Clear 8 mm tempered safety glass
  • Insulation: 30 mm high-performance PIR insulation
  • Installation format: Prefabricated element cabin
  • Orientation: Right- or left-handed configuration
  • Intended environment: Residential indoor installation
  • Manufactured in Finland

Manufacturer & Country of Origin

Manufactured by Harvia Oyj
Muurame, Finland

Country of origin: Finland

What’s Included

  • One complete Harvia Block Large indoor sauna cabin
  • Prefabricated insulated wall and ceiling elements
  • Heat-treated brushed alder exterior surfaces
  • Heat-treated brushed alder interior surfaces
  • Structural spruce bench framing
  • Smooth aspen seating boards
  • Multi-level L-shaped bench system
  • Silk-printed tempered safety-glass front wall
  • Clear 8 mm tempered-glass entrance door
  • Black glass framing and door hardware
  • High-performance 30 mm PIR insulation
  • Adjustable foundational legs
  • Harvia Virta 9.0 kW electric heater
  • Full-capacity set of Harvia sauna stones
  • Harvia Xenio Wi-Fi digital touch control
  • Xenio power unit
  • Temperature sensor
  • Door sensor and remote-start safety equipment
  • Integrated remote-controlled RGBW LED lighting
  • Lighting receiver and power supply
  • Preplanned cable-routing provisions
  • Concealed structural fittings
  • Complete structural assembly hardware
  • Cabin and equipment installation instructions

Electrical installation, delivery, unloading, placement, flooring, waterproofing, drainage, mechanical ventilation, site preparation, professional assembly, permits, and licensed trade services are separate unless specifically included on the client’s invoice.

  • Exterior width: 1,980 mm / 78 in.
  • Exterior depth: 2,000 mm / 78.7 in.
  • Exterior height: 2,100 mm / 82.7 in.
  • Approximate footprint: 6.5 × 6.6 ft.
  • Capacity: Up to 5 people
  • Approximate packaged height: 1,210 mm / 47.6 in.
  • Approximate packaged width: 2,380 mm / 93.7 in.
  • Approximate packaged depth: 1,360 mm / 53.5 in.
  • Approximate gross packaged weight: 600 kg / 1,323 lb.
  • Installation location: Floor-mounted

Product dimensions do not include required installation clearances, assembly space, electrical equipment, ventilation provisions, trim tolerances, or future service access.

  • Exterior width: 1,980 mm / 78 in.
  • Exterior depth: 2,000 mm / 78.7 in.
  • Exterior height: 2,100 mm / 82.7 in.
  • Approximate footprint: 6.5 × 6.6 ft.
  • Capacity: Up to 5 people
  • Approximate packaged height: 1,210 mm / 47.6 in.
  • Approximate packaged width: 2,380 mm / 93.7 in.
  • Approximate packaged depth: 1,360 mm / 53.5 in.
  • Approximate gross packaged weight: 600 kg / 1,323 lb.
  • Installation location: Floor-mounted

Product dimensions do not include required installation clearances, assembly space, electrical equipment, ventilation provisions, trim tolerances, or future service access.

  • Clean Scandinavian architectural profile
  • Heat-treated brushed alder exterior
  • Warm, naturally deepened wood tone
  • Brushed surface texture
  • Full-width glass façade
  • Silk-printed glass detailing
  • Black structural glass framing
  • Clear glass entrance door
  • Concealed structural fittings
  • Clean exterior transitions
  • Right- and left-handed configurations
  • Designed for integration into a finished interior environment

Natural variations in color, grain, texture, and tone are expected characteristics of genuine heat-treated wood.

  • Designed for up to 5 occupants
  • Multi-level L-shaped seating
  • Elevated upper bench
  • Lower bench and foot platform
  • Structural spruce bench frame
  • Smooth aspen seating surfaces
  • Aspen selected for comfortable contact at elevated temperatures
  • Open-profile bench construction
  • Generous continuous seating
  • Bench layout coordinated with the heater position
  • Required heater clearances preserved
  • Full glass frontage increases perceived interior space
  • Open sightlines connect the sauna with the surrounding room
  • Interior proportions support seated group use

The practical seating capacity may vary according to occupant size, heater clearances, safety accessories, and preferred spacing.

  • Exterior surface: Heat-treated brushed alder
  • Interior surface: Heat-treated brushed alder
  • Bench surface material: Aspen
  • Bench structural frame: Spruce
  • Visible wood quality: Premium, generally knotless surfaces
  • Front wall: Silk-printed tempered safety glass
  • Door: Clear tempered safety glass
  • Door thickness: 8 mm
  • Glass framing: Black
  • Wall and ceiling format: Prefabricated insulated elements
  • Insulation: 30 mm PIR board
  • Structural fittings: Concealed where designed
  • Base support: Adjustable foundational legs
  • Electrical routing: Preplanned within the cabin structure
  • Installation format: Precision-manufactured element system
  • Factory process: Handcrafted and test-assembled in Finland

  • Heat treatment deepens the alder’s natural color
  • Brushing emphasizes the wood grain
  • Thermal modification improves dimensional stability
  • Reduced moisture movement supports sauna conditions
  • Warm brown tones create visual depth
  • Interior and exterior surfaces are coordinated
  • Material remains genuine wood and varies naturally
  • Only sauna-approved cleaners and treatments should be used

Thermal modification does not make the wood waterproof, maintenance-free, or immune to staining, scratching, fading, or moisture damage.

  • Smooth, fine-grained seating surface
  • Light natural tone
  • Comfortable against the skin at elevated temperatures
  • Low tendency to splinter when correctly maintained
  • Reduced heat absorption compared with denser woods
  • Installed over a durable structural spruce frame
  • Coordinated with the darker thermo-alder interior
  • Requires routine cleaning and drying
  • 30 mm high-performance PIR insulation
  • Thermal performance described by Harvia as approximately comparable to 60 mm of conventional rock-wool insulation
  • Slim insulated wall construction
  • Supports faster cabin heating
  • Supports dependable heat retention
  • Reduces unnecessary heat loss
  • Helps maintain stable interior temperatures
  • Glass frontage included in the heater-sizing calculation
  • Tight-fitting prefabricated elements
  • Correct wall, ceiling, glass, and door installation required

Open joints, missing seals, incorrect assembly, or unsuitable ventilation may reduce thermal performance.

  • Traditional electric sauna heating
  • Floor-standing Harvia Virta heater
  • 9.0 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 airflow supports heating performance
  • Heating elements separated from direct stone pressure
  • Front-mounted service hatch
  • Replaceable heating-element module
  • Controlled through the included Xenio Wi-Fi control

Harvia Virta 9.0 kW Heater Specifications

  • Heater family: Harvia Virta
  • Common North American model: HL9U1 or current equivalent
  • Nominal output: 9.0 kW
  • Operating voltage: 240 V AC
  • Phase: Single phase
  • Frequency: 60 Hz
  • Approximate nominal current: 37.5 A
  • Recommended room volume: Approximately 177–494 cu. ft. / 5–14 m³
  • Approximate width: 415 mm / 16.3 in.
  • Approximate depth: 340 mm / 13.4 in.
  • Approximate height: 840 mm / 33.1 in.
  • Heater weight without stones: Approximately 23 kg / 50.7 lb.
  • Stone capacity: Approximately 50 kg / 110 lb.
  • Required stone size: Approximately 50–100 mm / 2–4 in.
  • Minimum published room height: Approximately 1,900 mm / 75 in.
  • Floor-standing installation
  • External control power unit required
  • Front-access service hatch

The supplied heater nameplate and current Harvia installation manual govern final electrical requirements, stone loading, safety clearances, and installation.

  • Full required quantity included
  • Harvia-approved Finnish sauna stones
  • Approximate total capacity: 50 kg / 110 lb.
  • Required stone size: Approximately 50–100 mm / 2–4 in.
  • Natural stone shapes support airflow
  • Large stone mass supports stable heat
  • Stones must be stacked according to the Virta manual
  • Stones must not place direct pressure on the heating elements
  • Open airflow must be maintained through the heater
  • Water may be applied only as directed
  • Natural variations in stone size, shape, and color are expected
  • Designed for traditional high-temperature sauna use
  • Final temperature range governed by the Xenio control and regional safety settings
  • 9.0 kW output selected for the cabin volume and glass frontage
  • High stone capacity supports stable temperatures
  • Water applied to the stones produces adjustable steam
  • Multi-level seating provides different perceived heat zones
  • PIR insulation supports efficient heating
  • Insulated element construction supports heat retention
  • Heat-up time depends on ambient temperature, ventilation, electrical supply, stone loading, and starting conditions
  • Frequent door openings may increase heating time
  • Cabin ventilation affects heat distribution and performance

Harvia Virta Heater

  • Nominal output: 9.0 kW
  • Operating voltage: 240 V AC
  • Phase: Single phase
  • Frequency: 60 Hz
  • Approximate nominal current: 37.5 A
  • Dedicated, hardwired electrical circuit required
  • Final breaker size must follow the heater nameplate and current Harvia manual
  • Conductor size determined by electrical load, distance, temperature rating, and local code
  • Proper equipment grounding required
  • Sauna-rated, heat-resistant conductors required where applicable
  • No extension cords or power strips
  • Licensed electrician required
  • Electrical permit and inspection may be required

Xenio Control and Accessories

Electrical provisions must also be coordinated for:

  • Xenio power unit
  • Xenio Wi-Fi touch panel
  • Temperature sensor
  • Door sensor
  • Remote-start safety equipment
  • RGBW LED lighting
  • Lighting receiver and power supply
  • Mechanical ventilation equipment, if required

The final electrical schedule must be based on the exact supplied model numbers and local electrical code.

The Harvia Xenio Wi-Fi control provides digital and connected operation of the Virta heater.

Features include:

  • Illuminated digital touch controls
  • Wi-Fi connectivity
  • MyHarvia mobile-app access
  • Remote heater start
  • Remote temperature adjustment
  • Heating-status monitoring
  • Sauna-ready notifications
  • Timed starting
  • Weekly scheduling
  • Session-time adjustment
  • Temperature calibration
  • Power-outage memory
  • Door-sensor monitoring
  • Remote-start safety status
  • Lighting control when connected
  • Ventilation control when compatible equipment is connected
  • Software-supported features through the MyHarvia application

The control panel should be positioned where it can maintain a reliable Wi-Fi connection.

Remote operation requires the door sensor and all specified safety equipment to be installed and activated. The heater and surrounding area must be clear before any scheduled or remote start.

  • Integrated multi-color LED lighting
  • Remote-controlled operation
  • Red, green, blue, and white light channels
  • Multiple color selections
  • Adjustable lighting modes
  • Ambient interior illumination
  • Architectural integration with the cabin
  • Low-profile LED installation
  • Independent lighting receiver
  • Dedicated lighting power supply
  • Heat-appropriate components in approved locations
  • Designed to complement the glass, thermo alder, and aspen interior

The lighting requires a separate or coordinated electrical connection from the heater circuit.

  • Full-width glass façade
  • Silk-printed tempered safety glass
  • Clear tempered-glass entrance door
  • Door thickness: 8 mm
  • Black structural framing
  • Black door knob
  • Open interior sightlines
  • Increased natural light
  • Creates a visually larger interior
  • Installed as part of the cabin assembly
  • Requires careful multi-person handling
  • Door alignment must be verified after leveling
  • Chipped or damaged glass must not be installed
  • Glass must not contact tile, stone, metal, or other hard surfaces during installation
  • Dedicated sauna ventilation required
  • Fresh-air intake supports heater performance
  • Exhaust pathway supports air exchange
  • Ventilation assists with drying after use
  • Intake and exhaust locations coordinated with the Virta heater
  • Temperature-sensor position coordinated with airflow
  • Airflow should not create a direct draft across the benches
  • Mechanical fans, external ductwork, grilles, and HVAC labor are separate unless listed on the invoice
  • Compatible ventilation equipment may be controlled through the Xenio system
  • Final ventilation design must follow the cabin and heater instructions
  • Ventilation openings must remain unobstructed
  • Adjustable legs beneath the cabin structure
  • Supports accurate cabin alignment
  • Helps compensate for minor floor variation
  • Improves stability of the structural shell
  • Separates designated wood components from direct floor contact
  • Does not replace required floor leveling
  • Does not replace waterproofing or drainage
  • Must remain accessible during initial leveling and inspection

  • Indoor installation only
  • Requires a stable, level, load-bearing floor
  • Floor must support the cabin, heater, stones, occupants, and surrounding finishes
  • Packaged cabin weight is approximately 600 kg / 1,323 lb.
  • Structural review may be required for elevated or framed floors
  • Flooring should be heat resistant, moisture resistant, durable, 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 floor drain must be coordinated according to local code
  • Delivery access must accommodate oversized and exceptionally heavy components
  • Adequate ceiling and side clearance must be provided for assembly
  • Required heater clearances must be maintained
  • Future service access must remain available
  • Delivered as a prefabricated element cabin
  • Components may arrive in multiple packages
  • Approximate gross packaged weight: 600 kg / 1,323 lb.
  • Approximate largest packaged length: 2,380 mm / 93.7 in.
  • Freight delivery does not automatically include unloading or inside placement
  • Delivery route must be confirmed in advance
  • Doorways, hallways, elevators, stairs, gates, and turning clearances must be measured
  • Floor and elevator weight limits must be verified
  • Dry, protected storage may be required before assembly
  • Glass and finished wood components must remain protected
  • All packages should be inspected immediately for visible freight damage
  • Delivered in a prefabricated element format
  • Adjustable foundation leveled before wall installation
  • Precision-manufactured wall elements
  • Concealed structural fittings
  • Wall components secured according to the assembly sequence
  • Ceiling elements installed after wall alignment
  • Glass front and door installed with supplied hardware
  • Bench framing and seating installed according to the layout drawings
  • Heater clearances established before final installation
  • Electrical, sensor, lighting, and ventilation routes planned before the cabin is closed
  • Cabin test-assembled in Finland before delivery
  • Complete structural assembly hardware included
  • Installation instructions included
  • Professional assembly strongly recommended
  • Multiple installers required for large structural and glass elements
  • Licensed electrician required
  • Qualified ventilation trade required where applicable
  • Heater and power-unit service access must remain available
  • Final operational and safety testing required before use
  • Harvia warranty covers qualifying material and manufacturing defects under its published terms
  • Cabin, heater, control, lighting, and accessory warranty periods may differ
  • Residential and commercial warranty terms differ
  • Final coverage is governed by the written warranty supplied with each product
  • Proof of purchase, exact model number, and serial number should be retained
  • Correct installation, operation, and maintenance are required
  • Improper electrical work may affect warranty coverage
  • Incorrect assembly or unauthorized modification may be excluded
  • Unsuitable site conditions and moisture damage may be excluded
  • Door uses 8 mm tempered safety glass
  • North American heater and control components must carry the required 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 open or partially open
  • Operate ventilation as needed to dry the cabin
  • Use bench towels to protect the aspen surfaces
  • Clean wood with warm water and a mild sauna-approved cleaner
  • Clean in the direction of the wood grain
  • Avoid chlorine, harsh chemicals, pressure washing, and abrasive products
  • Use only Harvia-approved wood treatments
  • Clean glass with a non-abrasive, glass-safe product
  • Keep the foundational area free of standing water and debris
  • Inspect adjustable legs and structural connections
  • Inspect bench framing and seating boards
  • Inspect glass fittings, door alignment, and hardware
  • Keep ventilation openings unobstructed
  • Inspect lighting components regularly
  • Inspect and restack sauna stones at least annually
  • Replace cracked, crumbling, or heavily deteriorated stones
  • Maintain open airflow between the stones
  • Follow the Virta manual when loading or replacing stones
  • Keep the heater’s front service hatch accessible
  • Inspect the Xenio control, temperature sensor, and door sensor
  • Arrange qualified electrical and safety inspections when required