KOHLER C1 Indoor Sauna Kit | Graphite Grey | Up to 5 Persons

The KOHLER C1 Indoor Sauna is a premium indoor sauna designed for both freestanding and alcove installation, offering flexibility for residential wellness spaces.

Constructed from Scandinavian spruce, the C1 features a Graphite Grey exterior and a refined natural wood interior. Tempered glass doors and windows, combined with mineral wool insulation and rubber seals, help maintain consistent heat retention throughout each session.

An obeche wood bench and matching backrest, paired with 2700K warm white indirect lighting, create a calm, comfortable environment suitable for daily sauna use.

Heating & Controls

The C1 Indoor Sauna includes a freestanding FERO electric sauna heater, along with sauna stones and a heater guard. An externally mounted digital control panel allows easy adjustment of temperature, session duration, and backrest lighting.

Designed for flexibility, the C1 supports both freestanding and alcove installation methods, making it adaptable to a variety of interior layouts.

Features

• Scandinavian spruce interior and exterior wall panels
• Graphite Grey exterior finish
• Freestanding FERO electric sauna heater with sauna stones
• Warm white indirect backrest lighting (2700K)
• Dual thermostatic control for consistent operation
• External digital control panel for temperature, time, and lighting
• Aerotherm ventilation system for fresh air circulation
• 2.1 in (5.4 cm) mineral wool insulation between walls
• 0.3 in (0.8 cm) tempered glass door and windows
• Beech wood door handles designed to remain cool
• Tongue-and-groove wall construction for a seamless appearance

Cabin Sizes

The KOHLER C1 Indoor Sauna is available in multiple sizes:

Compact

66 in W × 48 in D × 87 in H
Actual: 65.8 in W × 47.5 in D × 86.4 in H
(Up to 2 people)

Medium

78 in W × 56 in D × 87 in H
Actual: 77.6 in W × 55.4 in D × 86.3 in H
(Up to 3 people)

Large

82 in W × 79 in D × 87 in H
Actual: 81.6 in W × 79 in D × 86.4 in H
(Up to 5 people)

What’s Included

• Front frame panels
• Side wall panels
• Rear wall panels
• Ceiling elements
• Bottom frame
• Benches and backrest
• Electric sauna heater
• Heater guard
• Sauna stones
• External control panel
• Interior lighting
• Installation hardware
• Installation and operation manual
• 5-year limited warranty (consumer use)

Optional Accessories

• Wall-mounted thermometer
• Beech 20-minute hourglass sand timer
• Headrest
• Stool

Technical Specifications (All Sizes)

• Construction Material: Scandinavian Spruce
• Seating Material: Obeche Wood
• Door & Window Material: Tempered Glass
• Door Handle Material: Beech Wood
• Heater Safety Rail: Obeche Wood
• Floor Type: Spruce or no floor
• Installation Method: Freestanding or alcove
• Wall Clearance Requirement: 2 in (5 cm)
• Ceiling Clearance Requirement: 8 ft (2.4 m)
• Electrical Cord Length: 9 ft 10 in (2.9 m)
• Cord Location: Top rear
• Heater Fuel: Electric
• Voltage: 220–240 V
• Frequency: 50/60 Hz

Electrical Specifications by Size

2–3 Person Models

• Heater Output: 4.5 kW
• Amperage: 30 A
• Outlet: NEMA 6-30P

5 Person Model

• Heater Output: 9 kW
• Amperage: 50 A
• Outlet: NEMA 6-50P

Shipping

• Free shipping included
• Delivered by special appointment on a wooden pallet
• Curbside delivery only (items lowered to ground level)

Customers may be contacted prior to shipment to confirm delivery details and discuss any site-specific considerations.

Note: White-glove installation services are available, starting at $4,200.

Why the KOHLER C1 Indoor Sauna

• Flexible indoor installation options
• Premium Scandinavian materials
• Traditional electric sauna heating
• Thoughtful lighting and ventilation design
• Built for long-term residential use