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Carbon Smart Saunas - 7' x 9' x 8' - by Finnish Sauna Builders

$11,540.00
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Carbon Smart Saunas - 7' x 9' x 8'


Transform your home into a wellness retreat with the Carbon Smart™ Indoor Sauna Room Kit. This complete sauna package includes everything you need to build an authentic sauna experience, whether you're a DIY enthusiast or a professional contractor.

Complete Sauna Kit - Ready for Your Space

Our Carbon Smart™ indoor sauna kit arrives with all interior components precisely cut and tailored to your room dimensions. Simply provide the framing, insulation, electrical wiring, and exterior wall covering—we supply the rest. Building your dream sauna has never been easier or more affordable.

Premium Thermo Poplar Wood

Carbon Smart™ saunas are crafted exclusively with Thermo Poplar, a sustainably sourced and thermally modified wood that delivers exceptional performance and a beautiful aesthetic for your sauna interior.

Thermo Poplar

A thermally modified wood treated at approximately 374°F for optimal indoor sauna use. This medium modification delivers enhanced dimensional stability, improved resistance to humidity and temperature fluctuations, and a warm, rich tone—all achieved through a chemical-free process. Ideal for creating a naturally beautiful, long-lasting sauna environment. As part of the Carbon Smart™ line, this wood is responsibly sourced to support carbon-smart forestry practices.

Customizable Bench Configurations

Choose the bench layout that best fits your space and needs from our selection of configurations shown in the product images. Each configuration is designed to maximize comfort and optimize your sauna experience.

What's Included in Your Carbon Smart™ Sauna Kit:

  • Foil vapor barrier for proper moisture protection
  • Ergonomic backrests for comfortable relaxation
  • 1×4 tongue & groove boards (walls & ceiling) in Thermo Poplar
  • Clear 1×4 bench boards with supports (20″ deep) in Thermo Poplar—custom-built to your chosen configuration
  • Corner moldings for walls, ceiling, and baseboards (Thermo Poplar)
  • All-glass sauna door with wood handles and trim
    • Frame: 27.2″ × 78.7″ (690 × 2000 mm)
    • Glass: 24.4″ × 77.3″ (620 × 1963 mm)
    • Frame thickness: 1.65″ × 3.6″ (42 × 92 mm)
    • Rough opening required: 28″ × 80″
  • Duckboard flooring for walk area (Thermo Poplar)
  • Upper and lower vent grills for proper air circulation
  • Traditional sauna bucket with liner and ladle
  • Sauna thermometer for temperature monitoring
  • Comfortable headrest
  • Marine-grade, wall-mount, vapor-proof sauna light
  • Detailed installation instructions for easy assembly

Important Installation Notes:

  • Recommended ceiling height is 8 feet per manufacturer safety and clearance guidelines. For custom ceiling heights, please contact our support team.

Perfect for Home or Commercial Use

Whether you're building a personal wellness sanctuary or outfitting a spa or gym, our Carbon Smart™ DIY sauna kits deliver professional-quality materials at competitive prices.

Expert Support Available

Contact your Carbon Smart™ Specialist today for personalized guidance in creating the perfect sauna room for you and your family.

Note: Your sauna shipment will include an all-glass door, though some photos may display a glass wall for reference. Backrests are shipped flat; if you'd like an angled backrest, additional spacers can be easily created on-site to achieve your desired pitch.

Note: Wall boards run in the standard horizontal direction unless room width exceeds 8 ft; in such cases, an interior seam will be added where two boards meet to span the width.

Sauna Heater Comparison Chart

Feature Harvia Cilindro 11KW Harvia Club 10KW Harvia Virta 10.5KW Harvia Virta Combi 10.5KW
Product Image Harvia Cilindro 11KW Sauna Heater Harvia Club 10KW Sauna Heater Harvia Virta 10.5KW Sauna Heater Harvia Virta Combi 10.5KW Sauna Heater
Power Output 11 KW 10 KW 10.5 KW 10.5 KW
Brand Harvia Harvia Harvia Harvia
Control Type WiFi Control WiFi Control WiFi Control WiFi Control
WiFi Connectivity ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Heater Stones Included ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Railing Included ❌ No ❌ No ✅ Yes ✅ Yes
Combi Steam Function ❌ No ❌ No ❌ No ✅ Yes
Model Series Cilindro Series Club Series Virta Series Virta Combi Series
Model Cilindro Club Virta Virta Combi
Remote Control App-based via WiFi App-based via WiFi App-based via WiFi App-based via WiFi

Harvia Cilindro 11KW WiFi

Harvia Cilindro 11KW Sauna Heater
Power Output
11 KW
Brand
Harvia
Control Type
WiFi Control
WiFi Connectivity
✅ Yes
Heater Stones Included
✅ Yes
Railing Included
❌ No
Combi Steam Function
❌ No
Model Series
Cilindro Series
Model
Cilindro
Remote Control
App-based via WiFi

Harvia Club 10KW WiFi

Harvia Club 10KW Sauna Heater
Power Output
10 KW
Brand
Harvia
Control Type
WiFi Control
WiFi Connectivity
✅ Yes
Heater Stones Included
✅ Yes
Railing Included
❌ No
Combi Steam Function
❌ No
Model Series
Club Series
Model
Club
Remote Control
App-based via WiFi

Harvia Virta 10.5KW WiFi with Railing

Harvia Virta 10.5KW Sauna Heater
Power Output
10.5 KW
Brand
Harvia
Control Type
WiFi Control
WiFi Connectivity
✅ Yes
Heater Stones Included
✅ Yes
Railing Included
✅ Yes
Combi Steam Function
❌ No
Model Series
Virta Series
Model
Virta
Remote Control
App-based via WiFi

Harvia Virta Combi 10.5KW WiFi with Railing

Harvia Virta Combi 10.5KW Sauna Heater
Power Output
10.5 KW
Brand
Harvia
Control Type
WiFi Control
WiFi Connectivity
✅ Yes
Heater Stones Included
✅ Yes
Railing Included
✅ Yes
Combi Steam Function
✅ Yes
Model Series
Virta Combi Series
Model
Virta Combi
Remote Control
App-based via WiFi

Key Differences

Power Output:

  • Harvia Cilindro: Highest output at 11 KW — ideal for the largest sauna rooms
  • Harvia Virta & Virta Combi: 10.5 KW — powerful performance with premium features
  • Harvia Club: 10 KW — strong output in a commercial-grade floor-standing design

Control & Connectivity:

  • All four models feature full WiFi connectivity with app-based remote control and scheduling

Design & Model Series:

  • Cilindro Series: Iconic tall cylindrical design with massive stone capacity — the highest output in this lineup at 11 KW
  • Club Series: Floor-standing commercial-grade design built for high-capacity and heavy-duty use at 10 KW
  • Virta Series: Premium wall-mounted heater with WiFi, safety railing, and 10.5 KW output
  • Virta Combi Series: Everything the Virta offers, plus an integrated steam generator for a combined sauna and steam bath experience

Included Accessories:

  • All models come with heater stones included
  • Harvia Virta and Virta Combi both include a protective safety railing
  • Harvia Virta Combi is the only model with a built-in Combi steam function — delivering both traditional dry sauna heat and steam in one unit
Carbon Smart Saunas - 7' x 9' x 8' - by Finnish Sauna Builders
Carbon Smart Saunas - 7' x 9' x 8' - by Finnish Sauna Builders Thermo Poplar / No Accessories / No Heater
$11,540.00
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Frequently asked questions

Do you offer free shipping?

Yes! We provide free shipping on most orders within the continental U.S. Certain exclusions may apply depending on the brand or delivery location.

Can I speak to someone before ordering?

Of course! Our support team is available by phone, email, or live chat to answer any questions about specs, shipping, setup, or finding the right wellness solution for your space and goals. Feel free to reach out any time.

How do I know which cold plunge or sauna fits my space?

Each product listing includes detailed specs and dimensions. If you need help, our support team is happy to guide you through measurements and fit questions.

What payment methods do you accept?

We accept major credit cards, debit cards, and other secure payment methods available through our checkout to ensure a safe and convenient purchasing experience.