Merula Sauna

Contemporary bathing experience with large panoramic window

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:: £57,200 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

Merula Sauna updated for 2025

The Merula Sauna now features a welcoming deck area with a covered porch. This provides extra sheltered space for belongings and the option to add an outdoor shower. We’ll be sharing new imagery of the Merula soon, for now, please refer to the updated sauna plans.

Merula Sauna Plan 2025

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.

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 Merula Sauna seats up to 7 people comfortably.

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.

Flooring built for busy

Choose between light or dark grey high traffic porcelain tiles with concrete effect.

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.

Merula Sauna design detailing

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

The Merula Sauna features:

Panoramic high temperature silicone sealed double-glazed window
Sloped corrugated roof with clipped eaves creating a streamlined look
Wire-brushed black Thermowood with a textured finish that accentuates the natural grain of the wood
In-house handmade double-glazed door, entrance deck and porch.

View sauna plan

Order a Merula

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.

Make it your own - customise with optional extras, or go bespoke

Optional extras for the Merula

Extended decking

Extend the existing deck around the sauna to accommodate a bench, outdoor shower or cold plunge. We can also design and build larger custom decking to fit your sauna site.

Outdoor bench

Made from matching black timber, an outdoor bench on the rear deck can be added for changing, or a moment of pause. 600mm wide on Tyto, and 900mm on Falco & Merula models.

Outdoor shower

Outdoor shower can be fitted above a rear deck to provide cool down and refresh between sessions. Features large monsoon shower head and a side mounted tap for filling the sauna bucket.

Sauna heater Wi-Fi control

Don't wait. The sauna heater can be controlled via an app on your smartphone, offering remote control to set your desired heat level in advance of your sauna experience.

Internal changing area

Complete the sauna experience with an internal changing area (1.2m) providing a private space with bench and towel hooks. Available for both our Falco and Merula sauna models.

Privacy glass

One way mirrored privacy glass providing undisturbed views and clear vision. Serves a dual purpose of both privacy, and adding a stunning reflective feature to the sauna location.

Outdoor log store or shelving

Great for a wood-fired sauna, an outdoor shelving unit can be can be added to the rear decking area providing extra storage for accessories or as a dedicated log store.

Order a Merula

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