NOOK Sauna | Premium Outdoor Finnish Sauna Cabin

NOOK Sauna

NOOK Sauna is a premium 9.75m² outdoor Finnish sauna — your wellness ritual just steps from home. Features a smart app-controlled HUUM electric heater (~6kW), hemlock-lined interior, tempered glass window, integrated exterior vestibule as a thermal buffer, and indirect LED lighting.

Specifications: exterior 2.50 × 3.90m · capacity 4-5 persons · heats to 80°C in 30-40 minutes · 3-year warranty · maintenance-free heater.

Customization: exterior cladding in heat-treated wood (black or oak) or premium Millboard composite.

Turnkey delivery: transport, crane, foundation, electrical pre-wiring and complete installation in under 2 hours all included.

Configure your NOOK Sauna

NOOK Sauna is a premium 9.75m² outdoor Finnish sauna — your wellness ritual just steps from home. Features a smart app-controlled HUUM electric heater (~6kW), hemlock-lined interior, tempered glass window, integrated exterior vestibule as a thermal buffer, and indirect LED lighting.

Specifications: exterior 2.50 × 3.90m · capacity 4-5 persons · heats to 80°C in 30-40 minutes · 3-year warranty · maintenance-free heater.

Customization: exterior cladding in heat-treated wood (black or oak) or premium Millboard composite.

Turnkey delivery: transport, crane, foundation, electrical pre-wiring and complete installation in under 2 hours all included.

Exterior Finishes

Interior Finish

Structure & Design

Outdoor Spaces

Interior Layout

Base & Foundation

Functional Extras

Upgrades ready to use from day one

Installation & Transport

Complete service to your garden

Transport (Estimated) ?

Summary

Base Model—
Options—
Add-ons—
Total Price (excl. tax, excl. transport)—
Deposit —

Got a question? Message us on WhatsApp or book a call. We’ll guide you through every step.

  • < 2h install
  • HUUM finnish stove
  • 4–5 people
  • 100°C max temperature
  • 3 years warranty

The outdoor sauna, done properly

10 m² of authentic outdoor sauna. App-controlled HUUM heater. Hemlock interior. Hot at 90°C in under half an hour — ready to use less than two hours after the truck arrives.

10 m² of authentic outdoor sauna. App-controlled HUUM heater. Hemlock interior. Hot at 90°C in under half an hour — ready to use less than two hours after the truck arrives.

Why it costs what it costs

The three pillars of a sauna built to last decades

Real heat. Noble wood. A cabin to share. The difference between a NOOK Sauna and a flat-pack barrel.

The heat

6 kW HUUM stove, app-controlled from your phone. 80°C in 30–40 minutes, 100°C in about 45 when you want proper löyly. Cheap outdoor saunas ship with unbranded heaters that struggle past 70°C and burn through the electricity bill trying. A full heat-up here costs roughly the price of a decent coffee.

The wood

Clear Canadian hemlock inside — the industry benchmark. No resin bleed, no splinters, cool to sit against at 100°C. The exterior is thermally-modified timber: rot-resistant for 30+ years without the annual re-treat that cheap pine and spruce demand.

The cabin

10 m² with integrated outdoor vestibule. Fits 4–5 people in real comfort. 80 mm rock-wool insulation, vapour barrier, safety-tempered glazing, architect-designed. Not a 4 m² barrel in the corner — a proper space to share.

The honest comparison

NOOK Sauna vs cheap outdoor saunas

A budget barrel sauna and a NOOK Sauna are not the same product. Here's what your money actually buys.

Category
NOOK Sauna
Budget outdoor sauna
Capacity & size
10 m² · fits 4–5 adults comfortably · integrated outdoor vestibule
4–5 m² barrel · 2–3 adults squeezed in · no changing area
Heater
HUUM 6 kW Estonian stove · app-controlled · reaches 100°C
Unbranded 4.5–6 kW · manual dial · struggles past 70°C
Interior wood
Clear Canadian hemlock · no resin bleed · cool to touch at 100°C
Basic pine or spruce · resin bleeds when hot · splinters over time
Exterior & weatherproofing
Thermally-modified timber · EPDM roof membrane · 30+ year lifespan
Softwood cladding · felt or shingle roof · annual re-treat needed
Insulation & year-round use
80 mm rock wool + vapour barrier · hot at 90°C in 30 min, even in January
No insulation or thin foam · 60–90 min heat-up · bleeds heat fast
Installation
Turnkey · we deliver and install in under 2 hours
Self-assembly flat-pack · 2–4 weekends · crane hire extra
Warranty & aftercare
3-year structural warranty + HUUM heater warranty + aftercare team
Retailer warranty only · parts shipped flat-pack from abroad

How you'll live it

One sauna, four ways to live it

Daily reset. Muscle recovery. Cardiovascular health. Shared ritual.

The twenty-minute reset, four nights a week

The twenty-minute reset, four nights a week

Work day ends. Kettle off, sauna on from your phone on the way home. Forty-minute heat-up. 20 minutes inside at 90°C. Your shoulders drop. Sleep that night isn't something you chase — it comes and finds you.

Muscle recovery without driving to a spa

Muscle recovery without driving to a spa

Post-workout heat sessions are linked to reduced DOMS, faster cardiovascular recovery and lower perceived fatigue. At boutique-spa prices, you'd do it twice a month. In your garden, it's tonight, tomorrow, Thursday.

4–7 sessions a week, backed by 20 years of data

4–7 sessions a week, backed by 20 years of data

A landmark 20-year study of 2,300+ middle-aged men (Laukkanen et al., JAMA Internal Medicine, 2015) linked frequent sauna use to a 50% lower risk of fatal cardiovascular events. The app makes that frequency realistic. The sauna being twenty paces from the kitchen makes it inevitable.

Friday night, five people, one sauna

Friday night, five people, one sauna

Most garden saunas cram in three adults. NOOK Sauna sits 4–5 in real comfort, with an integrated outdoor vestibule for cooling off between rounds. Friday with friends. Slow Sunday with your partner. The kind of hospitality a barrel sauna cannot deliver.

Payback

The price, viewed long-term

Three ways to look at the price. One conclusion: it pays back.

Cost per session

Less than a coffee, per session

Four sessions a week over ten years adds up to more than 2,000 rituals. Electricity per session is marginal — well under the price of a decent coffee. A single boutique-spa visit often costs more than you'll spend here in a month.

Replaces wellness memberships

Paid back in 5–6 years

A premium wellness club with sauna access in London, New York or Madrid costs more per month than maintaining your NOOK Sauna costs per year. In five to six years of weekly use, the sauna has covered its own cost in the wellness-club fees you'd have spent anyway — no drive, no booking window, no shared changing room.

Property value

The amenity buyers pay up for

At-home wellness is now table-stakes for premium buyers. Homes with an outdoor sauna list above comparable properties. And if you ever move, the NOOK Sauna goes with you — reversible foundation, no concrete, no building works.

The full spec, opened up

Everything included with your NOOK Sauna — no hidden extras

HUUM stove, hemlock interior, integrated vestibule, transport, crane, foundation and install in under 2 hours — all inside the price.

NOOK Sauna interior with hemlock wood and tempered glass
What the price includes
  • Full factory assembly at our workshop
  • Transport to your destination
  • Crane hire and offloading
  • Helical-pile foundation (where applicable)
  • Electrical pre-install ready for hookup
  • Complete installation in under 2 hours
  • Handover and final quality checklist
HUUM stove & controls
  • ~6 kW Finnish HUUM stove
  • App-controlled — start from your phone
  • 80 °C in 30–40 minutes, 100 °C for proper löyly
  • Volcanic stones included
  • Temperature sensor and thermal protection
Interior & benches
  • Canadian hemlock interior cladding — no resin, cool to touch
  • Two-tier hemlock benches
  • Water-resistant floor with drainage
  • Warm indirect LED lighting
  • Safety-tempered glass window
Exterior & roof
  • Exterior in thermally-modified timber (black or oak) or premium Millboard composite
  • EPDM roof with 50+ year lifespan
  • 80 mm under-roof insulation
  • Integrated outdoor vestibule as thermal buffer
  • Integrated aluminium gutters
Integrated vestibule
  • Covered entry zone — thermal buffer and changing area
  • Protects the cabin from heat loss when opening
  • Room for an outdoor bench and coat hooks
Warranty & aftercare
  • 3-year structural warranty
  • HUUM manufacturer warranty on the stove
  • Maintenance-free stove (no moving parts or filters)
  • Hemlock interior: damp cloth cleaning
  • Thermally-modified exterior: re-lacquer every 5 years
NOOK factory
NOOK factory
NOOK factory
NOOK factory

Architecture & craft

A sauna, designed as a piece of architecture

Every NOOK Sauna is built with the materials its environment demands: Canadian hemlock interior (no resin, cool at 100°C), 6 kW HUUM stove, EPDM roof, integrated thermal vestibule, 80 mm insulation. The difference between a sauna that lasts decades and one that doesn't is the wood species, the stove manufacturer, and the joint detail. We chose each one.

— Equipo de arquitectos · Espacio NOOK
  • Residential-grade architecture
  • 15+ years in modular
  • Energy A certified
  • EPDM manufacturer warranty
  • Double-glazed safety tempered
A black-timber NOOK Sauna outdoors beside a guest accommodation, bookable by the session

Wellness service for accommodation operators

Add a bookable sauna to the property you already run

A HUUM outdoor sauna, installed in under 2 hours. 10 m², fits 4–5 guests, app-controlled from reception. It is booked by the session and sits at the top of your rate card — model it with your own numbers. Filing and approvals remain with you and your consultants.

Buy with confidence

Every reason to go ahead, no reason to worry

We take responsibility for the process. You decide if NOOK is right for you.

3-year warranty

Structural warranty covering frame, cladding, glazing and factory-installed components.

Refundable deposit

Fully refundable within 30 days if your site isn't viable.

Reversible foundation

On helical-pile screws: relocate or remove with no permanent land impact.

Private consultation

30 minutes with our design team. No commitment.

Your NOOK in 4 Steps

Designed so you enjoy the process — not just the result.

Site Validation

Site Validation

Send us photos of your garden and we validate everything in 5–7 days: crane access, ground type, and the exact transport cost. No unnecessary site visits, no time wasted.

1 week (once your NOOK is reserved)
Your NOOK in 4 Steps

Designed so you enjoy the process — not just the result.

Site Validation

Send us photos of your garden and we validate everything in 5–7 days: crane access, ground type, and the exact transport cost. No unnecessary site visits, no time wasted.

1 week (once your NOOK is reserved)

Frequently asked questions

How much does a NOOK outdoor sauna cost?

From €39,000, excluding VAT: the finished NOOK Sauna, ex works.

It comes with a HUUM electric heater, a hemlock interior with LED lighting and a covered outdoor vestibule with a shower. Transport, foundations and installation are quoted for your address, and we organise all three.

How long does a NOOK outdoor sauna take to heat up, and what heater does it use?

80 °C in 30–40 minutes, and up to 100 °C, with a HUUM electric heater.

Being electric, there is no wood to load.

How many people fit in a NOOK outdoor sauna?

4 to 5 people, in a 5.69 m² sauna room.

The unit measures 4 × 2.50 m and includes a covered outdoor vestibule with a shower, floored in Millboard composite.

Do I need planning permission for an outdoor sauna?

It depends on where you are and how you'll use it.

NOOK Sauna sits on screw piles rather than permanent foundations and can be lifted out and moved, which often helps. We look at it with you before you commit to anything, and where planning consent is needed, that comes first.

How long does a NOOK outdoor sauna take to build and install?

It is built in 8–12 weeks, arrives finished and is connected in hours.

Foundations are done beforehand, on a separate visit: screw piles, your existing level concrete base or concrete pads.

Can you use an outdoor sauna in winter?

Yes, all year. The outdoor vestibule is covered, with a shower and a Millboard composite floor.

The sauna room has a glazed window onto the view. Add a cold plunge or a hot tub if you like: heat, cold, and doing nothing afterwards.

What timber is a NOOK outdoor sauna made from, inside and out?

Inside, hemlock with LED lighting, with cedar as an option. Outside, thermo-treated timber in black or oak, or Millboard composite.

The sauna room has a glazed window onto the view.

Can a NOOK outdoor sauna be part of a spa circuit at a hotel or glamping site?

Yes. It works as a private sauna or as part of a spa circuit with a cold plunge or hot tub.

A NOOK 10 or NOOK 20 alongside can be the massage cabin, the yoga room or the quiet room: the sauna is the centre and the NOOKs build the circuit around it. Model it with your own numbers: we don't give income forecasts.

How much is the deposit to reserve a NOOK outdoor sauna?

€2,000 (or the equivalent in pounds or dollars), refundable if your site turns out to be unviable.

You then complete 30% to secure your production slot, and pay the remaining 70% when production starts.

What guarantee comes with a NOOK outdoor sauna?

A 3-year guarantee on residential units, plus each component's own manufacturer warranty. Hospitality guarantees are tailored to each project.

Every detail is finished before it leaves our production base, so it still looks new in ten years' time.