Outdoor Cedar Hot Tub With External Firewood Heater, Pump, Filtration System and Cover
Relax and unwind naturally with Shym Saunas' Outdoor Cedar Hot Tub. A complete DIY package featuring a premium Western Red Cedar tub, external wood-fired heater, water pump, filtration system, and insulated thermal cover.
Combining traditional craftsmanship with modern performance, this kit provides a warm, authentic soaking experience — the perfect retreat for your backyard or holiday home.
Key Features & Benefits
Wood-Fired Heating
- Efficient 304# stainless steel external heater warms water to around 38°C within hours using renewable firewood.
- Crafted from durable Canadian Western Red Cedar, naturally resistant to pests, moisture, and decay.
- Integrated pump and filtration system maintains clean, clear water and improves heating efficiency.
- All straps and fittings are corrosion-resistant stainless steel for maximum strength and longevity.
Thermal Protection
- Polystyrene foam cover retains heat and protects your tub; marine-grade vinyl exterior resists UV and moisture.
- Available in multiple sizes to comfortably fit 2–10 people depending on the model.
- Provides exceptional heat retention and a beautiful rustic aroma.
- Easy DIY assembly — preassembled parts set up in just a few hours.
A Closer Look
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Detail view 1

Detail view 2
What's Included
- Wooden floor base plate
- Wooden cedar staves (39 mm thick)
- External stainless steel wood-fired heater with flue kit
- Water pump and filtration system
- Plumbing accessories (pipes, valves, connections)
- High-density polystyrene thermal insulation cover
- Wooden stairs and benchtops
- Assembly manuals and online installation video
Technical Specifications
| Technical Details |
| Material |
Western Red Cedar & Stainless Steel |
| Heater Type |
304# Stainless steel wood-fired heater |
| Available Sizes |
1500mm×900mm / 1800mm×900mm / 2100mm×1200mm (Diameter × Height) |
| Capacity |
2–10 people (depending on size) |
| Weight |
~300 kg |
| Assembly |
Easy DIY setup (approx. a few hours) |
This product is intended for wellness, lifestyle, and educational use only. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease. Please consult a qualified healthcare professional before use if you have any medical conditions.
Professional Installation & Sauna Setup
We work closely with a trusted company that specializes in setting up saunas and similar wellness equipment. At an additional cost, they can professionally handle the installation of your new product, ensuring it's ready to use safely and efficiently.
If you would like to arrange installation, please send an email to sales@corerecovery.com.au and let us know which product you are interested in that requires setup. Our team will provide you with pricing and schedule details.
Special Offer: For orders of multiple products totaling over $30,000, installation is free of charge.
Ensure your wellness equipment is set up correctly and safely. Contact us today to take advantage of our professional installation services!
For products from PlusLife
Each PlusLife sauna is handcrafted and fully assembled at our facility for inspection before shipping. This ensures every component meets our strict quality standards.
- Delivery times vary depending on stock availability. If the model is in stock, dispatch can happen immediately after order confirmation. Production timeframes range between 6 to 12 weeks, depending on the specific model and current manufacturing queue.
- Delivery: Australia-wide curbside delivery as standard, with optional white-glove service
- Access: For difficult access properties, please be available on the day to assist our drivers
- Packaging: Delivered flat-packed for easy movement and assembly
- Pickup: Free collection available from our Sydney warehouse