Redwood Outdoors Horizon Outdoor Sauna x Alaskan Cold Plunge

Yes, the sauna heater requires a hardwired electrical connection, typically 220V/240V. We strongly recommend consulting with a licensed electrician to ensure your backyard setup meets the specific power requirements for the heater model included.

Yes, the Alaskan cold plunge is designed for outdoor environments. It features an insulated design and a temperature control system that maintains your desired setting, whether you are cooling down to 37°F or warming up to 104°F, regardless of the ambient temperature.

You will need a level, solid foundation—such as a concrete pad, deck, or paver patio—large enough to accommodate both the barrel sauna footprint and the cold plunge unit. Ensure you also leave at least 18-24 inches of clearance around the sauna for proper airflow and maintenance access.

While the kit is designed for DIY assembly with no cutting required, it is a two-person job. The barrel staves and glass panels are heavy and awkward to maneuver, so having a partner is essential for safety and structural alignment.

The heat-treated hemlock is naturally resistant to decay, but it should still be treated with a non-toxic wood preservative or exterior stain on the outside to maintain its appearance and longevity. The interior should remain untreated to ensure a safe, chemical-free sauna experience.

The glass wall is tempered and designed for sauna use, but glass naturally loses heat faster than wood. While it provides excellent views and natural light, you may notice a slightly longer heat-up time compared to a fully enclosed wooden sauna.