Holl’s Onyxia Cube 4 Person Outdoor Sauna – Glazed Front

Holl’s & France Sauna Buying Guide

Ensuring a Smooth, Safe, and Professional Sauna Delivery Experience. This guide outlines the complete process from placing your order to installation, safety checks, and aftercare. Following these steps will help ensure a seamless delivery and setup of your Holl’s Sauna or France Sauna, whether you are installing it at home or in a professional wellness environment.

1. Place Your Order

• Choose your preferred Holl’s Sauna or France Sauna model — whether infrared, traditional indoor, hybrid, or outdoor. Complete your purchase on our website by providing your delivery address.
• The price listed includes delivery within mainland UK (exclusions include the Channel Islands, areas of Scotland, and Ireland).
• You will receive an order confirmation email immediately with your order details, estimated delivery timeframe, and next steps.
• To ensure smooth access on the day of delivery, we may request photos or a short video of the delivery area, access routes, or surrounding space. 
• This helps our logistics team confirm the feasibility of delivery and kerbside unloading requirements.
• All saunas are held in our UK warehouse and prepared for dispatch once your order is confirmed. Kerbside delivery and unloading are included at no additional cost.

2. Order Processing & Preparation

• Once your order is confirmed, your sauna is scheduled for preparation and dispatch.
• Our saunas are crafted from premium-grade wood, selected for durability, insulation, and aesthetic quality.
• All components — including the cabin structure, benches, glazing, and heating elements — are prepared, quality checked, and securely packaged for shipment.

3. Delivery Organisation

When your sauna is ready, we organise pallet delivery of the flat-pack components to your address (kerbside).

You will be notified of:

• Delivery date

• Estimated time window

• Any access requirements (e.g., suitable driveway space for pallet trucks)

• Your sauna is dispatched directly from our UK warehouse, and unloading is included at no additional charge.

4. Pre-Installation Preparation

Before delivery, please ensure:

• A suitable foundation
• The base must be level, stable, and capable of supporting the sauna’s full weight, including that of its occupants.
• Clear access
• Access routes should be unobstructed to facilitate the movement of pallets and components.
• Electrical Preparation (Customer’s Responsibility)
• All electrical work is entirely the customer’s responsibility.

Requirements vary depending on the model and the layout of your property.

You must:

• Arrange for a qualified electrician prior to installation.
• Check the electrical specifications listed on the product page.
• Ensure correct cable sizing, breaker and isolator selection, and compliance with UK electrical regulations (e.g., BS 7671).
• Provide your electrician with the manufacturer’s electrical manual in advance.
• Where possible, have the electrician present on installation day.
• Important: Failure to use a qualified electrician or failure to meet the required electrical standards may void the warranty.
• Each product page includes an Electrical Supply section for further clarification.

If self-assembling:

• Review the assembly manual provided with your order.
• Prepare the necessary tools and sufficient manpower in advance.

5. Delivery & Unloading

On the scheduled delivery day:

• Your sauna arrives on a pallet
• Our delivery team unloads the pallet (via pump truck/trolley where possible)
• Components are placed at your designated kerbside or base area

Once delivered, please:

• Unpack all components
• Check for missing or damaged parts
• Report any issues within 24 hours to maintain warranty eligibility

6. Installation / Assembly

Professional Installation (Optional)

• If you choose professional installation, our experienced carpenters will assemble your sauna within one full day.

What Our Team Does:

• Full assembly of the sauna build only
• Correct fitting of all internal components (no electrical hookup)
• Final checks to ensure the sauna is ready for commissioning
• Installation quotes can be requested directly from the product page. Pricing varies by model; we do not charge for travel.

Self-Assembly (Flat-Pack)

If you prefer to self-assemble:

• Follow the detailed instruction manual
• Assembly usually takes 1–2 days, depending on experience
• Electrical Connection (Customer’s Responsibility)
• All wiring, final electrical connection, and compliance with UK standards must be carried out by a qualified electrician appointed by the customer.

This includes:

• Correct cable sizing
• Safe heater connection
• Isolation switch requirements
• Certification of the installation
• Incorrect or uncertified electrical work will void the warranty.

7. Finishing Touches & Safety Check

Once assembled:

• Apply a breathable oil-based finish to interior and exterior wood surfaces (required for warranty validity)
• Confirm the structure is level and stable
• Check all doors, glazing, and ventilation
• After wiring is complete, perform a first heat-up test
• Obtain any required electrical certification from your electrician

8. Enjoy Your Sauna & Ongoing Support

Your sauna is now ready to use.

Please remember:

• Self-assembled saunas carry a 1-year manufacturer's parts warranty
• A qualified electrician must complete any electrical work
• Missing or damaged components must be reported within 24 hours
• Our support team is always available for assistance or replacement parts

Returns & Refunds Policy (Key Information)

Eligibility

• Returns apply only to unused products in original condition.
• Custom or modified items may not be eligible

Reporting Issues

• Missing or damaged components must be reported within 24 hours of delivery
• Damage in transit claims require timely reporting

Procedure

Contact customer support with photographs or video evidence:

• A member of our team will assess the issue
• We will arrange replacements, repairs, or next steps

Refund Conditions

• Refunds or replacements are available only for products that are defective, damaged in transit, or not as described.

Final Note on Electrical Responsibility

• All electrical work — including preparation, wiring, power supply installation, certification, and compliance — is 100% the customer’s responsibility and must be completed by a qualified electrician.
• This requirement is essential for safety, performance, and warranty validity.

Specifications

Technical Specification: Electrical Supply

CRITICAL: NOTICE TO THE PROPERTY OWNER

Owner’s Brief for the Onyxia Cube (Glazed Front)

This installation requires a dedicated high-amperage circuit. Under UK Building Regulations (Part P), all outdoor electrical work must be performed by a Registered Electrician.

THE GOLDEN RULE: While this document provides manufacturer guidelines, you must always defer to the professional judgment of your Registered Electrician. They will determine the safe cable route and the capacity of your consumer unit. If their on-site assessment contradicts this brief, follow the electrician’s instructions.

1. Power Infrastructure Requirements

The circuit must be sized based on your selected stove wattage. For the Glazed Front model, we have adjusted the recommendations to ensure performance.

• Integrated Lighting: The White LED strips (mounted behind the backrests) are low voltage. Your electrician will connect the internal transformer hub to the main incoming 230V feed.
• Armoured Cable (SWA): Steel Wire Armoured cable is mandatory. Due to the potential for heat loss through the glass front, ensuring full voltage (minimising voltage drop) via a thicker cable is highly beneficial.
• Isolation Switch: A weatherproof, lockable Double-Pole Isolation Switch must be mounted near the sauna.

2. Safety & Moisture Management

• RCD Protection: The circuit must be protected by a 30mA RCD at the consumer unit.
• Glass Proximity: The electrician must ensure that the internal cabling for the LED strips and the stove is routed away from the glass gaskets to prevent heat-related degradation of the seals.
• IP Rating: All external glands and junction boxes must be IP65 rated.

3. Aesthetic Wiring (The "Invisible" Look)

• The Glazed Front Challenge: With a full glass front, there are fewer wooden "chases" to hide wires. Your electrician should route the main feed through the ThermoWood® floor frame or the rear corner pillars to maintain the clean, panoramic aesthetic.
• LED Placement: Ensure the white LED wiring is tucked into the pre-machined grooves behind the Abachi/Pine backrests before the final glass panels are seated.

4. Commissioning

• Stove Mounting: The stove should be mounted on the wooden side/rear walls, respecting all safety clearances from the 8mm smoked glass panels.
• Certification: Your electrician must issue an Electrical Installation Certificate (EIC). This validates your 2-year electronics warranty and ensures your home insurance covers the outdoor structure.

Owner’s Electrical Action Plan

1. Selection: Confirm if you are opting for the 6kW or 8kW stove (Recommended for Glazed Front).
2. Survey: Have your electrician confirm the main house fuse (60A/100A) can handle the 30A-40A spike.
3. Pre-Wire: The SWA cable must be in place before the floor mat and base frame are finalised.
4. Final Test: Electrician verifies the RCD trip times and earthing continuity before the first "Glass Expansion" heat cycle.

Delivery & Installation Protocol: Onyxia Cube (Glazed Front)

HL-SSBLK160-GF | Modern Panoramic Installation

The Glazed Front model creates a seamless transition between the sauna and your garden. Because the front wall is primarily glass rather than interlocking wood, the structural "squaring" of the side and rear walls is the most critical phase of the build.

1. Receipt & "Glass-First" Inspection (Mandatory)

• The 24-Hour Rule: You must unbox and inspect the 8mm smoked black tempered glass front panels and the door within 24 hours.
• Critical Check: Large glass panels are more susceptible to "flexing" during transit. Check all edges for micro-chips; a chip in a panel this size can lead to a shattered pane during the first high-heat cycle.
• Storage: Keep the glass panels vertical and supported on their original protective edges until the moment of installation. Do not lean them against uneven surfaces.

2. Site Preparation: The Zero-Tolerance Base

A standard cabin can hide a slight lean; a Glazed Front Cube cannot.

• The Foundation: A reinforced concrete pad or a steel-frame deck is highly recommended. The base must be 100% level. If the front of the base is lower than the back, the heavy glass door will "creep" open or bind against the frame.
• Floor Protection Mat: Install the included mat first. It acts as the template for your build and prevents moisture from rising into the raw pine bench supports.
• Wind Orientation: On a glazed front model, try to position the glass face away from the prevailing wind to minimise heat loss and prevent excessive debris buildup on the panoramic view.

3. Choosing Your Installation Pathway

Pathway A: Professional Installation (Highly Recommended)

• The Service: Specialists will focus on the tension between the 40mm ThermoWood® side walls and the glass front. They will ensure the gaskets are seated perfectly to prevent steam escaping from the glass-to-wood joints.
• Technical Setup: Includes the integration of the white LED backrest strips.

Pathway B: Self-Assembly (Minimum 3-4 Person Task)

• The Manpower: You will need at least 3 adults, ideally 4, when it comes to lifting and securing the glazed front panels. These are significantly heavier and more awkward than the wooden wall planks.
• Sequence: Build the rear and side ThermoWood® walls first to create a stable "U-shape" before attempting to slot the front glass panels into the tracks.
• Tools: Suction glass lifters (highly recommended), high-quality spirit level, rubber mallet, and hex key set.

4. Commissioning & Maintenance

• First Heat: The glass will expand. During the first session, you may hear minor "creaks" as the wood and glass gaskets settle. This is normal for a 40mm ThermoWood® structure.
• Glass Maintenance: Use only non-ammonia glass cleaners. Smoked black glass shows fingerprints and water spots easily; a quick squeegee after each session will keep the "Glazed Front" aesthetic pristine.
• Stove Selection: Because of the increased glass surface (which has a lower R-value than 40mm wood), we recommend a 6kW or 8kW stove for this specific model to ensure rapid heat-up in cold weather.

Installation Readiness Checklist

•  Inspection: Large glazed front panels and door checked within 24 hours?
• Base: Is the foundation reinforced and verified 100% level?
•  Equipment: Do you have suction glass lifters for safe handling?
•  Stove: Have you selected a 6kW+ stove to account for the glass frontage?
•  Manpower: At least 3 adults ready for the "Glass Day"?

Holl’s Onyxia Cube (Glazed Front): Warranty Statement

HL-SSBLK160-GF | Panoramic Modern Protection Terms

The Onyxia Cube with Glazed Front is a premium architectural wellness solution. To protect your 4-year structural and 2-year electronic coverage, the following professional standards for glass-to-wood integration must be strictly observed.

1. Warranty Duration

Holl’s (Poolstar) provides a tiered warranty reflecting the durability of European-manufactured ThermoWood®:

• Wood Structure: 4-Year Warranty against manufacturing defects, structural failure, or rot in the 40mm ThermoWood® planks and floor frame.
• Electronics: 2-Year Warranty covering the integrated white LED backrest strips, control hub, and internal wiring.
• Stove: If a stove (4.5kW to 8kW+) is purchased separately, it is governed by its own manufacturer’s warranty terms.
• Usage: These terms apply strictly to private domestic home installations.

2. Conditions for Validity

To maintain your coverage, the following environmental and technical standards are mandatory:

• Certified Professional Hardwiring: The unit must be hardwired by a Registered Electrician to a dedicated circuit. Due to the glass frontage, using a 6kW+ stove is recommended; damage caused by undersized cabling or incorrect circuit protection will void the 2-year electronics warranty.
• Zero-Tolerance Foundation: Because this model features a full glass front, the base must be 100% level and reinforced. Structural "racking" or "twisting" caused by an unlevel base, which leads to glass panel stress, door misalignment, or seal failure, is not covered.
• Floor Protection Mat: The included floor protection mat must be installed. Failure to use the mat, leading to moisture wicking into the raw pine internal supports, will void the internal wood warranty.

3. The 24-Hour Inspection Rule (Panoramic Glass)

• Smoked Black Glazing: This model contains significantly more glass than the classic version. You must unbox and inspect the Glazed Front Panels and the 8mm Door and report any transit damage, edge chips, or cracks within 24 hours of delivery.
• Post-Assembly: Once the glass is seated in the ThermoWood® tracks and the first heat cycle is completed, glass breakage is considered accidental damage and is not covered.

4. Material Integrity & Care

• ThermoWood® Finish: The exterior waterproof black paint is a protective barrier. To maintain the 4-year warranty, avoid abrasive cleaning. Use only soft cloths and fresh water. Never use high-pressure washers, which can damage the glass gaskets and strip the black finish.
• Glass Seals: Do not use silicone or aftermarket sealants on the glass-to-wood joints unless specified by the manufacturer, as these can interfere with the natural thermal expansion of the 40mm Finnish pine.
• Hygiene: To prevent salt and perspiration staining on the raw pine interior benches, the use of towels is mandatory.

5. Claims Procedure

In the event of a technical or structural issue:

1. Documentation: Provide your original purchase record and the GTIN (HL-SSBLK160).
2. Electrical Evidence: For any electronic claims, you must provide the Electrical Installation Certificate (EIC) showing a dedicated circuit.
3. Photos: Evidence of the level foundation and the correctly seated glass gaskets may be requested.

Warranty Validity Checklist

•  Inspection: Reported any transit or glass damage within 24 hours?
• Base: Is the Cube sitting on a reinforced, 100% level foundation with the mat?
•  Electrical: Is the unit hardwired and certified by a Registered Electrician?
• Maintenance: Are you cleaning the smoked glass with non-ammonia products?

Returns and Refund Policy

At any time after submitting your order online or by telephone and up to 14 days following the date you receive the items from us (“Cooling Off Period”) you decide you no longer want an item, we will be happy to exchange the item or give you a full refund provided that you notify our After Sales team at any time before the Cooling Off Period ends by post or email that you wish to cancel the item and, where the item has already been delivered, it must be returned to us ‘as new’ – unused and complete in the original packaging.

If at the time of cancellation the item has already been dispatched or delivered to you, you must return the cancelled item to us (at your own cost) in accordance with our returns policy. Please package the item securely and return it to us together with the original delivery note.

If the goods are faulty, please see the defective or damaged goods below. Please contact our After Sales team for more information.

The Consumer Contracts Regulations require refunds to be made within 14 days of the date the customer sends notice of cancellation.

If you are purchasing an item from Balance Recovery by distance means (whether online or via telephone) as a business and not as a consumer, items may only be returned for a refund at Balance Recovery’s discretion; non-stock items are subject to a restocking charge of 25% of the relevant order value. Custom-manufactured items may not be refundable.

If you wish to cancel an item you have ordered, please notify our After-Sales team by email. As we process orders immediately, it may not always be possible to prevent an item from being dispatched.

We will refund the reasonable costs you incur in returning the following items to us:

• Items we delivered to you in error
• Items which are faulty or damaged upon delivery
• Items which are substitutes for items originally ordered

We ask that you send us copies of receipts for such costs.

In all other circumstances (including where you cancel an item during the Cooling-Off Period), you will be responsible for the cost of returning the item to us.

Suppose we do not receive the original item back from you, together with the original delivery note. In that case, we may arrange for the collection of the item from the delivery address and may recover from you the charges (not exceeding direct costs) we incur in doing so. Until you return items to us, you are responsible for their safekeeping and taking reasonable care of them. We do not accept liability for packages damaged during transit back to us. It is your responsibility to wrap items adequately to prevent damage.

Faulty or Damaged Items

• If the item/s you ordered are damaged or have parts missing upon receipt, provided you inform our After Sales team within 48 hours of receiving the items (supplying them with the reference details shown on the delivery documentation together with details of the damage or missing items and pictures of any damage), we will offer a replacement or a refund.
• If the item(s) you ordered are faulty upon receipt or fail within the first 30 days, we will collect the defective item(s) and offer a replacement or a refund.
• We will typically collect damaged or faulty items within the first 30 days after receipt of the goods. Please contact our After Sales team before returning damaged or defective goods. Refunds will be credited only to the payment method used for the original purchase.

Specifications

Manual

Panoramic Glass Installation 

Holl’s Catalogue 2026