Thermasol Astra
- Seats 3 to 4
- Indoor sauna room
- Hardwired heater install
- Heat type. Dry sauna
- Product scope. Complete indoor sauna room
- Capacity. Seats 3 to 4 people.
Ships in about 4 to 6 weeks, then freight delivery is scheduled with you. Free shipping to the lower 48.
Delivery, warranty & returns
Fit and setup: Approx. 85.4 in W x 85.4 in D x 83 in H. Allow additional installation clearances and service access. 9kW Harvia Virta. Hardwired installation. A licensed electrician must confirm the exact model manual, circuit design, clearances, and applicable local requirements before ordering.
Delivery: Ships in about 4 to 6 weeks. Freight delivery is scheduled with you after dispatch; transit time depends on your location. Delivery is available to the contiguous United States. Arrange suitable access and a prepared site; a crane or forklift is recommended for offload but not required. Assembly, final placement, and electrical work are separate unless expressly included.
Warranty: Manufacturer limited warranty terms are specific to the room and its components. Request the current written coverage, exclusions, installation requirements, and registration deadlines for this model before ordering. Heater coverage does not establish coverage for the complete room.
Eligible unused items in original packaging: 30-day returns, with a 25% restocking fee and customer-paid return freight. Those charges do not apply to damaged, defective or incorrect items. Custom or made-to-order items are excluded.
Read full return termsProduct description
The Thermasol Astra is a complete indoor sauna room for 3-4 people, with glass and wood panels in a corner layout. It runs on a 9kW Harvia Virta heater.
What's included:
- Complete room kit with brushed Tyrol wood walls and thermally modified aspen benches
- Transparent glass and wood panels in a corner layout
- RGB LED lighting with remote control
- Multi-layer wall construction with natural wood fiber insulation
- A 9kW Harvia Virta heater with WiFi control
Heater stones and WiFi control included.
Approx. exterior dimensions: 85.4" x 85.4" x 83".
Door: available in a left or right corner layout. Choose the door side when ordering.
Plan the installation, clearances, access, and electrical work before ordering.
Ships in about 4 to 6 weeks. Freight delivery is scheduled with you after dispatch; transit time depends on your location. Delivery is available to the contiguous United States. Arrange suitable access and a prepared site; a crane or forklift is recommended for offload but not required. Assembly, final placement, and electrical work are separate unless expressly included.
Pairs well with
Glass and warm wood
Half glass, half wood, tucked into a corner.
Glass on one side, warm wood on the other. You take the bench by the wood wall, where the room feels sheltered, and still catch the light through the glass panels. Three or four of you, and nobody feels on display.
- Place Left or right corner Choose the corner layout that fits your room when you order.
- Warm 9 kW Harvia Virta The heater brings the room up to temperature while you get ready. Heater stones and WiFi control included.
- Dim Set the light Remote-controlled color LEDs set the mood inside.
What the room is made of
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Glass and wood together
Transparent glass panels mixed with wood give you light without feeling exposed.
Glass and wood panels, corner layout
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Natural surfaces inside
Brushed Tyrol wood walls and thermally modified aspen benches.
Wood fiber insulated multi-layer walls
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Sized for three or four
A square footprint that fits a free corner of a larger room.
Approx. 85.4 x 85.4 x 83 in
The honest math
$11 a session
$23,604, used 4 times a week for 10 years, works out to about $11 per session, before installation, electrical work and power. Your own rhythm sets the real number.
Why we carry it
Astra mixes glass and wood panels, for people who want daylight in the sauna and a bit of privacy too. Plan the corner, the electrical work and delivery timing with us before you order.
Dry sauna | Complete indoor room
Glass and warm wood, set into a corner.
Astra combines glass and wood panels, Tyrol wood walls, aspen benches, LED lighting, and a 9 kW Harvia Virta heater in one indoor sauna for three to four people.
- 3 to 4person capacity
- 9 kWHarvia Virta heater
- 85 x 85 inexterior footprint
A corner room that keeps the space open.
Astra is a complete indoor sauna, not a heater sold without a room. Glass panels and a corner layout keep it light in a modern interior, while brushed Tyrol wood walls, thermally modified aspen benches, and remote-controlled lighting make the inside feel warm and natural.
Heat type
Dry sauna
An electric heater warms stones and the room air. Water on the stones can add short bursts of humidity, but this is not a steam room.
Product scope
Complete indoor sauna room
Includes the enclosure, benches, heater, stones, glass panels, and lighting.
Capacity
Seats 3 to 4 people.
Exterior dimensions are about 85.4 x 85.4 x 83 inches.
Door side
Left or right corner layout.
Choose the door side when ordering.
Control
9 kW Harvia Virta heater with WiFi control.
Confirm the electrical plan before ordering.
Delivery
Ships in about 4 to 6 weeks by freight.
Freight delivery is scheduled with you after dispatch; transit time depends on your location.
Connected features
Heater stones and WiFi control included.
Remote app features may require separate paid MyHarvia activation. Confirm current compatibility and charges before purchase.
Electrical requirements, clearances, and final site readiness must be confirmed before installation.
Product details
Have a question?Specifications & setup
Approx. 85.4 in W x 85.4 in D x 83 in H. Allow additional installation clearances and service access.
9kW Harvia Virta. Hardwired installation. A licensed electrician must confirm the exact model manual, circuit design, clearances, and applicable local requirements before ordering.
Indoor rooms with a free corner for a three-to-four-person sauna that mixes glass and warm wood.
Delivery & returns
Ships in about 4 to 6 weeks. Freight delivery is scheduled with you after dispatch; transit time depends on your location. Delivery is available to the contiguous United States. Arrange suitable access and a prepared site; a crane or forklift is recommended for offload but not required. Assembly, final placement, and electrical work are separate unless expressly included.
Warranty & care
Manufacturer limited warranty terms are specific to the room and its components. Request the current written coverage, exclusions, installation requirements, and registration deadlines for this model before ordering. Heater coverage does not establish coverage for the complete room.
Heater stones are included. Proper stone maintenance is required to keep the manufacturer's warranty valid.
These products are not intended to diagnose, treat, cure, or prevent any disease. Read the full disclaimer.
Support
Before you order
How does delivery work?
Availability, dispatch timing, carrier transit and delivery service are specific to the selected product. Read the delivery information on this page and contact us before ordering to confirm the current estimate, shipping charge and access requirements. Assembly, placement and electrical work are separate from standard delivery unless expressly included.
What is covered by warranty?
Warranty coverage is specific to the manufacturer, model and component. Review the product warranty information and request the applicable written terms before ordering. Installation, registration, maintenance and intended use can affect coverage. A heater warranty does not establish coverage for the entire sauna room.
Can I return it?
Return eligibility depends on the product and its condition. Custom and made-to-order products are not eligible for a standard return. Review our Return & Refund Policy and confirm the selected configuration before ordering.
Can I pay over time?
Eligible orders may show Shop Pay Installments through Affirm at checkout. Availability, rates, terms and approval depend on the provider and your application.
How do I check the space and installation?
Send us your room dimensions, intended location and delivery access details through the fit check. Confirm the exact equipment, clearances and electrical plan with your qualified installer before ordering. Product dimensions are not installation clearances.
Questions? We are here to help.
Email us or use chat for product, setup or order questions.
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