Lutra Sauna

Complete contrast therapy experience

Tyto Sauna overview

Our Tyto Sauna packs the very best of all our designs into one streamlined thermal experience, to elevate any outdoor space or garden.

Our saunas are handbuilt in our workshop in Devon, each made to order. We offer full customisation and optional extras to fit your requirements.

Size:: Seats up to 4 people
Starting from:: £42,800 incl.VAT
Current lead time:: 3 - 6 months
Lighting:: LED internal & external lighting
Internal cladding:: Thermo aspen
External cladding:: Black thermo larch
Heater option:: Wood-fired (8.5kW) or electric heater (6kW)
Included customisations:: Door orientation (left/right)
Included features:: Frameless panoramic window

Falco Sauna overview

Now in its 3rd generation, the Falco Sauna is our most popular model, and the backbone of our sauna range.

With its Corten overhang roof, a more private window and softer cabin styling, it is well suited to countryside or woodland properties.

Our saunas are handbuilt in our workshop in Devon, each made to order. We offer full customisation and optional extras to fit your requirements.

Size:: Seats up to 6 people
Starting from:: £58,200 incl.VAT
Current lead time:: 3 - 6 months
Lighting:: LED internal & external lighting
Internal cladding:: Thermo aspen
External cladding:: Black larch
Heater option:: Wood-fired (9.8kW) or electric heater (9kW)
Included customisations:: Door orientation (left/right)
Included features:: Extended Corten roof finishing

Merula Sauna overview

Contemporary style offering the most advanced in sauna design and envelope detailing.

The large panoramic window provides lots of light and a connection with the surroundings. This is our largest window design and something we are especially excited to offer within our range for people to enjoy.

Our saunas are handbuilt in our workshop in Devon, each made to order. We offer full customisation and optional extras to fit your requirements.

Size:: Seats up to 7 people
Starting from:: £70,400 incl.VAT
Current lead time:: 6 - 9 months
Lighting:: LED internal & external lighting
Internal cladding:: Thermo aspen
External cladding:: Black larch
Heater option:: Wood-fired (9.8kW) or electric heater (9kW)
Included customisations:: Door orientation (left/right)
Included features:: Large panoramic window

Entrance deck with porch

Lutra Sauna overview

Our contrast therapy sauna — combining some of our most requested customisations to create a full and immersive contrast therapy experience.

This all-in-one design features extended side decking with a roof overhang, fully integrated shower unit, and a seamlessly integrated Ice Bath by Brass Monkey.

Our saunas are hand-built in our workshop in Devon, each made to order. We offer full customisation and optional extras to fit your requirements.

Size:: Seats up to 6 people
Starting from:: £POA incl.VAT
Current lead time:: 6 - 9 months
Lighting:: LED internal & external lighting
Internal cladding:: Thermo aspen
External cladding:: Black larch
Heater option:: Wood-fired (9.8kW) or electric heater (9kW)
Included customisations:: Deck orientation (left/right)
Included features:: Extended side decking with Corten roof

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Rear wall extension & integrated shower

Calluna Sauna overview

Our flagship sauna offering an uncompromising, complete bathing experience for up to 12 people.

The Calluna includes design details drawn from our experience with building larger-scale cabins. Integrated changing room, oversized picture window, outdoor shower.

Our saunas are handbuilt in our workshop in Devon, each made to order. We offer full customisation and optional extras to fit your requirements.

Size:: Seats up to 12 people
Starting from:: £POA incl.VAT
Current lead time:: 6 - 9 months
Lighting:: LED internal & external lighting
Internal cladding:: Thermo aspen
External cladding:: Thermowood
Heater option:: Wood-fired (15kW) or electric heater (20kW)
Included customisations:: Door orientation (left/right)
Included features:: Extended Corten roof finishing

Internal changing room

Internal glass door with auto close

Aquila Sauna overview

Aquila is a fully off-grid, mobile sauna designed to deliver restorative heat and cold therapy in remote and natural settings across the UK.

The Aquila sauna seats six and blends refined design with sustainable materials to create a transportable wellness retreat. This rustic cabin-style sanctuary comes complete with a traditional Narvi wood-burning stove, solar-powered lighting and an outdoor cold shower.

Our saunas are handbuilt in our workshop in Devon, each made to order.

Size:: Seats up to 6 people
Starting from:: £POA incl.VAT
Current lead time:: 4 months
Lighting:: Solar powered LED lighting
Internal cladding:: Thermo alder
External cladding:: Black larch
Heater option:: Wood-fired (16kW)
Included features:: Folding entrance deck & Corten roof

Integrated log store

Integrated shower

Browse range

Explore the details

The sauna exterior

We use Thermowood for all our external cladding, brushed to enhance the texture in the grain. A black natural oil is applied giving the sauna a beautiful finish which allows it to sit modestly into the landscape. Each of our saunas feature a welcoming entrance deck and finishing touches of coat & robe hooks.

The sauna interior

Internally the sauna features breathable and natural sheep's wool insulation with a slow grown larch vapour cavity, allowing for moisture management and ventilation. Thermo aspen panelling creates a beautiful wooden environment and helps regulate humidity, whilst being comfortable to the touch.

Enduring the elements

Our materials are selected for durability in fluctuating temperatures and humidity, including thermo-treated timber and commercial-grade flooring. We use corrosion resistant stainless steel hardware, with many components custom-designed and made in house.

Light levels, at the right levels

Brighter mornings and toned-down eves. Set your mood with adjustable Internal 3000k LED lighting, lined below benches and above backrest. Illuminating the outside decking are Astro LED wall-mounted black downlights.

Staying seated & heated

Thermo aspen bench boards with integrated angled backrest for comfort. Finished with Stelon sauna oil, a wood barrier which is also naturally antibacterial. The Falco Sauna seats up to 6 people comfortably.

Window into nature

Large high temperature sealed-double glazed windows bring an intimate level of connection to the surrounding landscape, as you bathe in the sauna experience.

OUT OF THE VALLEY X BRASS MONKEY

The Ice Bath

The ultimate cold water immersion experience that has it all. Beautifully designed and built to last. Fully automated ice engine, advanced filtration and UV cleaning, app controlled.

The Ice Bath is seamlessly integrated by the Out of the Valley team with matching black larch cladding.

Brass Monkey Ice Baths can reach 0°C.

Lutra Sauna design detailing

There are some features which make each of our individual sauna models unique and specific to their purpose.

The Lutra Sauna features:

Corten weathering steel, featuring its signature brown-orange patina that evolves over time, gaining strength and character.
Extended side decking with a roof overhang, a solid rear wall extension, and a built-in outdoor bench.
A fully integrated shower unit, complete with a frost protection cable and a custom in-set shower tray.

View sauna plan

Order a Lutra

Questions? Read our FAQs or contact us to discuss your sauna project.

Heated discussion

Traditional wood-fired

If the sauna is going to be positioned far from any utilities in an off-grid location, a wood-fired heater is the best choice. Wood heaters do take a little longer to heat up, but once up and running, they create a lovely constant heat and add to the atmosphere with their flickering flames.

Wood-fired (9.8kW) by HUUM

Running costs: The cost of running a wood-fired heater will depend on what you pay for your seasoned logs. A sauna session would require a small basket of logs and kindling. By bringing all the logs into the sauna they will heat up prior to being put in the stove, increasing heat output and efficiency.

Electric

Electric heaters are easy to regulate and can even be controlled from your phone, meaning the sauna can be up to temperature when you get home. For electric heaters, power can be placed in a trench; a local electrician can check your supply and arrange this work.

Electric (9kW) by HUUM

Running costs: The cost to run an electric heater depends on their size, e.g. a 9kW electric heater will use 9kW of power per hour, based on £0.32 per kW, (an hour of heat = £2.88). Once room is up to temperature, a thermostat will turn the heater on & off as required, so that hourly rate could be halved.

The quality of craftsmanship and attention to detail was outstanding. Our client was thrilled with the outcome, and the experience with Out of the Valley was seamless and stress-free. We look forward to working with them again in the future.

Oliver Leech Architects
Lutra Sauna, Gloucestershire UK

Working with the Out of the Valley team on the sauna for our project was an absolute pleasure. From the initial design phase through to build and final delivery, the team provided exceptional service and expertise every step of the way. Their collaborative approach ensured that the sauna was not only tailored to the site, but also aligned perfectly with our client's vision and needs.

Oliver Leech Architects
Lutra Sauna, Gloucestershire UK

Order a Lutra

Go bespoke: We offer full customisation and optional extras to fit your requirements. Please use our enquiry form to get started.

View sauna plan Download 2025 Sauna Brochure