2-person Indoor Sauna | Kohler C1 Indoor Sauna Kit, Graphite Grey
- $18,360.00
$21,600.00- $18,360.00
- Unit price
- per
Vendor: Kohler
2-person Indoor Sauna | Kohler C1 Indoor Sauna Kit, Graphite Grey
Vendor: Kohler
2-person Indoor Sauna | Kohler C1 Indoor Sauna Kit, Graphite Grey
Kohler C1 · Indoor Sauna · Graphite Grey · 2 Person
Contemporary styling meets authentic sauna performance. The Kohler C1 pairs a warm Scandinavian spruce interior with a sleek Graphite Grey exterior — a refined balance of tradition and modern design, built for two.
At a glance
2-Person Capacity
Graphite Grey Exterior
4.5kW FERO Electric Sauna Heater
External Digital Control Panel
Freestanding or Alcove Install
Graphite Grey Exterior Finish
The Graphite Grey exterior sets this C1 apart — a contemporary finish that pairs naturally with modern interiors while the warm spruce interior maintains the traditional sauna aesthetic inside. Style and substance, inside and out.
Crafted for Comfort
Built to Accommodate Two in Comfort
The C1 interior is designed for both relaxation and practicality. The obeche wood bench and matching backrest provide ergonomic support for two users, while 2700K warm white indirect lighting positioned behind the backrest creates a soft, calming atmosphere that enhances every session.
Tempered glass doors and windows enhance the sense of space, making the interior feel open and airy — while high-performance insulation ensures consistent heat retention throughout.
Obeche wood bench and ergonomic backrest
2700K warm white indirect lighting behind backrest
0.3" tempered glass door and windows
Beech wood handles — cool to the touch
2
Person
capacity
capacity
Traditional sauna heat with the precision of modern engineering. The FERO heater delivers steady, even warmth throughout the cabin, while dual thermostatic controls ensure every session is safe, stable, and repeatable.
Kohler FERO Electric Heater System
Traditional Heat, Simple Control
FERO Electric Heater
The freestanding Kohler FERO heater delivers classic, high-performance sauna heat. Complete with sauna stones and a protective heater guard, it's built for both performance and safety — providing steady, even warmth from the moment you begin.
Digital Control Panel
An externally mounted digital control panel lets you set temperature, session duration, and backrest lighting before you step inside. Dual thermostatic controls maintain safe, stable heat so every session delivers consistent, repeatable results.
Aerotherm Ventilation
The Aerotherm ventilation system ensures optimal airflow and oxygen circulation throughout every session — maintaining a balanced, breathable environment that stays comfortable from start to finish.
Built for Efficiency & Performance
Faster Heat-Up. More Controlled Experience.
2.1" mineral wool insulation throughout the walls delivers superior heat retention — the cabin reaches temperature faster and holds it longer, keeping energy consumption low and session quality high.
Rubber seals minimise heat loss through the door and frame, while the Aerotherm ventilation system keeps fresh air circulating without sacrificing temperature control. The result is a balanced environment that performs at its best, every time.
2.1"
Mineral wool
insulation
insulation
Construction & Materials
Spruce Interior, Graphite Exterior
Scandinavian spruce lines the interior walls for a warm, natural sauna feel, while the Graphite Grey exterior delivers a sleek, contemporary finish that integrates seamlessly into modern home spaces.
Tongue-and-Groove Finish
Tongue-and-groove construction throughout creates tight, seamless joints between every timber board — improving structural integrity, enhancing heat retention, and delivering a premium interior finish that's apparent from the moment you open the door.
Flexible Installation
Designed for both freestanding and alcove installation — the C1 adapts to your home rather than the other way around. Whether positioned as a standalone feature or built neatly into a recess, the result is always a clean, integrated finish.
Key Features
Scandinavian Spruce Interior
Natural spruce walls inside — warm, beautiful, and built to perform in high-heat environments.
Graphite Grey Exterior
Contemporary Graphite Grey finish for a sleek, modern look that complements any interior design.
FERO Heater with Sauna Stones
Freestanding electric heater with stones and protective guard for classic, even heat.
Obeche Bench & Backrest
Ergonomic obeche wood seating — smooth, warm, and comfortable for extended sessions for two.
2700K Warm White Lighting
Indirect warm white lighting behind the backrest creates a spa-quality, relaxing atmosphere.
Digital Control Panel
External panel controls temperature, session time, and backrest lighting from outside the cabin.
Dual Thermostatic Control
Two thermostatic controls for safe, stable heat — consistent results, every session.
Aerotherm Ventilation
Active airflow system maintains oxygen levels and a comfortable environment throughout.
Mineral Wool Insulation
2.1" mineral wool for superior heat retention and energy-efficient performance.
Rubber Door Seals
Rubber seals minimise heat loss through the door frame for a more efficient session.
Beech Wood Door Handles
Natural beech wood handles stay cool to the touch — safe and comfortable mid-session.
Tongue-and-Groove Construction
Precision joinery throughout — seamless, tight, and refined from every angle.
Specifications
Capacity
2persons
Spacious 2-person cabin
Insulation
2.1in
Mineral wool (5.4 cm)
Glass
0.3in
Tempered (0.8 cm)
Lighting
2700K
Warm white indirect
Heater
FEROelectric
With sauna stones
Exterior
GraphiteGrey
Contemporary finish
Ventilation
Aerotherm
Active airflow system
Installation
Free/Alcove
Flexible placement
Key Features
Premium Scandinavian spruce interior and Graphite Grey exterior walls
Freestanding 4.5kW FERO electric sauna heater for a traditional sauna experience
Warm white indirect lighting for a gentle and relaxing atmosphere
Dual thermostatic control for a safe, consistent, and repeatable sauna session
Digital display controls temperature, time, and backrest lighting
Aerotherm ventilation system ensures adequate supply of oxygen and air exchange
2.1" (5.4 cm) thick mineral wool insulation between walls for heat retention
0.3" (0.8 cm) tempered glass door and windows
Beech wood door handles remain cool to the touch
Tongue-and-groove walls and connections for a seamless appearance
What's included
Sauna Kit
Front Frame Panels
Side Wall Panels
Rear Wall Panels
Ceiling Elements
Bottom Frame
Backrest
Benches
Electric Sauna Heater
Heater Guard
Sauna Stones
Control Panel
Lighting
Installation Hardware
Installation & Operation Manual
Also included
Accessories
Wall-Mounted Thermometer
Beech 20-Minute Hourglass Sand Timer
Headrest
Stool
5-Year Limited Warranty
Consumer use — full structural coverage included.
| Dimensions & Capacity | |
|---|---|
| Overall Dimensions | 65.6"W x 47.8"D x 86.4"H (166.7 x 121.4 x 219.5 cm) |
| Capacity | Up to 2 people |
| Materials & Finish | |
| Construction | Scandinavian Spruce |
| Seating | Obeche Wood |
| Door | Tempered Glass |
| Windows | Tempered Glass |
| Door Handle | Beech Wood |
| Heater Safety Rail | Obeche Wood |
| Finish | Graphite Grey |
| Installation | |
| Installation Type | Freestanding or Alcove |
| Floor Type | Spruce or No Floor |
| Wall Clearance | 2" (5 cm) |
| Ceiling Clearance | 8' (2.4 m) |
| Electrical | |
| Heater Fuel | Electric |
| Voltage | 220–240V |
| Frequency | 50/60 Hz |
| Kilowatt Rating | 4.5 kW |
| Amperage | 30A |
| Outlet | NEMA 6-30P |
| Cord Length | 9' 10" (2.9 m) |
| Cord Location | Top Rear |
| Interior Dimensions | |
| Width | 59.1" (150.1 cm) |
| Depth | 39.4" (100.1 cm) |
| Height | 77.4" (196.6 cm) |
| Weight | |
| Weight (No Floor) | 694.6 lbs (315.05 kg) |
| Shipping Weight (No Floor) | 981.2 lbs (445.08 kg) |
| Weight (With Floor) | 713.1 lbs (323.5 kg) |
| Shipping Weight (With Floor) | 999.8 lbs (453.5 kg) |
Download Spec Sheets:
Order Confirmation
- Upon placing your order, you will receive a confirmation email. This means we have received your order in our system and pre-authorized your credit card for the purchase.
- Orders are processed between Monday – Friday.
- As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.
- If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via email or phone with the choice of waiting or cancelling for a 100% refund.
- If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.
- Signature is required for delivery of items for loss-prevention purposes.
Shipping Times
- We promise to do our best to get your order to you as soon as possible. We provide estimated shipping times on each product page.
- Once an order is dispatched, delivery is approximately 5 – 7 days.
- Order delays have proven to be unavoidable and outside of Biohacker Direct's control. While this might be frustrating, we ask you to please be patient and understanding with us in these tough times. We thank you for your business and appreciate your patience.
Delivery
- This exceptional Sauna Sanctuary requires delivery by a special appointment, and on a wooden pallet.
- The driver is responsible for "curbside delivery only" and will lower the items to ground level.
- Prior to shipping this product, we often contact customers to share shipment details and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses.
- Our goal is to ensure your project's success.
Customers are responsible for all shipping costs associated with returns or exchanges.
Please note that not all products are eligible for return once they have shipped. As we source many of our products directly from the manufacturer, returns are subject to each manufacturer’s return policy. If a manufacturer does not allow a product to be returned, we are unfortunately unable to accept a return for that item. Because policies vary by brand and product, we recommend contacting us in advance if you would like confirmation on the return eligibility of a specific item.
Due to significantly increasing LTL and freight shipping costs, all standard returns are subject to a 25% cancellation/restocking fee, in addition to return shipping costs. If you are exchanging your product for another item, we may be able to assist with some of the associated costs depending on the product.
The seller reserves the right to withhold any refund until the returned goods have been received, inspected, and confirmed to be free from damage. Refunds will be processed within 5 business days after the product has been returned to the warehouse and successfully inspected.
Kohler Co. warrants the KOHLER Brand saunas (“Product”) to be free of defects in material and workmanship during normal residential usage for five (5) years from the date of purchase or the date of delivery (if later than the date of purchase) as long as the original purchaser owns the Product. The warranty applies to Product purchased and installed in
the United States and Canada.
Warranty is void if the Product is installed in a commercial application.
Kohler Co. warrants all KOHLER Brand sauna accessories included with the sauna or purchased separately to be free of defects in material and workmanship during normal residential use for one (1) year from the date of purchase or the date of delivery (if later than the date of purchase) as long as the original purchaser owns the Product, with all other terms of
this warranty applying except duration.
Kohler Co. will, at its election, repair or replace defective Product that is covered by this warranty where Kohler Co. inspection discloses any such defects occurring in normal usage. Damage caused by accident, misuse, or abuse is not covered by this warranty.
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