Holl’s Onyxia Barrel Outdoor Sauna with Rear Window | 6 Person
Trade pricing on request
Trade enquiries
We are proud to be the official UK & Ireland distribution partner for Poolstar brands, including Poolex pool equipment, Spawer spa heat pumps, Holl's saunas, NetSpa inflatable ice baths and Formidra solar showers.
To view the full range, please download the Poolstar 2026 Catalogue
Contact us
For advice on product selection, wholesale enquiries including opening an account, trade prices, stock availability and technical support.
01284 658770
Product overview
Crafted from durable ThermoWood® Finnish pine, the Holl’s Onyxia Barrel Outdoor Sauna brings refined traditional European luxury and modern design to your garden. Designed to seat up to six people on two facing benches for moments of shared relaxation, it combines rich aesthetics, a panoramic rear window, with integrated LED lighting to create an opulent wellness sanctuary.
Highlights
Spaciously designed to accommodate up to six adults in complete comfort, with two benches arranged face to face, six people can be seated or two can recline
Sustainably crafted from premium 40mm Finnish pine, treated through an eco-friendly thermal process to deliver exceptional dimensional stability, natural weather resistance, and long-lasting durability
Traditional barrel shape with heavy-duty 8mm tempered safety glass door and panoramic half-moon rear window, offering refined elegance, optimum thermal retention, and absolute privacy
Soft, warm LED ambient backlighting is discreetly installed behind the backrests to enhance relaxation and create a peaceful atmosphere
Integrated outdoor terrace provides a dedicated space to cool off and rest between heat sessions
Engineered to pair seamlessly with stoves from 6kW upwards, delivering swift warming and an intense, even heat
Four year wood warranty, two years on electronics
Details
Specifications
| Location | Outdoor |
|---|---|
| Capacity | 6 seated |
| Dimensions | 225 x 240 x 226 cm |
| Stove | 6-8kW Stove (recommended) |
| Structure and Wood | ThermoWood® (raw pine benches) |
Traditional wellness
The steam technology of a sauna is based on heating volcanic stones, onto which water is poured, creating a cloud of steam and a dry heat that envelops the body in an intense, gently humid heat (below 25%).
This sensory signature, rooted in the Finnish ritual, offers a gradual rise in temperature, enveloping comfort, and deep relaxation. It transforms every session into an authentic, purifying, and deeply restorative experience.
Moist heat envelops the body, soothing tension and releasing tightness, perspiration opens the pores, deeply purifies the skin, and reveals a brighter, more radiant complexion. Alternating heat and cold by stepping out of the sauna onto the outside terrace awakens the body’s vital energy and restores vitality.
Volcanic energy
Lava stones are the key heat-retaining element of a sauna heater. Their durable volcanic structure stores heat and releases it gradually and evenly when water is poured over them. Careful positioning, combined with natural porosity, promotes hot air circulation and optimises water vaporisation (löyly) during pouring.
High-quality stones ensure efficient steam production, stable heat distribution, and enhanced heater durability.