Kohler C1 Indoor Sauna | Graphite Gray | FERO Heater | Freestanding & Alcove | 2, 3 & 5 Person

The Sauna You'll Use Every Day. For the Rest of Your Life.

The Kohler C1 Indoor Sauna in Graphite Gray is not a novelty — it's a permanent wellness ritual. Its striking Graphite Gray exterior and premium Scandinavian spruce interior create a sauna that looks as refined as it performs. Powered by a FERO electric heater, 2.1-inch mineral wool insulation, and Aerotherm ventilation, the C1 delivers an authentic Finnish sauna experience engineered to perform flawlessly year after year.

At this price point, you're not just buying a sauna. You're buying a Kohler — a brand with over 150 years of engineering excellence, now applied to the most important room in your wellness routine.

Choose your capacity, flooring, and installation preference below. All configurations include sauna stones.

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Build Your Sauna

Capacity

• Up to 2 People — Intimate and efficient, ideal for couples or solo sessions — from $20,899
• Up to 3 People — Perfect for small families or hosting a guest — from $24,299
• Up to 5 People — Most Popular — The entertainer's choice and best value per person — from $28,599

Flooring

• No Floor — Install directly over your existing surface (hardwood, tile, concrete)
• Full Floor — Matching spruce floor panels for a seamless, finished look

Installation — We Strongly Recommend Professional Installation

• With Professional Installation — Recommended — Our white-glove setup team handles everything. Arrive home to a fully assembled, tested, and ready-to-use sauna. No tools, no guesswork, no stress. This is how a $20K+ sauna should be delivered.
• No Upgrade — Self-assembly with detailed included instructions. Best suited for experienced DIYers comfortable with large-format kit assembly.

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Why Most Buyers Choose the 5-Person + Full Floor + Professional Installation

The 5-person configuration gives you the most flexibility — solo sessions feel spacious, and you can host family or guests without compromise. The full floor creates a finished, spa-grade look from day one. And professional installation means your sauna is set up correctly the first time, with no risk of voiding your warranty or dealing with assembly issues on a unit this size. It's the configuration we'd choose.

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Why the Kohler C1 Stands Apart

• Graphite Gray Exterior + Scandinavian Spruce Interior — A bold, modern aesthetic with warm Nordic craftsmanship inside. Tongue-and-groove joinery throughout for a seamless, architecturally refined finish.
• FERO Electric Heater + Sauna Stones — Rapid, consistent heat with authentic Finnish character. Heater guard included for every session.
• 2.1-Inch Mineral Wool Insulation — Exceptional heat retention means faster warm-up, lower energy use, and consistent temperatures year-round.
• Aerotherm Ventilation System — Continuous oxygen exchange keeps air fresh and comfortable throughout every session — no stuffiness, no stale heat.
• External Digital Control Panel — Set temperature, session time, and lighting from outside the cabin. Locking cover protects against unauthorized use.
• Dual Thermostatic Safety Controls — Redundant temperature management for consistent, safe sessions every time.
• Obeche Wood Benches & Backrest — Smooth, splinter-free seating with ergonomic backrest support built for long sessions.
• Warm White Indirect LED Lighting (2700K) — Soft, spa-grade ambiance that sets the tone for every session.
• 0.3-Inch Tempered Glass Door & Windows — Panoramic views and a spa-like atmosphere without sacrificing heat retention.
• Cool-Touch Beech Wood Door Handles — Safe to touch at any interior temperature.
• Freestanding or Alcove Installation — Flexible placement for any room layout. No permanent structural changes required.

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Health & Wellness Benefits

• Deep Muscle Recovery — Penetrating heat soothes soreness, reduces inflammation, and accelerates post-workout repair.
• Detoxification — Intense sweating supports your body's natural cleansing processes.
• Cardiovascular Support — Heat dilates blood vessels and promotes healthy circulation.
• Stress Relief & Better Sleep — Regular sessions lower cortisol and prime your body for deeper, more restorative rest.
• Skin Health — Increased circulation and sweating leave your complexion clear and refreshed.

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Specs at a Glance

• Exterior: Graphite Gray
• Interior: Scandinavian spruce (tongue-and-groove construction)
• Heater: FERO electric heater with sauna stones & guard
• Insulation: 2.1-inch mineral wool with rubber seals
• Ventilation: Aerotherm system
• Glass: 0.3-inch tempered
• Controls: External digital panel with locking cover + dual thermostatic system
• Lighting: 2700K warm white LED (indirect backrest)
• Benches: Obeche wood with ergonomic backrest
• Installation: Freestanding or alcove
• Capacities: 2, 3, or 5 person

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Shipping & Delivery

• Free USA Shipping — Ships within 1–3 business days; delivered in 5–10 business days
• Freestanding or alcove installation

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Documentation

• 2-Person Spec Sheet
• 3-Person Spec Sheet
• 5-Person Spec Sheet
• 2-Person User Manual
• 3-Person User Manual
• 5-Person User Manual
• Installation Readiness Guide
• Kohler Warranty

Configure yours today and bring the spa home — permanently.