The Auroom Terra S is a fully assembled outdoor traditional sauna constructed around a substantial cross-laminated timber structure. Its waxed dark-gray alder interior, selectable bench materials, architectural glazing, concealed lighting, and thermo-pine exterior create a permanent outdoor sauna with a refined, contemporary presence.

The Terra S is the sauna-only configuration within the Terra collection. It does not include the changing and relaxation area found in the larger Terra M.

MERIDIAN configures the Terra S with the Saunum AirPerfect 7 and Saunum AirIQ Wi‑Fi, combining traditional stone-heated performance with active heat and steam equalization, three-speed airflow, and connected climate control.

Manufacturer

• Cabin manufacturer: Auroom OÜ
• Manufacturing location: Vana-Kastre, Estonia
• Heater manufacturer: Saunum
• Manufacturing origin: Estonia
• Cabin model: Terra S
• Product type: Fully assembled outdoor traditional sauna
• Intended use: Residential outdoor installation
• Manufacturer-recommended occupancy: Approximately two to three people
• Published distributor capacity: Up to five people
• Interior layout: One manufacturer-designed layout
• Door orientation: Left- or right-handed

What Is Included

Terra S Cabin

• Fully assembled Terra S sauna structure
• 70 mm three-layer cross-laminated timber construction
• Insulated outdoor wall, floor, and roof assemblies
• Painted and impregnated structural base
• Natural or black thermo-pine exterior cladding
• Waxed dark-gray alder interior wall and ceiling cladding
• Client-selected sauna benches
• Coordinated backrest
• Bench supports
• Bench skirts
• Removable wooden floor grids
• Waterproof PVC floor covering
• Double-glazed tempered-glass door
• Triple-glazed tempered-glass windows
• UV-protected pine window and door frames
• Integrated LED lighting
• Waterproof roof assembly
• Gutter and downspout system
• Manufacturer documentation

MERIDIAN Heating Package

• Saunum AirPerfect 7 electric sauna heater
• Integrated heat-and-steam equalizing system
• Saunum AirIQ Wi‑Fi control panel
• AirIQ power unit
• Temperature sensor
• Door sensor
• Required heater-to-controller cables
• Manufacturer-approved sauna stones
• Himalayan salt spheres, when included with the confirmed package
• Installation and operating documentation

The client’s approved estimate determines the final package contents.

Sauna Accessories

A promotional sauna-accessory package may include:

• Sauna bucket
• Ladle
• Thermometer
• Hygrometer
• Sand timer
• Aroma set
• Sauna hat
• Sauna pillow

Accessories must be confirmed on the approved estimate because supplier promotions and package contents may change.

Items Not Included Unless Specified

• Freight and delivery
• Crane or forklift service
• Rigging and final placement
• Foundation construction
• Electrical service and connection
• Weatherproof control enclosures
• Drainage or landscaping work
• Permits and inspections
• Integrated audio
• Chromotherapy
• Changing or relaxation room
• Third-party installation services

• Exterior width: Approximately 101.6 inches
• Exterior depth: Approximately 86.6 inches
• Exterior height: Approximately 98.4 inches
• Metric dimensions: Approximately 258 × 220 × 250 cm
• Exterior footprint: Approximately 61 square feet
• Manufacturer-published cabin weight: Approximately 4,409 pounds, excluding heater
• Manufacturer-published metric weight: Approximately 2,000 kg, excluding heater

Current U.S. distributor listings publish transportation weights ranging from approximately 5,200 to 5,800 pounds. Final shipping documentation must govern foundation, lifting, crane, forklift, and rigging calculations.

Current published interior dimensions are approximately:

• Interior width: 86.3 inches
• Interior depth: 56.2 inches
• Interior height: 80 inches
• Published sauna-room volume: Approximately 224.6 cubic feet
• Manufacturer-recommended occupancy: Two to three people
• Maximum published distributor capacity: Up to five people

Final heater sizing must use adjusted room volume, including the thermal effect of the glass door, windows, outdoor exposure, and local climate.

• Multi-level bench configuration
• Upper and lower seating
• Coordinated backrest
• Bench skirts
• Removable wooden floor grids
• Open floor area around the heater
• Clear architectural glazing
• Concealed LED illumination
• One fixed manufacturer-designed layout
• Left- or right-handed entrance configuration

Bench dimensions and clearances must follow the final production drawing.

Waxed Dark-Gray Alder Walls

The wall and ceiling cladding are finished in waxed dark-gray alder, creating a rich architectural background for the lighter or warmer bench materials.

Natural Alder Benches

Natural alder provides a coordinated tonal relationship with the alder walls while introducing a lighter, more organic seating surface.

Natural Aspen Benches

Natural aspen creates a brighter contrast against the dark-gray wall cladding and has a smooth, comfortable surface.

Thermo-Aspen Benches

Thermo-aspen introduces deeper golden tones, greater dimensional stability, and relatively low thermal conductivity.

The selected bench material must be identified on the approved estimate.

Materials and Construction

• Primary structure: 70 mm three-layer cross-laminated timber
• Wall construction: Substantial insulated outdoor assembly
• Interior wall cladding: Waxed dark-gray alder
• Bench options: Natural alder, natural aspen, or thermo-aspen
• Exterior cladding: Thermally modified pine
• Exterior profile: C7
• Structural base: Impregnated wooden beams painted black
• Floor covering: Waterproof PVC
• Floor grids: Removable wood grids with anti-slip rubber strips
• Interior fasteners: Concealed where visible
• Installation format: Factory-assembled module

Cross-laminated timber provides structural rigidity, dimensional stability, and substantial thermal mass.

Natural variations in wood tone, grain, knots, and texture are expected.

Exterior Finish Options

Natural Thermo-Pine

The natural exterior is finished with protective oil, preserving the grain and knotted character of the thermally modified pine.

Black Thermo-Pine

The black exterior uses a translucent protective finish that allows the timber texture to remain visible while creating a more defined architectural profile.

Both finishes require periodic inspection and maintenance based on climate and exposure.

Glazing and Doors

• Double-glazed tempered-glass entrance door
• Triple-glazed tempered-glass windows
• Clear glass finish
• UV-protective glazing
• Rehpol wood-framed door and window construction
• Black painted pine frames
• Left- or right-handed door configuration
• Exterior-rated door hardware

The insulated glazing supports outdoor thermal performance while preserving natural light and views.

The Saunum AirPerfect combines a traditional electric stone heater with an integrated climate-equalizing system.

The heater draws hotter air from the upper portion of the sauna, blends it with cooler air from below, and returns a more balanced mixture to the occupied area. This helps reduce the extreme head-to-foot temperature differences commonly experienced in conventional electric saunas.

Saunum AirPerfect 7

• Heater model: AirPerfect 7
• Nominal output: 7 kW
• Published electrical output: Approximately 6.9 kW
• Operating voltage: 240V
• Phase: Single-phase
• Rated amperage: Approximately 28.75A
• Published room range: Approximately 210–350 adjusted cubic feet
• Minimum ceiling height: Approximately 77 inches
• Approximate heater dimensions: 45.6 × 19.1 × 14.1 inches
• Approximate heater weight: 121 pounds
• Stone capacity: Approximately 99–121 pounds
• Airflow settings: Three
• Water-resistance rating: IPX4
• Finish: Confirmed on the approved estimate

The Terra S has a published raw room volume of approximately 224.6 cubic feet. Final sizing must include the thermal effect of its glazed surfaces and outdoor installation conditions before the heater is ordered.

Heat and Steam Equalization

The AirPerfect climate system:

• Draws hotter air from the upper cabin
• Collects cooler air from the lower cabin
• Blends the separate air layers
• Redistributes warmth through the occupied area
• Helps reduce cold feet
• Helps reduce excessive head-level heat
• Circulates steam more consistently
• Provides three adjustable airflow speeds
• Supports personalized sauna profiles

The selected airflow speed may be managed through the AirIQ control.

Sauna Stones

• Manufacturer-approved stones included as confirmed
• Approximate heater capacity of 99–121 pounds
• Stone quantity confirmed with the final heating package
• Suitable for applying water
• Installed according to the AirPerfect manual
• Periodic inspection and restacking required
• Deteriorated stones must be replaced

Only stones approved for the Saunum AirPerfect should be used.

Himalayan Salt Spheres

The AirPerfect incorporates a removable salt and aroma tray designed to accept compatible Himalayan salt spheres.

• Salt spheres included when confirmed on the approved estimate
• Positioned within the heater’s air-circulation path
• Removable for inspection and replacement
• Compatible with the manufacturer-designed salt tray
• Must not obstruct required airflow

No medical or therapeutic outcome is guaranteed.

Temperature and Performance

• Heating type: Traditional electric stone heater
• Control range: Approximately 104–194°F
• Traditional high-temperature settings: Available
• Milder, more humid settings: Available
• Airflow speeds: Three
• Custom sauna profiles: Up to three
• Humidity: Created by applying water to heated stones
• Heat retention: Supported by CLT and insulated construction
• Warm-up time: Varies with weather, glazing, starting temperature, and airflow settings

Saunum AirIQ Wi‑Fi Control

The AirIQ control system provides:

• Touchscreen operation
• Wi‑Fi connectivity
• Saunum mobile-app compatibility
• Remote temperature monitoring
• Remote start where permitted
• Weekly scheduling
• Operating-time control
• Three customizable sauna profiles
• Climate-device speed control
• Lighting control
• Heater-status information
• Door-status monitoring
• Child-lock function
• Temperature-unit selection
• Connected software updates

Reliable Wi‑Fi coverage must reach the Terra S location.

Remote starting requires the supplied door sensor and compliance with applicable safety requirements.

The Terra S heating package requires:

• 240V single-phase electrical service
• Dedicated hardwired heater circuit
• Approximately 28.75A operating load
• Circuit protection sized under the current Saunum manual and local code
• Copper conductors
• Neutral and equipment grounding conductors where specified
• AirIQ power-unit connection
• Temperature- and door-sensor wiring
• Separate 120V service for cabin lighting where required
• Outdoor-rated conduit and junction boxes
• Exterior disconnect where required
• Weatherproof enclosure for externally located equipment
• Licensed electrical installation

The older European 400V three-phase specification does not apply to the North American MERIDIAN configuration.

The equipment labels, current Saunum manual, and local electrical authority govern final breaker and conductor sizing.

• Integrated LED lighting
• Lighting positioned beneath the benches or within the backrest area according to the production configuration
• Warm architectural illumination
• Dimmable operation
• Remote control
• Concealed light source
• AirIQ lighting control when properly connected

Chromotherapy is not standard.

The Terra S and Saunum AirPerfect do not carry a published low-EMF or near-zero-EMF designation. No numerical EMF claim should be made without configuration-specific testing.

Audio and Entertainment

Integrated audio is not standard.

Optional equipment may include:

• Sauna-compatible speakers
• Bluetooth audio player
• Concealed low-voltage wiring
• Wi‑Fi-connected audio equipment

All equipment must be approved for its temperature, humidity, and installation location.

• Manufacturer-planned fresh-air intake and exhaust openings
• Active Saunum climate equalization
• Three adjustable circulation speeds
• Vent placement coordinated with the AirPerfect
• Temperature sensor installed according to Saunum requirements
• Ventilation openings kept unobstructed
• Required airflow maintained around the heater
• Optional mechanical ventilation only when separately designed

The AirPerfect’s circulation system supplements proper sauna ventilation; it does not replace the required fresh-air intake and exhaust paths.

• Waterproof PVC floor covering
• Removable wooden floor grids
• Rubber strips beneath the grids
• Moisture separation between the grids and floor
• Site drainage required
• Roof runoff directed toward the gutter and downspout
• Foundation graded to prevent standing water

Water used inside the sauna must not accumulate beneath the cabin or around electrical components.

• Slightly pitched outdoor roof
• Water directed toward the rear of the cabin
• Integrated gutter
• Downspout discharge
• Exterior-grade waterproofing
• Site-designed drainage away from the foundation

The downspout discharge location must be confirmed before final placement.

The Terra S requires:

• Stable, level, non-settling foundation
• Concrete slab recommended by Auroom
• Adequate support for the completed cabin weight
• Positive drainage away from the structure
• Electrical supply prepared before placement
• Required setbacks and permits
• Clear access for crane or forklift
• Sufficient overhead lifting clearance
• Exterior maintenance access
• Reliable Wi‑Fi coverage
• Final location confirmed before delivery

Alternative foundations require structural approval.

The Terra S is transported as one fully assembled cabin.

Delivery requirements generally include:

• Specialized or flatbed freight
• Scheduled delivery appointment
• Crane or appropriately rated forklift
• Qualified lifting operator
• Approved rigging equipment
• Prepared foundation before arrival
• Clear truck and equipment access
• Adequate turning and staging space
• Client or contractor present at delivery
• Immediate inspection for freight damage
• Final positioning directly onto the foundation

The freight carrier provides transportation only unless additional services are expressly included. Crane service, forklift service, rigging, unloading, and final placement are separate.

• Cabin delivered fully assembled
• No structural cabin assembly normally required
• Final placement completed by crane or forklift
• Foundation checked for level before placement
• AirPerfect heater installed or finalized on site
• Sauna stones placed after final positioning
• AirIQ power unit and control panel connected
• Sensors and door-safety equipment commissioned
• Electrical service connected by a licensed electrician
• Gutter and downspout discharge verified
• Complete installation inspected before energizing

“Fully assembled” does not mean that the sauna arrives electrically connected or ready for immediate operation.

Installation may require coordination among:

• Foundation or concrete contractor
• Structural engineer
• Freight carrier
• Crane or forklift provider
• Qualified rigger
• Licensed electrician
• Drainage or landscaping contractor
• Sauna technician
• Local building and electrical authorities

MERIDIAN may assist with coordination as defined in the Client Agreement. Freight, lifting, foundation work, electrical work, drainage, permits, and inspections are billed separately unless expressly included.