The Leil Primo Corner is a modern 4 person outdoor sauna made to order in Estonia from 70mm glued Thermowood, with an EPDM roof, black metal corners and black double tempered corner glass. It measures 2.39m square and 2.46m high, with an L-shaped three-level thermo aspen bench where two adults can lie down. Choose an electric or wood-burning heater, a premium bench, interior and exterior LED lighting, and flat-pack or fully assembled delivery to mainland England and Wales.
Corner glass, room for four
A modern flat-roofed sauna with glass wrapping round one corner. Inside, an L-shaped bench on three levels seats four, and two can lie down. Made to order in Estonia: pick the heater, bench and lighting in the options above.
- Seats 4, and two adults can lie down
- Black corner glass: you see out, others don't see in
- Electric or wood-burning heater
- Flat-pack or fully assembled delivery
Short on space? See the Primo Mini.


Glass round the corner
Two walls of black double tempered glass meet at the corner, so you look out across the garden from the bench while staying private from outside. The extended walls frame the Thermowood front, and exterior LEDs can trace the outline after dark.
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Black corner glass
Double tempered glass on two sides, with premium black fittings.
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L-shaped three-level bench
Two 1.94m benches meeting in the corner. Two adults can lie down.
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70mm glued Thermowood
Thick logs that insulate well and go up quickly.
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Exterior LEDs
Optional strips round the roof line and base, as in these photos.
Three levels, lit from below
The L-shaped bench steps up in three levels, with LED strips under the bench and behind the backrests as an option.


Heaters for the Primo Corner
Choose electric or wood-burning in the options above, then pick a heater. Every one is on Leil's list for the Primo Corner. Prices show when you pick one.
Harvia Cilindro 9 / 11kW
Floor-standing on a steel base, with a big stone load. WiFi versions available.
HUUM HIVE Mini 9 / 11kW
A tall column holding 140kg of stones, with an air tunnel, for long, deep heat.
HUUM CORE 9 / 11kW
A clean, square black heater, with optional alder side panels.
HUUM FLOW Mini (wood)
A modern wood-burning stove with bedding, heat reflector and chimney.
UKU control
HUUM electric heaters need a UKU panel: Local or WiFi outside, or Glass WiFi inside the sauna.
Safety rails
Harvia and HUUM rails to fit round the heater you choose.

Bench, light and delivery
Pick any of these in the options above. Prices show as you choose.
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Premium bench
Leil's premium interior set, with a different bench layout. See the drawings in the gallery.
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Interior LEDs
Under the bench, on top of the backrest, or premium: top and bottom of the backrest and under the bench.
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Exterior LEDs
LED strips along the outer edges, for a glow after dark.
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Fully assembled delivery
Built and brushed in the factory, then delivered in one piece. You'll need a crane or forklift to unload.
Made in Estonia by Leil
Every Primo is built from the same materials.
70mm glued Thermowood
Thick glued Thermowood logs, 220mm high, so the walls go up quickly and insulate well.
EPDM roof
A flat roof with an insulated ceiling, covered in hard-wearing EPDM rubber.
Double tempered glass
Double-glazed tempered glass in the door and windows, with a premium black handle and hinges.
Thermo aspen benches
Three levels of thermo aspen bench, with bench skirts and backrests.
Insulated ceiling
An insulated thermo aspen ceiling, with three ventilation openings.
Estonian craftsmanship
Made to order by Leil Saunas in Estonia, a country with deep sauna traditions.
Full specifications
Sauna cabin
Build and materials
Made to order, delivered to your door
Each Primo Corner is built to your specification in Estonia, then delivered to your UK address.
Delivery included
Free to mainland England and Wales. We'll call to book a date once your sauna is ready.
Flat-pack
Arrives on a pallet. Build it yourself with the manual, or ask us for an installation quote.
Fully assembled
Built in the factory and delivered in one piece. You'll need a forklift or crane to unload.
Base and electrics
Plan a solid, level base and a qualified electrician for the heater.
Build your Primo Corner from £13,999
Choose your heater and lighting above. Made to order in Estonia with delivery to mainland England and Wales included.
Build your Primo CornerCall 0330 043 0870Leil® Primo Corner 4 Person Outdoor Sauna - 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.
Does this sauna include a heater?
What makes the Primo Corner different from a standard outdoor sauna?
Is the Primo Corner a good option for smaller gardens?
What is the benefit of the 70mm Thermowood construction?
Can I choose wood-fired or electric heating?
Is it available flat-pack or fully assembled?
Can Heracles arrange assembly or installation?
Is the Primo Corner suitable for year-round outdoor use?
What is the benefit of the panoramic double-glazed glass?
Is there a drain in the floor of the Primo Corner sauna?
What kind of floor does the Primo Corner have?
What’s the difference between the HUUM HIVE Mini and the HUUM CORE heater options?
What’s the difference between the standard bench layout and the premium bench layout?
Does installation include the electrical connection?
Can any qualified electrician connect the sauna, and do you provide guidance?
Can you recommend an electrician for the final connection?
How long does professional assembly take?
Is the Heracles installation team experienced with this model?
What sort of base does the sauna need?
Do you carry out site visits before installation?
Why has my sauna door gone out of alignment over time?
Can I see one of your saunas in person before ordering?
Do outdoor saunas need regular maintenance?
What paint or treatment should I use on my outdoor sauna?
How much treatment should I buy for the Leil Primo Corner?
Can this sauna be used commercially?
We strongly encourage confirming your order by 31 October. Orders confirmed in early November may still be possible, subject to availability.