Chippy by trade. Sauna is good quality and doesn’t feel cheap. Bench is solid cedar. Haven’t cheaped out. Jointed together with countersunk screws. No clips which I was trying to avoid. Happy with it.
The Swell Black Eco 4 uses a premium Harvia The Wall 6kW traditional sauna heater and requires a dedicated 25A single-phase circuit installed by a licensed electrician. We intentionally oversize the heater for reliability, strong performance and fast heat-up times, while keeping the sauna below the larger three-phase requirements that are not universal for Australian homes.
No. The ECO 4 does not require three-phase power. It is designed so it can be installed in standard Australian homes with the correct dedicated single-phase circuit added by a licensed electrician.
The ECO 4 is a traditional Finnish-style sauna, not an infrared sauna. It uses a Harvia heater and sauna stones to create full-room heat and steam when water is poured over the stones.
The sauna simply needs a level, compacted surface. Concrete, pavers, decking or a prepared compacted area can all work well. We recommend avoiding direct placement on grass because grass can hold moisture under the base.
The ECO 4 body measures 163cm wide x 159cm deep, with a sloped roof height of 220cm at the front and 210cm at the rear. The roof is larger than the body, measuring 238cm wide x 230cm deep, with approximately 30cm of overhang from the sauna body.
Swell saunas are dispatched from our Melbourne warehouse in protective cartons. Once your order is on the way, you will receive tracking details so you can follow the delivery and plan around its arrival.
The ECO 4 is made for DIY setup, with pre cut components and clear, step by step instructions. Most customers can move the cartons into position and complete the assembly with two people over a few hours. If you would prefer a hands off setup, we have a team available Australia-wide to handle the assembly for an extra cost. Please reach out and we can help arrange it. A licensed electrician is still required to connect the heater.
The ECO 4 heats to 70°C in around 20 minutes and reaches 90–100°C+ with extended use depending on conditions. It uses a premium Harvia The Wall 6kW heater to deliver strong traditional heat for a 3–4 person outdoor sauna.
The Swell Black Eco 4 is designed for 3–4 people, making it suitable for couples, families and shared recovery sessions at home.
The Swell Black Eco 4 includes a 5-year warranty for long-term confidence. It is built with premium materials and designed for Australian outdoor conditions.
Because Swell saunas are in high demand, a 50% deposit lets you secure your place in the next available stock allocation without paying the full amount upfront. The remaining balance is completed before delivery.
The interior of the Eco 4 is finished with premium Canadian Western Red Cedar cladding, responsibly sourced and rich in natural character. The timber releases a warm, natural aroma and refined finish that makes the sauna feel as good as it looks.
Swell saunas use premium Harvia Wall heaters, a 6kW heater in the Eco 4 model. Heat is never a limitation, with consistent, even performance reaching up to 100°C to deliver a true traditional sauna experience session after session.
The Eco 4 is crafted with clear-grade cedarwood cladding, selected for its natural durability, stability, and timeless appearance. Inside, the sauna remains completely chemical free, allowing the timber to breathe and release its natural aroma as the space warms. Built for outdoor use, the Eco 4 is designed to handle year round conditions while maintaining its refined finish. Every element is considered, with Swell’s signature details throughout to deliver a calm, considered recovery experience.
Integrated Bluetooth speakers, dimmable LED backlit rests and intuitive controls work together to create a calm, comfortable environment at any time of day. Whether you prefer bright, open daytime sessions or a softer evening glow, the lighting adjusts to suit your mood. Optional WiFi control is available for effortless session management when you want it.
A brief consultation to help you choose the right ice bath and sauna setup.