Finnish Sauna Builders
Carbon Smart Saunas - 5' x 7' x 8' - by Finnish Sauna Builders
Carbon Smart Saunas - 5' x 7' x 8' - by Finnish Sauna Builders
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Carbon Smart Saunas - 5' x 7' 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)
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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 KIP80B 8KW | Harvia Cilindro PC80 8KW | Harvia KIP80W 8KW | Harvia Cilindro PC80E 8KW | Harvia Spirit 8KW | Harvia Virta 8KW |
|---|---|---|---|---|---|---|
| Product Image |  |
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| 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 Cilindro PC80 8KW Built-in Control
Harvia KIP80W 8KW WiFi
Harvia Cilindro PC80E 8KW WiFi
Harvia Spirit 8KW WiFi
Harvia Virta 8KW WiFi with Railing
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 Accessories:
- All models come with heater stones included
- Harvia Virta is the only model that includes a protective safety railing
Health & Wellness Disclaimer
The products available at Zen Wellness Co. — including infrared saunas, cold plunge tubs, massage chairs, jacuzzis, and compression equipment — are intended for general wellness, relaxation, and personal recovery use only. They are not medical devices and are not intended to diagnose, treat, cure, or prevent any disease or medical condition.
Individual results may vary. Always consult a qualified healthcare professional before using any wellness product, particularly if you are pregnant, elderly, have a pre-existing medical condition, or are taking prescription medication. Do not use these products as a substitute for professional medical advice, diagnosis, or treatment.
Zen Wellness Co. makes no therapeutic or medical claims regarding any product sold on this site. Any wellness benefits referenced are based on general use and do not constitute medical endorsement.
