The Camilla XL is a 5-6 person traditional outdoor sauna, hand crafted in Estonia from Thermowood, with two opposing two-tier benches 2.18 m long, a full-length glass door, 42 mm walls and a Katepal black roof. It measures 2.05 m wide, 2.40 m deep and 2.10 m high, holds 8.2 m³, and comes flat packed or fully assembled with Harvia, HUUM or wood-burning heaters. Delivery to mainland England and Wales is included.
The big sister of the Camilla
Made with the same passion for detail as the Camilla, with a more spacious interior for five to six people. Hand crafted in Estonia from premium Thermowood.
- Seats 5–6 on two opposing benches
- 2.4 m deep, 8.2 m³ inside
- Electric or wood-burning heater
- Flat pack or fully assembled


Step into expansive comfort
Walk through the full-length glass door into a generous 2.4 m deep, 8.2 m³ room. 42 mm walls hold warm, even heat; the 28 mm front and back walls and the Katepal black roof complete the cocoon.
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Two opposing benches
Two-tier benches, 2.18 m long, with room to recline with family or friends.
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Thick walls
42 mm side walls, 28 mm front and back.
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Full-length glass door
Light in, view out.
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Katepal black roof
Shields your retreat from the weather.
Room for six


Choose the heat that suits your home
The Camilla XL has an internal volume of 8.2 m³ before any allowance for extra glass. An 8 kW or 9 kW heater is the normal electric choice. Harvia's manuals show 230V single-phase and 400V three-phase connections for the SW80, Cilindro PC90 and Spirit SP90XW, so a three-phase supply is not essential.
Harvia SW80 8 kW (7–12 m³)
A wall-mounted heater with built-in manual controls. Suits the standard XL; 230V single-phase or 400V three-phase. Manufacturer manual (PDF)
Harvia Cilindro PC90 9 kW (8–14 m³)
A floor-standing stone tower with built-in manual controls and a larger stone capacity; single or three-phase. Manufacturer manual (PDF)
Harvia Spirit SP90XW 9 kW, WiFi (8–14 m³)
A compact wall-mounted heater with an included Xenio WiFi panel and MyHarvia app control; single or three-phase. Manufacturer manual (PDF)
HUUM Drop 9 kW, UKU WiFi
Wall-mounted, 55 kg of stones, controlled from the UKU app. Configurable for 230V single-phase or 400V three-phase in line with HUUM's wiring guidance. Manufacturer manual (PDF)
Harvia M3 wood-burning heater and chimney (6–13 m³)
A traditional wood-fired option where a suitable flue, hearth and clearances can be provided, installed in line with the stove and chimney instructions and any building requirements. Manufacturer manual (PDF)
Electrical requirement
Every electric heater needs a dedicated circuit and final connection by a qualified electrician. A 9 kW heater draws roughly 40A on 230V single-phase: your electrician confirms the property has the capacity and specifies the cable, protection, isolation and installation method.

Options for the Camilla XL
Pick any of these in the options above.
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Glass
A full glass front to open up the view, or a panoramic glass back wall.
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LED lights
A lighting set made for sauna use, to set the mood.
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Two headrests
Wooden headrests for extra comfort.
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Accessories
A bucket, ladle and thermometer set, or our own Heracles Wellness bucket and ladle.
Smaller garden? See the Camilla 3-4.
Thermowood, hand crafted in Estonia
Thermowood shell
Thermally treated pine, hand crafted in Estonia. It is stable, durable and free of the resins and sugars that attract insects.
42 mm and 28 mm walls
Thick 42 mm staves form the floor, sides and roof; the front and back walls are 28 mm.
Full-length glass door
Tempered glass lets daylight in and makes the sauna a feature of the garden.
Alder benches
Alder stays cool to the touch, even when the air is hot.
Katepal black roof
Durable bitumen shingles protect the timber from rain and UV all year.
Steel bands
Two steel bands with tensioners clamp the staves round the end walls.
What is Thermowood?
Thermally treated pine. The timber is heated and cooled slowly, which takes out the resins, sugars and impurities and closes the cell structure, leaving a moisture content of only about 7%.

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Less warping
Very stable timber that resists warping, shrinking and rot.
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Lasts longer
Nothing left in the wood to attract insects, so it stays durable outdoors.
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Gentle heat
Low thermal conductivity gives a gentle, slow heat-up and a comfortable sauna.
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Better insulation
Keeps the heat in and outside noise out. No extra insulation layer is needed inside.
Easy care, once a year
Wipe the benches after each session and leave the door and vents open until the inside is dry. Re-treat the timber at least every 12 months: a breathable sauna finish inside and a UV-rated, water-resistant treatment outside. Coastal or very exposed sites may need it more often, and check the metal fixings, hinges and roof shingles now and then. A self-assembled sauna must be finished inside and out with a breathable wood oil straight after assembly to keep the warranty.
Full specifications
Sauna cabin
Build
Space and seating: the practical stuff
Drawn to scale from the factory's plans, seen from above. The figures are an average UK man: 1.74 m tall, 47 cm across the shoulders.
Sitting: 6 in comfort
Lying: 2 adults full length
Plan for about 3.0 × 3.8 m of garden
The sauna itself is 2.05 m wide, 2.40 m deep and 2.10 m high. Leave a gap around it so you can look after it:
- Behind and each side: about 50 cmEnough to stand in, so you can re-coat the outside (we suggest once a year), reach the isolator and control box, and adjust the steel hoops as the wood moves with the seasons.
- Against a wall or fence?That's fine. You just won't be able to paint that side, and it will be sheltered from the weather anyway. Ask your electrician to put the isolator on a side you can reach.
- In front: about 90 cmThe glass door opens outward, and you want a clear, safe step in and out.
- Wood-burning stove?The chimney needs safe distances to trees, fences and buildings. We'll check them with you against the stove manual.
- BaseLevel, and strong enough for the sauna, the heater and stones, and up to 480 kg of people. See “What base do I need?” in the FAQs.
Tight corner or close to a fence? Call us on 0330 043 0870 with a photo of the spot and we'll tell you if it works.
Cabin sizes from the factory's plans. Body sizes from UK adult data (Pheasant, Bodyspace). Heater position approximate.
Delivered flat packed, ready to build
Warranty: 2 years when installed by a professional or an approved installer, 1 year if you assemble it yourself.
Delivery included
Free to mainland England and Wales. The sauna comes flat packed on a pallet with installation instructions, and we unload it for you.
Build it or let us
Confident DIYers with basic carpentry skills can follow the step-by-step manual. Or use the Request an Installation Quote button and tell us about your access, base and location.
Fully assembled delivery
Available as an upgrade on the options above, where access allows. A forklift or crane is needed to unload it; with wide access a forklift is usually cheaper, or we can organise it for you.
Electrics
Plan a dedicated supply: a qualified electrician makes the final heater connection. Give them the heater manual before the sauna arrives.
Order your Camilla XL from £6,499
Choose your heater and options above. Delivery to mainland England and Wales is included.
Build your Camilla XLCall 0330 043 0870See it in person before you buy
Our owners show their saunas to people nearby. You message them privately through our app, and your details are only shared if you choose.
If nobody near you has this exact model, the app suggests similar models in the same range.
- Real owners near youSee the sauna in a real garden or home, not a showroom.
- Private messagingChat to the owner in our app. No phone numbers swapped.
- Similar models suggestedNo exact match nearby? We show you the closest models in the range.
Camilla XL Traditional Outdoor Sauna 5-6 Person - FAQ's
When will I receive my order?
The estimated delivery window is currently ….
This is an estimate rather than a guaranteed delivery date. The timing can vary depending on production schedules, dispatch arrangements or other unforeseen delays. If you need the product by a particular date, please call us before placing your order so we can check the current schedule with you.
Can I see one before I buy?
Yes. Through our Sauna Viewing Network, Heracles customers show their saunas to people who live nearby. Enter your postcode and the model you're interested in, and you can message an owner privately through our app. Your details are only shared if you choose.
If nobody near you has this exact model, the app suggests similar models in the same range.
Does this sauna include a heater?
Can I assemble the sauna myself?
How much does it cost to get it assembled by the Heracles team?
How long does it take to get hot?
How many people does this hold?
What base do I need?
Tikkurila Supi Saunasuoja (B&Q)
Struggling to find Tikkurila? Osmo UV Protection oil is a very good option (B&Q)