Sereno Cedar Outdoor Sauna – 9kW Harvia Heater
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- Delivery time 6-8 weeks
Transform your home into a wellness retreat with the Sereno Cedar Outdoor Sauna. Built with premium Thermowood cedar, framed in 304 stainless steel, and fitted with the powerful Harvia Cilindro 9kW heater, this sauna delivers the ultimate Finnish heat therapy experience. Whether placed on the deck, by the pool, or as the perfect partner to your ice bath, it’s designed to elevate recovery, relaxation, and connection.
Why Choose a Sereno Cedar Finnish Sauna?
Sereno saunas are crafted with durability, design, and NZ conditions in mind. Every detail — from heat-retaining amber glass to removable benches — is engineered for comfort and built to last.
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Premium Thermowood cedar – superior insulation, resists heat & moisture
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304 stainless steel frame – strong, modern, and corrosion-resistant
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Heat-retaining amber glass – natural light, no heat loss
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Harvia Cilindro 9kW heater – authentic Finnish performance, even heat
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Seats 2–5 people – compact footprint, spacious interior
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Indoor or outdoor use – designed for versatility
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Tool-free assembly in under 2 hours – no professionals required
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Removable floating benches – maximise space, accessible for all
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Amber LED lighting – calming glow for deep relaxation
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2-year warranty – peace of mind guaranteed
Wellness Benefits
Bring the proven benefits of Finnish sauna culture into your lifestyle:
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Faster recovery – soothe sore muscles, ease joint pain, reduce lactic acid
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Clearer skin – deep sweating flushes toxins and refreshes skin
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Better breathing – relieve congestion and improve lung function
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Mental reset – reduce stress, improve sleep, and restore clarity
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Heart & brain health – improved circulation, lower blood pressure
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Stronger connections – share quality time in a calm, social space
HOW LONG DOES IT TAKE FOR THE ICESAUNA TO REACH THE DESIRED TEMPERATURE?
The Sereno Cedar Sauna typically heats up within 60 to 75 minutes, depending on ambient conditions and the set temperature. We recommend preheating with the door closed and ensuring proper ventilation to maintain even heat distribution throughout your session for the fastest heat-up time.
IS THE SERENO CEDAR SAUNA SUITABLE FOR BOTH INDOOR AND OUTDOOR INSTALLATIONS?
Yes! The Sereno Cedar Sauna is designed for both indoor and outdoor use, making it a versatile addition to any home, gym, or wellness space. Its premium thermowood and stainless steel frame ensure durability against varying weather conditions, while its sleek design blends seamlessly into any environment.
HOW HOT CAN THE SERENO CEDAR SAUNA GET?
The sauna operates between 70ºC and 90ºC, allowing you to choose your ideal heat level. This temperature range ensures an authentic Finnish sauna experience, providing deep, penetrating warmth that promotes muscle recovery, circulation, and relaxation. The Harvia Cilindro PC90 heater ensures even heat distribution, creating a consistent and comfortable sauna session every time.
WHAT ELECTRICAL CONNECTION DO I NEED FOR THE ICESAUNA?
The Sereno Cedar Sauna requires 240v.

About Sereno
Sereno is a lifestyle brand by Turfrey, a family business trusted across New Zealand for more than 50 years. Built on a reputation for quality and reliability, Sereno brings together style, durability, and wellness through products like Louvre Roofs, Saunas, and Ice Baths. Designed for New Zealand’s conditions, every Sereno product is backed by the strength and experience of a company that has been helping Kiwis create better spaces for half a century.
With Sereno, you’re not just buying a product - you’re investing in comfort, performance, and the trusted Turfrey name.
View all ProductsSauna
Exterior dimensions: 184.8 × 171.8 × 226.9 cm
Interior dimensions: 174.2 × 157.6 × 184.6 cm
Capacity: 2–5 people
Interior volume: 5 m³
Weight: 530 kg
Material: Thermowood & 304 stainless steel
Placement: Indoor / Outdoor
Temperature: 70–90°C
Heating time: ~1 hour
Lighting: Amber LED (2 side strips)
Voltage: 400V 1/3N~ (heater), 220V (lighting)
Includes: Bucket, ladle, sandtimer, hygrothermograph
Harvia Cilindro PC90 Heater
Dimensions: 32 × 32 × 93 cm
Weight: 10 kg (80 kg of stones)
Material: Stainless steel
Controls: Manual switches
Power: 9kW
Voltage:240v