Beacon 250 S Cube Sauna

Extra length that still fits neatly

Price

£4,595 inc VAT & Delivery Included

Free UK Mainland Delivery

Every Order Plants 5 Trees

Flat‑Pack or Installation

Handcrafted in Estonia

Choose from Clear, Bronze or Mirror Glass

Comprehensive Warranty

Electric or Wood Fired Heating Options

Call 03330 907890 for expert advice from our team

Choose your sauna timber

Choose your installation

Choose your timber colour

Natural Spruce

Choose your roof shingles

Terracotta

Umber

Forest

Graphite

Onyx

Choose your sauna heater

Choose your back window

Choose your front window

Choose your add-ons

About

The longest standard Beacon, same familiar diameter. Beacon 250s extends to 250cm while keeping the consistent 205cm diameter found throughout the smaller models. Solid Spruce construction holds heat efficiently even with a full group and frequent door use. Built for anyone who wants maximum length within the standard Beacon specification, not a different diameter entirely.

Natural Nordic Spruce

Natural Nordic Spruce

Built for UK Weather

Built for UK Weather

Everything You Need to Install

Everything You Need to Install

Designed for Fast Heat-Up

Designed for Fast Heat-Up

Specification

  • Shape: Cube
  • Accommodates: 4-5 People
  • Length: 250 cm
  • Diameter: 205 cm
  • Wall Thickness: Front 28mm / Sides 42mm
  • Material: Spruce
  • Main Door: 59 x 169 cm
  • Window: Optional
  • Package Size: 250 x 120 x 100 cm
  • Assembly: Self-assembly
  • Insulated: No
  • Power Supply: Single or Three Phase
  • Heater Compatibility: Electric & Wood-Fired

Designed around your ritual

Full Glass Back Window

Full Glass Back Window

Bring the outdoors in. A full glass rear window fills the sauna with natural light and opens up wider scenic views.
Half Moon Back Window

Half Moon Back Window

Privacy meets natural light. A half-moon rear window creates a softer, brighter feel while keeping more enclosed wall space.
Full Glass Front Barrel

Full Glass Front Barrel

Turn every session outward. Full front glazing opens the barrel sauna to natural light and uninterrupted outdoor views.
Full Glass Front Cube

Full Glass Front Cube

Modern design, open views. Full-height front glazing creates a brighter, cleaner space with a sharper architectural finish.
LED Lighting Kits

LED Lighting Kits

Set the perfect mood. Integrated LED lighting creates warmth and atmosphere, transforming the sauna experience day or night
Bluetooth Speakers

Bluetooth Speakers

Soundtrack your downtime. Built-in Bluetooth speakers bring music, podcasts, and guided sessions straight into your sauna.
Quality Accessories

Quality Accessories

Complete the experience properly. Practical finishing touches that improve comfort, convenience, and the overall sauna ritual.
Premium Thermowood

Premium Thermowood

Built to age beautifully. Thermowood offers a richer finish, stronger durability, and better long-term performance.

Frequently Asked Questions

2-Year Guarantee

2-Year Guarantee

Built for years of wellness and relaxation

Free UK Mainland Delivery

Free UK Mainland Delivery

Delivery throughout England, Wales, and Scotland.

Expert Help, When You Need It

Expert Help, When You Need It

Friendly specialist support before and after your purchase. Book a free consultation.

Delivered flat-packed for self-assembly, with free UK mainland delivery on qualifying orders. Allow a full weekend for assembly and have at least one other capable adult available to help. Larger, heavier and multiroom models may require additional time and lifting assistance. A solid, level base and suitable delivery access are required.

For a complete setup, select Professional Installation and choose your preferred date, allowing for the stated production lead time. We’ll then arrange the installation around your requirements, including any additional preparation or works needed to accommodate your sauna where possible. Worth running our sauna build checker before delivery day, and our heater size calculator to confirm the heater this one needs.

Inside, this sauna holds about 9.3 m³ of air, about the size of a small box room. To get that properly hot you want roughly 8kW of heat, and the Harvia BC80 / BC60 Electric Heater Set is the one we'd point you at. Anything between 8kW and 12kW will do the job, so it comes down to how it looks, how you control it and what you want to spend. Our heater size calculator shows how we got to that and lists every heater that fits this model.

A heater this size can usually run off a normal household supply, but it pulls a lot of power, so your fusebox needs to have room for it. Your electrician will tell you in five minutes whether yours does. Whichever heater you pick, check what it needs before you buy.

The heater gets wired straight into your electrics by a qualified electrician. Never a plug, never an extension lead. If you're near us in Leicestershire we can arrange the electrician for you for a fee, so it's all done in one go. There's more detail in our full guide to electric heater setup.

Two things worth doing before you buy: our running cost calculator tells you what a session will cost to heat, and our solar calculator works out the panels and battery you'd need if you'd rather run it from the sun.

Inside, this sauna holds about 9.3 m³ of air, about the size of a small box room. The Cozy 12 OG Wood Burning Heater is the stove we'd suggest for it, and anything from the 12kW to the 24kW will work. Our heater size calculator shows how we worked that out and what else fits.

A wood stove needs no electrics at all, but it does get extremely hot. It has to sit a set distance from the timber walls and benches, usually with a heat shield behind it, and something fireproof underneath in case an ember drops out. The stove instructions give you the exact distances. The walls are solid timber with no insulation layer, so it takes a bit longer to warm up.

The chimney runs up and out through the roof. The chimney goes up through the roof panel, so that hole needs cutting and sealing properly. The fire also needs air to burn, and the room needs a vent low down and another high up so fresh air comes in and damp gets out. Have a think about where the smoke will blow, in relation to your house, your neighbours and where you sit outside.

Before you build, run our sauna build checker. It checks your vents, bench heights, clearances and drainage in a couple of minutes and flags anything that'll cause you grief later. Our full guide to wood-fired heater setup covers the rest. It's also worth a quick check with your council, as some areas have rules about chimneys and smoke.

The Beacon 250s needs standard Beacon range care, applied across its maximum standard length. After every session, leave the door open for twenty to thirty minutes to let the heat room dry out fully, preventing mould and dark staining on timber surfaces. Wipe benches down once cooled, and sand the interior lightly once or twice a year wherever group use creates the most contact wear.

If fitted with the optional window, clean it with a standard glass cleaner and soft cloth. Check the door seal periodically given the more frequent use this size is likely to see.

Externally, treat the Spruce exterior with a wood treatment every two to three years, budgeting proportionally more time for this longer structure compared with smaller Beacon sizes. Keep the base clear of debris and standing water along the full extended footprint, checking drainage carefully given the greater length of timber in contact with the ground.

Production takes 10-12 weeks, plus 1-2 weeks dispatch time for pallet haulage. This sauna is delivered flat packed unless otherwise stated. Free UK mainland shipping applies. If your order exceeds standard pallet limits due to length, weight, or quantity, additional pallet charges may apply and are quoted separately based on postcode.

Deliveries are kerbside and unloaded using the vehicle's tail lift, so no machinery or extra help is needed on your side. For properties with tight or restricted access, we can arrange delivery on a smaller vehicle with the goods handballed off instead — just let us know your access situation before ordering.

Please have a solid, level base and clear access ready before delivery. Pallet deliveries are kerbside only, and once unloaded you're responsible for moving the goods onto your property. Final positioning is not included unless you use our installation team. A comprehensive assembly manual is included, and self-assembly is straightforward with basic DIY skills.

Assembly & Installation

Delivered flat-packed for self-assembly, with free UK mainland delivery on qualifying orders. Allow a full weekend for assembly and have at least one other capable adult available to help. Larger, heavier and multiroom models may require additional time and lifting assistance. A solid, level base and suitable delivery access are required.

For a complete setup, select Professional Installation and choose your preferred date, allowing for the stated production lead time. We’ll then arrange the installation around your requirements, including any additional preparation or works needed to accommodate your sauna where possible. Worth running our sauna build checker before delivery day, and our heater size calculator to confirm the heater this one needs.

Electric Heater Setup

Inside, this sauna holds about 9.3 m³ of air, about the size of a small box room. To get that properly hot you want roughly 8kW of heat, and the Harvia BC80 / BC60 Electric Heater Set is the one we'd point you at. Anything between 8kW and 12kW will do the job, so it comes down to how it looks, how you control it and what you want to spend. Our heater size calculator shows how we got to that and lists every heater that fits this model.

A heater this size can usually run off a normal household supply, but it pulls a lot of power, so your fusebox needs to have room for it. Your electrician will tell you in five minutes whether yours does. Whichever heater you pick, check what it needs before you buy.

The heater gets wired straight into your electrics by a qualified electrician. Never a plug, never an extension lead. If you're near us in Leicestershire we can arrange the electrician for you for a fee, so it's all done in one go. There's more detail in our full guide to electric heater setup.

Two things worth doing before you buy: our running cost calculator tells you what a session will cost to heat, and our solar calculator works out the panels and battery you'd need if you'd rather run it from the sun.

Wood-Fired Heater Setup

Inside, this sauna holds about 9.3 m³ of air, about the size of a small box room. The Cozy 12 OG Wood Burning Heater is the stove we'd suggest for it, and anything from the 12kW to the 24kW will work. Our heater size calculator shows how we worked that out and what else fits.

A wood stove needs no electrics at all, but it does get extremely hot. It has to sit a set distance from the timber walls and benches, usually with a heat shield behind it, and something fireproof underneath in case an ember drops out. The stove instructions give you the exact distances. The walls are solid timber with no insulation layer, so it takes a bit longer to warm up.

The chimney runs up and out through the roof. The chimney goes up through the roof panel, so that hole needs cutting and sealing properly. The fire also needs air to burn, and the room needs a vent low down and another high up so fresh air comes in and damp gets out. Have a think about where the smoke will blow, in relation to your house, your neighbours and where you sit outside.

Before you build, run our sauna build checker. It checks your vents, bench heights, clearances and drainage in a couple of minutes and flags anything that'll cause you grief later. Our full guide to wood-fired heater setup covers the rest. It's also worth a quick check with your council, as some areas have rules about chimneys and smoke.

Cleaning & Care

The Beacon 250s needs standard Beacon range care, applied across its maximum standard length. After every session, leave the door open for twenty to thirty minutes to let the heat room dry out fully, preventing mould and dark staining on timber surfaces. Wipe benches down once cooled, and sand the interior lightly once or twice a year wherever group use creates the most contact wear.

If fitted with the optional window, clean it with a standard glass cleaner and soft cloth. Check the door seal periodically given the more frequent use this size is likely to see.

Externally, treat the Spruce exterior with a wood treatment every two to three years, budgeting proportionally more time for this longer structure compared with smaller Beacon sizes. Keep the base clear of debris and standing water along the full extended footprint, checking drainage carefully given the greater length of timber in contact with the ground.

Delivery

Production takes 10-12 weeks, plus 1-2 weeks dispatch time for pallet haulage. This sauna is delivered flat packed unless otherwise stated. Free UK mainland shipping applies. If your order exceeds standard pallet limits due to length, weight, or quantity, additional pallet charges may apply and are quoted separately based on postcode.

Deliveries are kerbside and unloaded using the vehicle's tail lift, so no machinery or extra help is needed on your side. For properties with tight or restricted access, we can arrange delivery on a smaller vehicle with the goods handballed off instead — just let us know your access situation before ordering.

Please have a solid, level base and clear access ready before delivery. Pallet deliveries are kerbside only, and once unloaded you're responsible for moving the goods onto your property. Final positioning is not included unless you use our installation team. A comprehensive assembly manual is included, and self-assembly is straightforward with basic DIY skills.

Cube Sauna Icon 250 S — Longest Standard Spruce Cube Sauna, 2.5m — spruce — side view 1

Maximum length, same familiar cube look

Beacon 250s sits at the top of the standard diameter Beacon range, extending to 250 centimetres in length while keeping the consistent 205 centimetre diameter found throughout the smaller models. Solid spruce construction throughout gives the structure genuine thermal mass at this larger scale, holding heat efficiently even with a full group inside and the additional heat loss that comes with more frequent door use.

At this length, Beacon 250s suits households who want the largest available size within the standard 205 centimetre diameter Beacon format, rather than moving to the wider XL versions that change the underlying diameter rather than simply extending the length. This keeps the proportions and overall feel of the cube format consistent with the smaller models, just stretched out to accommodate a proper group session comfortably.

Beacon 250s suits anyone who has decided the standard Beacon diameter suits their needs well enough that they simply want the maximum length available within that specification, delivering serious group capacity without changing the fundamental character of the format they were originally drawn to. It rounds out the standard diameter line at the size most suited to genuine family or group sessions, giving the format every bit of length it can offer before stepping up to a wider diameter altogether.

From Your Sketch
To Reality ✏️

A sauna built entirely around your space, your ideas and how you want it to feel.

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Stretch Out Without Extra Sprawl

Extra length within a familiar slim width lets five people settle in comfortably while the structure still slips neatly along a boundary.

Designed to Heat Efficiently

Every curve has a purpose, helping your sauna reach temperature faster while delivering an even, enveloping warmth.

Crafted from Exceptional Spruce

Natural spruce or heat-treated for durability and stability, our premium timber is chosen for its natural beauty and long-lasting performance.

Premium Tempered Glass

Our premium bronzed 8mm thick tempered glazing delivers a refined finish, excellent durability and complete confidence in every sauna.

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