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Carbon Smart Saunas - 6' x 6' x 8' - by Finnish Sauna Builders

Regular price $8,312.00
Wood type
Accessory Packages
Heater
Description

Carbon Smart Saunas - 6' x 6' x 8'


Transform your home into a private wellness retreat with the Carbon Smart™ Indoor Sauna Room Kit. Designed for both homeowners and professional installers, this complete sauna package provides everything needed to create an authentic, spa-quality sauna experience within your space.

Complete Sauna Kit 

Each Carbon Smart™ indoor sauna kit arrives with all interior components precisely cut and tailored to your room dimensions for a streamlined installation process. Simply provide the framing, insulation, electrical wiring, and exterior wall finish — we supply the rest.

Creating a custom sauna experience has never been more accessible.

Premium Thermo Poplar Wood

Carbon Smart™ saunas are crafted exclusively from sustainably sourced Thermo Poplar, a thermally modified wood selected for both its exceptional durability and refined natural aesthetic.

Thermo Poplar undergoes a specialized thermal modification process at approximately 374°F, enhancing dimensional stability while improving resistance to humidity and temperature fluctuations — all without the use of chemicals.

The result is a warm, sophisticated wood finish ideal for creating a naturally beautiful, long-lasting sauna environment. As part of the Carbon Smart™ collection, the wood is responsibly sourced to support carbon-smart forestry practices.

Customizable Bench Configurations

Choose the bench layout that best suits your space and lifestyle from the configuration options shown in the product images. Each layout is thoughtfully designed to maximize both comfort and functionality for an elevated sauna experience.

What's Included 
  • 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.

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.

Heater Options
Feature Harvia KIP80B 8KW Harvia Cilindro PC80 8KW Harvia KIP80W 8KW Harvia Cilindro PC80E 8KW Harvia Spirit 8KW Harvia Virta 8KW
Product Image Harvia KIP80B Sauna Heater Harvia Cilindro PC80 Sauna Heater Harvia KIP80W Sauna Heater Harvia Cilindro PC80E Sauna Heater Harvia Spirit 8KW Sauna Heater Harvia Virta 8KW Sauna Heater
Power Output 8 KW 8 KW 8 KW 8 KW 8 KW 8 KW
Control Type Built-in Control Built-in Control WiFi Control WiFi Control WiFi Control WiFi Control
WiFi Connectivity ❌ No ❌ No ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Heater Stones Included ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
Railing Included ❌ No ❌ No ❌ No ❌ No ❌ No ✅ Yes
Brand Harvia Harvia Harvia Harvia Harvia Harvia
Model Series KIP Series Cilindro Series KIP Series Cilindro Series Spirit Series Virta Series
Model KIP80B PC80 KIP80W PC80E Spirit Virta
Remote Control Manual only Manual only App-based via WiFi App-based via WiFi App-based via WiFi App-based via WiFi

Harvia KIP80B 8KW Built-in Control

Harvia KIP80B Sauna Heater Power Output 8 KW Control Type Built-in Control WiFi Connectivity ❌ No Heater Stones Included ✅ Yes Railing Included ❌ No Brand Harvia Model Series KIP Series Model KIP80B Remote Control Manual only

Harvia Cilindro PC80 8KW Built-in Control

Harvia Cilindro PC80 Sauna Heater Power Output 8 KW Control Type Built-in Control WiFi Connectivity ❌ No Heater Stones Included ✅ Yes Railing Included ❌ No Brand Harvia Model Series Cilindro Series Model PC80 Remote Control Manual only

Harvia KIP80W 8KW WiFi

Harvia KIP80W Sauna Heater Power Output 8 KW Control Type WiFi Control WiFi Connectivity ✅ Yes Heater Stones Included ✅ Yes Railing Included ❌ No Brand Harvia Model Series KIP Series Model KIP80W Remote Control App-based via WiFi

Harvia Cilindro PC80E 8KW WiFi

Harvia Cilindro PC80E Sauna Heater Power Output 8 KW Control Type WiFi Control WiFi Connectivity ✅ Yes Heater Stones Included ✅ Yes Railing Included ❌ No Brand Harvia Model Series Cilindro Series Model PC80E Remote Control App-based via WiFi

Harvia Spirit 8KW WiFi

Harvia Spirit 8KW Sauna Heater Power Output 8 KW Control Type WiFi Control WiFi Connectivity ✅ Yes Heater Stones Included ✅ Yes Railing Included ❌ No Brand Harvia Model Series Spirit Series Model Spirit Remote Control App-based via WiFi

Harvia Virta 8KW WiFi with Railing

Harvia Virta 8KW Sauna Heater Power Output 8 KW Control Type WiFi Control WiFi Connectivity ✅ Yes Heater Stones Included ✅ Yes Railing Included ✅ Yes Brand Harvia Model Series Virta Series Model Virta Remote Control App-based via WiFi


Key Differences

Power & Heating Capacity:

  • All models: 8 KW power output for powerful heating performance in larger sauna rooms

Control & Connectivity:

  • KIP80B & Cilindro PC80: Basic built-in control panel (no remote features)
  • KIP80W, Cilindro PC80E, Spirit & Virta: WiFi-enabled for smartphone control and scheduling

Design & Model Series:

  • KIP Series: Compact wall-mounted design, available in built-in control (KIP80B) and WiFi (KIP80W) versions
  • Cilindro Series: Cylindrical design with large stone capacity, available in standard (PC80) and WiFi-enabled (PC80E) versions
  • Spirit Series: Modern aesthetic with WiFi connectivity and app control
  • Virta Series: Premium model with WiFi control and included protective safety railing

Included Heater Accessories:

  • All models come with heater stones included
  • Harvia Virta is the only model that includes a protective safety railing
Shipping

Enjoy free shipping across the USA. Your Custom Indoor Sauna Room Kit will be processed and shipped within 2–7 business days and delivered to you between 7–21 business days.

Warranty

Finnish Sauna Builders sauna room kits include a manufacturer warranty covering defects in materials and workmanship under normal residential use. Warranty coverage for sauna heaters and accessories may vary by manufacturer, including Harvia and HUUM components.