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✓ In Stock — ready to ship

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

Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
SKU sku-48203141513457
Original price $11,540.00 - Original price $18,837.10
Original price
$11,540.00
$11,540.00 - $18,837.10
Current price $11,540.00

✓ Free Shipping Over $999 On Parcel Orders To The Lower 48 — Freight Items Rated At Checkout

✓ Pay Over Time With Shop Pay — 4 Interest-Free Payments Under $1,000; Monthly Plans Above

✓ Price Match Guarantee On Eligible Offers (Terms Apply)

✓ Questions? - Call ‪646-921-5221

Request a quote
Why Choose Peak Flow Fitness?

Talk To A Real Live Sales Expert: Whether you're just starting your fitness journey or outfitting a full commercial gym, we've got the experience to guide you every step of the way.

Shipping: Parcel orders over $999 ship free to the lower 48; oversized and freight items are rated at checkout. Alaska and Hawaii buyers email us for a shipping quote. No sales taxes outside New York.

Price Match Guarantee: Find the same item for less at an authorized US online retailer and we'll match eligible offers (terms apply; MAP-protected items excluded).

Bulk Pricing and Volume Discounts: The more you purchase, the more you save. Collaborate with a dedicated Select Account Rep for custom pricing on all your gym equipment needs, all in one place.

30-Day Returns: Most items can be returned within 30 days of delivery. Restocking fees and condition requirements vary by brand — see our Return & Refund Policy for the terms that apply to your item.

Customers Nationwide: We've helped customers across the country elevate their fitness, and we're ready to help you too.

Genuine Products: New equipment comes with the manufacturer's warranty where applicable; certified pre-owned items carry the warranty stated on their product page.

Nationwide Installation Partners: Need help setting up your new equipment? Our nationwide installation partners have you covered, so you can focus on your fitness goals.

A Wide Selection: From the specialized fitness and sports equipment to the latest recovery technology, we offer a wide range of products to meet your fitness and health needs. Shop online or reach out to us for even more options!

Shipping & Delivery

Please allow 1-3 business days for processing. Once processed, your order will be packed and prepared for shipment within the handling time specified for each product in your order. If for any reason it will be much longer than this, we will contact you immediately.

Delivery Method: 

Once your order is shipped, we will send another email with the tracking number.

Orders under about 100 Lbs. ship UPS/FedEx ground. Large, heavy, or multi-unit orders ship LTL/FREIGHT with a curbside delivery appointment.

Transit Time:

Once shipped, your order will be in transit on its way to you. Standard ground shipments typically take 5–15 business days, and freight orders 7–21 business days.

Assembly Notice:

Most products are delivered in pieces and require assembly. Complexity varies by item, so feel free to reach out for details on a specific product.

Need a hand? We have a network of installers we can refer you to for assistance with setup. Contact us at 646-921-5221 with any questions pre or post purchase.

Cancellation/Returns

Orders can be canceled before they ship. A 3% payment-processing fee may be deducted from your refund; orders that have already shipped are handled as returns.

Custom, Built-To-Order, on demand products cannot be canceled or refunded after 24 hours, as these products are put into production specifically for your order. 

Damaged Items:

Please inspect your delivery and report any shipping damage within 48 hours of delivery; we will repair or replace any item damaged during shipment or faulty on arrival. New items carry the manufacturer's warranty; pre-owned items and spare parts carry the warranty stated on their product page.

Returns And Refunds:

Except for certain equipment and items identified below, your purchase is protected by our 30-day return policy.

To be eligible for a return:

  • Must be within 30 days of delivery (or the manufacturer's specific return window).
  • Condition requirements vary by brand. Most brands require the item to be in its original packaging and in new, resellable condition — see our Return & Refund Policy for your item.
  • Customer is responsible for the cost of return shipping.

The Following Can Not Be Returned Or Refunded:

  • Jacobs Ladder
  • Assembled or used products, unless the brand’s policy allows it — see our Return & Refund Policy
  • Any product with customization
  • Any product Built-to-Order

Email us any questions before or after your order at support@peakflowfitness.com or 646-921-5221 for more information.

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

Shipping Information

Once you place an order with Peak Flow Fitness, you'll receive a confirmation email from our team. Have questions? Text or call us at 646-921-5221 or email support@peakflowfitness.com.

Processing time: Most orders are processed within 1–3 business days.

Shipping method: Smaller items ship via UPS, FedEx, or USPS. Large equipment — including saunas, cold plunges, massage chairs, and gym machines — ships via LTL freight with curbside delivery. Our freight carrier will contact you to schedule your delivery appointment.

Transit time: Standard shipping typically takes 5–15 business days after processing; freight shipments typically take 7–21 business days and are scheduled with you in advance.

Damage: Please inspect your delivery and report any shipping damage within 48 hours to support@peakflowfitness.com.

Where we ship: We currently ship within the continental United States. Only certain products can be shipped to Alaska and Hawaii. Customers in those states must email us at support@peakflowfitness.com for a shipping quote. Enjoy free shipping on orders over $999 (exclusions apply).

Full details: Shipping Policy.

If you buy from us and then find the same item for less at an authorized US online retailer, send us proof (a link, screenshot or quote) and we'll refund the difference on eligible offers.

Limitations:

• Items covered by a manufacturer's Minimum Advertised Price (MAP) policy are not eligible
• The item must be in stock at an authorized online retailer — no auction, discounter or marketplace sites, and no retail-only stores
• Rebates, bundle or buy-one-get-one offers and once-a-year promotions such as Black Friday/Cyber Monday are excluded
• The match covers item price and shipping and excludes sales tax

Full terms: Price Match Guarantee.

Return Policy

Items may be returned within 30 days of delivery if they are unused, in original condition and with all original packaging (including pallets). Please contact us before sending anything back.

Restocking fee: returns, cancellations and refused shipments that have already shipped are subject to a restocking fee of 15% minimum, depending on the product and brand. The fee is waived if the item arrived damaged or defective, the wrong item was shipped, or the error was ours. Return shipping is the customer's responsibility unless the error was ours.

Damaged or missing parts: report shipping damage within 48 hours of delivery, with photos, to support@peakflowfitness.com or 646-921-5221 and we'll make it right.

Cancellations: orders cancelled before they ship may have a 3% payment-processing fee deducted. Orders that have shipped are handled as returns.

Some brands have their own terms. See our full Return & Refund Policy before you buy.

Free Shipping

Free shipping on parcel orders over $999 to the lower 48 and no sales tax outside NY. Oversized and freight orders are rated at checkout; Alaska and Hawaii buyers email us for a shipping quote.

Give Us A Call

Call or Text 646-921-5221 to chat with a live sales expert!
Email: support@peakflowfitness.com

50+ Trusted Brands

Genuine equipment from 50+ brands, with manufacturer warranty support where applicable.

Financing Available

Pay over time with Shop Pay: 4 interest-free payments under $1,000, or monthly plans on larger orders. Rates shown at checkout.