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£21,999.00

Delivery around 8-10 weeks from order.

Overview

Dimensions: 210(D) x 241(W) x 246.5(H)cm Full Specification

The Signature 240 is part of our flagship range of outdoor saunas, designed in the UK and built to thrive in the toughest coastal conditions. From the materials to the engineering, every detail has been considered — with a focus on durability, performance, and timeless design.

Manufactured in Europe under strict quality control, this sauna features powder-coated stainless steel fittings throughout, offering superior resistance to rust, salt, and changing weather. Even the screws and nails are stainless — because shortcuts aren’t part of our process.

Internally, the Signature 240 is finished in Grade A Thermo Aspen — a virtually knot-free, smooth-grain hardwood that looks incredible and is ideally suited to sauna interiors thanks to its low resin content, excellent thermal stability, and resistance to cracking under heat.

Externally, it’s cladded in thick, outdoor-grade burnt wood (also known as shou sugi ban), which is naturally weather-resistant and requires virtually no ongoing maintenance. This charring process gives the sauna a bold, premium finish that holds up beautifully over time.

The structure is insulated with FF-PIR, the gold standard in sauna insulation — ensuring consistent heat, energy efficiency, and comfortable use all year round.

New for this model: a galvanised, powder-coated steel base with heavy-duty adjustable legs, offering strength, stability, and long-term resilience — even on uneven terrain.

From the ground up, the Signature 240 has been built without compromise. If you’re looking for the very best in outdoor sauna design, this is it.

5
Seats
40 amp
Power Supply
EIRA
Brand
Electric
Heater Type
Cube Sauna
Sauna Type

Delivery and installation

(+£599.00)

Heater Options

40amp power supply required. Includes stones.

(+£1,468.00)

Choose door placement *

Choose glass type *

(+£1,299.00)

Bluetooth music

2 x Bluetooth speakers

Product price: £21,999.00
Total options:
Order total:
ÂŁ10,999.50 Deposit Required To Secure Order

£21,999.00 Inc. VAT

Signature 240 outdoor sauna by Eira Therapy

9kW HUUM Heater - The Ultimate Choice for Luxury Outdoor Saunas

We offer the 9kW HUUM heater with our signature range of saunas, combining rapid heat-up times with unmatched aesthetics. Designed with luxury in mind, its striking tear-drop, basket design not only ensures superior performance but also elevates the visual appeal of your outdoor sauna. Easy to maintain and crafted for efficiency, the 9kW HUUM heater is the perfect blend of style and functionality, making it the preferred choice for those who value premium quality.

 

EIRA Signature saunas for sale

Smart Control Options

With the 9kW HUUM heater, customers have the flexibility to choose from three advanced control units, designed to make using your sauna effortless. Equipped with thermostats, these controllers allow you to set your desired temperature—up to 110°C—while the sauna regulates itself, eliminating any guesswork.

  1. Local Controller – Adjust the sauna settings directly from the control unit, keeping things simple and straightforward.
  2. Wi-Fi Controller – Connect to your Wi-Fi router and enjoy the convenience of controlling your sauna from anywhere in the world via the HUUM app.

These smart options ensure your sauna is always ready when you are, offering unmatched convenience and control.

EIRA Signature Range- Luxury Outdoor Sauna.

19mm Thick Burnt Wood – A Stylish and Durable Exterior for Outdoor Saunas

The 19mm thick burnt wood exterior is a standout feature of our signature saunas, chosen for its sleek, contemporary aesthetic that perfectly complements modern outdoor spaces. More than just visually striking, burnt wood offers exceptional benefits for outdoor sauna cladding. Its natural charring process enhances resistance to weathering, moisture, and pests, making it ideal for year-round outdoor use. This sustainable material is also low maintenance, with its unique texture adding an extra layer of sophistication to the sauna’s design.

 

Signature 240, Luxury Outdoor Sauna for sale

Contemporary Cube Design – A Seamless Blend of Luxury and Nature

Our cube-shaped sauna design redefines outdoor luxury with its bold, contemporary structure. The full panoramic front window and corner glass door invite you to fully embrace your outdoor surroundings while enjoying the ultimate sauna experience. Choose between mirrored glass, offering enhanced privacy in certain lighting conditions and a design that blends seamlessly with the environment, or smoked glass, providing a sleek, elegant finish that elevates the overall aesthetic.

The cube design’s expansive glass frontage makes it the perfect statement piece, combining modern architecture with the serenity of nature.

Please note: mirror glass/ mirror tint enhances privacy in certain lighting conditions but does not provide complete privacy. Visibility may vary depending on lighting conditions, including internal lighting and direct sunlight.

Outdoor sauna with galvanised steel base and adjustable heavy duty legs.

Outdoor Sauna With Galvanised Steel Base with Adjustable Legs

The Signature 240, outdoor sauna has been designed to last. Featuring a heavy-duty galvanised steel base, powder-coated in black with heavy-duty galvanised steel adjustable legs.

The lifespan of an outdoor sauna will only last as long as the base; no need to worry about the base rotting in the future. Furthermore, an additional benefit of the base being made of high-quality galvanised steel is that it’s movable. So, if in the future you decide to move house, you can take the sauna with you.

The adjustable legs means that the sauna can even be installed on uneven ground, providing it’s solid and can withstand the weight of the sauna.

EIRA Signature saunas for sale

Premium Wood Selections – Crafted for Beauty and Performance

The Signature 240 sauna showcases premium wood choices, combining elegance with functionality. The walls, ceiling, benches, and backrest are crafted from Grade A Thermo Aspen, renowned for its sleek, knot-free finish and exceptional suitability for sauna environments. For the flooring, we use Grade C Thermo Pine, valued for its durability and ability to withstand heavy foot traffic.

The thermal treatment process enhances the stability of these woods, improving their resistance to moisture and temperature fluctuations. This reduces the risk of warping, cracking, or shrinking, ensuring the sauna remains as stunning as it is enduring, even under high heat and humidity.

 

Signature outdoor sauna for sale

Glass fronted outdoor sauna

This is a glass-fronted outdoor sauna, thoughtfully designed so that you can enjoy your outside space whilst embracing the warmth and comfort from the inside of the sauna.

Signature 240, Luxury Outdoor Sauna for sale

Thoughtfully Designed LED Lighting – Warm Illumination for Ultimate Comfort

Our saunas are equipped with sleek LED lighting that elevates the ambience and enhances the overall experience. Behind the backrest, an elegant LED light gently washes upwards along the back wall, creating a warm, inviting glow. The upper bench features discreet downlighting, offering subtle illumination that perfectly complements the sauna’s luxurious design.

Careful consideration has been given to the placement and direction of the lighting. The LED on the upper bench is strategically positioned to ensure it doesn’t shine into the eyes of those relaxing on the lower bench, prioritising both comfort and functionality. This attention to detail ensures a perfectly lit, soothing environment for every sauna session.

Outdoor cube shaped sauna with a sloping rubber roof.

Discreet Pitched Roof – Waterproof and Durable

While the sauna maintains its sleek, cube-shaped appearance, it features a cleverly concealed pitched roof, hidden by shuttering around the exterior. This innovative design ensures both aesthetics and practicality are seamlessly integrated.

The roof construction begins with marine ply, a highly durable and waterproof material, followed by a rubber waterproof layer to create a fully leak-proof structure. The subtle pitch allows water to flow effortlessly to the back of the sauna, where it is directed out through a discreet drain on the back wall. This thoughtful design ensures long-lasting performance while preserving the sauna’s contemporary look.

Signature 240 outdoor sauna by Eira Therapy

600mm Deep Benches

The Signature 240 includes benches that are 600mm deep, the perfect size to lay down on- no more hanging off the edge!

EIRA Signature saunas for sale

Customisable Door Placement – Designed to Fit Your Space

To ensure your sauna perfectly complements your outdoor area, we offer the option to customise the door placement. Choose whether you’d like the door positioned on the right-hand or left-hand side, allowing you to tailor the design to suit your space and preferences.

This flexibility ensures that your sauna integrates seamlessly into your environment, combining practicality with luxury.

Fully insulated outdoor sauna

Efficient Insulation

The Signature 240 Luxury Sauna is designed with exceptional insulation to maximise efficiency and comfort. We use 30mm thick Finnfoam FF-PIR insulation panels with diffusion-proof aluminium laminate, renowned for their superior performance in high-temperature and high-humidity environments—ideal for saunas.

Here are the key benefits:

  • Optimal Thermal Performance: The 30mm FF-PIR insulation ensures superior thermal efficiency, allowing the sauna to heat up quickly and retain warmth. Despite its spaciousness, the Signature 200 remains incredibly energy-efficient.
  • Temperature Resistance: With a service range of -50°C to +120°C and the ability to temporarily withstand over +200°C, FF-PIR insulation is safe and reliable for sauna conditions.
  • Moisture Protection: The aluminium laminate on the FF-PIR panels provides excellent air-tightness and water vapour resistance, preventing moisture penetration and maintaining the insulation’s integrity over time.
  • Leak-Proof Design: Seams between panels are sealed with polyurethane foam and heat-resistant tape, ensuring an airtight and efficient structure.

Using 30mm of FF-PIR insulation, the Signature 240 Luxury Sauna guarantees exceptional thermal performance, durability, and energy efficiency. This high-quality insulation enhances your sauna experience and ensures a long-lasting, cost-effective investment.

Sauna

Health benefits of using a sauna

Over the years, saunas have become a popular choice for those seeking to improve their health and wellness. Let’s face it, saunas feel amazing! And the fact that they’re incredibly good for you is a massive bonus.

Here are some impressive health benefits associated with using a sauna:

  • Improved Circulation: As your body temperature rises in the sauna, your blood vessels dilate, increasing circulation. This helps deliver oxygen and nutrients to your muscles and organs while removing toxins and waste products from your body.
  • Reduced Stress: Sauna sessions have been shown to lower cortisol levels, helping you feel more relaxed and at ease.
  • Enhanced Immune Function: Regular sauna use can boost your immune system, making you less susceptible to illness and infection.
  • Better Skin Health: The heat and steam of a sauna open up your pores, allowing your skin to breathe and release toxins. This can lead to clearer, healthier-looking skin.
  • Pain Relief: If you suffer from joint pain or muscle soreness, spending time in a sauna can help. The heat increases blood flow to your muscles and joints, relieving pain and stiffness.

So there you have it – just a few of the many health benefits that come with using a sauna. If you’re looking to relax, unwind, and boost your overall health and well-being, investing in a sauna might be just what you need.

Specifications

Capacity
5
Seat Layout
2 tier floating benches
Dimensions
210(D) x 241(W) x 246.5(H)cm
Internal Sauna Dimensions
197(D) x 215(W) x 209(H- front) x 200 (H- back)cm
Benches Depth
60cm
Material Used For Walls And Ceilings
Grade A Thermo Aspen
Material Used For Floor
Grade C Thermo Pine
Mateiral Used For External Walls
19mm Burnt wood
Material Used For Roof
Rubber + Marine Ply
Insulation
30mm FF-PIR with diffusion-proof aluminum laminate
Frame
Powder coated galvanised steel
Adjustable Legs
✔️ Heavy duty galvanised steel
Weight
815kg
Stainless Steel Lock With Key
✔️ (with protective black coating)
Stainless Steel Hinges
✔️ (with protective black coating)
Towel Hooks
✔️
Electrical Requirements
40 amp (single phase)
Heater
9kw HUUM electric heater
Sauna Ventilation
✔️ (adjustable)
Window and Glass Door
Smoked single glazed 8mm tempered glass with mirrored option (front glass split into two pieces)
LED Lighting
2 x LED lights with switch
Sauna Style
Cube

More Information

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