NOOK Sauna - 9.75m²

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.

NOOK Sauna | Premium Outdoor Finnish Sauna Cabin

Configure your NOOK Sauna - 9.75m²

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.

NOOK Sauna - 9.75m² is a premium outdoor sauna by NOOK Prefab (Intergen Ventures SL). Arrives fully assembled and installed in one day with foundation included. Prices start from $52920.00 including turnkey installation. 3-year warranty. Energy A certification for year-round use. Traditional Finnish sauna experience in your garden.

  • < 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 minutes, 100°C 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. 30-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 for itself.

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 paid for itself 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.

— Architecture team · NOOK Prefab
  • Residential-grade architecture
  • 15+ years in modular
  • Energy A certified
  • EPDM manufacturer warranty
  • Double-glazed safety tempered
Turn your hotel, B&B or glamping site into a wellness destination

Wellness amenity for hospitality

Turn your hotel, B&B or glamping site into a wellness destination

HUUM outdoor sauna installed in under 2 hours. 10 m², fits 4–5 guests, app-controlled from reception. The amenity that lifts ADR and extends minimum stay — without a planning nightmare.

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

Do I need planning permission for an outdoor sauna?

Most often, no. A 9.75m² NOOK Sauna installed on helical-pile screws is typically classified as a non-permanent outbuilding that falls under Permitted Development rights or equivalent. Rules vary by local authority, so we supply every technical document — dimensions, electrical load, foundation specs — so your council can sign off quickly.

How much does an outdoor Finnish sauna cost?

A turnkey NOOK Sauna is priced at the premium end of the outdoor sauna market, reflecting the integrated HUUM Finnish stove, hemlock interior, vestibule, helical-pile foundation and full installation. Unlike barrel-sauna kits priced before foundation, electrics or assembly, every NOOK price is complete and installed — no surprises. Configure online for your live total.

What electrical supply does a NOOK Sauna need?

The integrated HUUM stove runs at approximately 6kW — most installations require a dedicated 32-amp circuit on a 3-phase supply for optimal heating. The unit arrives with full electrical pre-installation; you (or your electrician) simply connect to the nearest distribution board. All wiring is certified and compliant with EU safety standards.

Electric vs wood-burning sauna — which is better for a garden?

NOOK Sauna uses a premium electric HUUM stove — the standard for modern outdoor saunas. Electric advantages: no chimney, no smoke, app-controlled remote heating, instant ignition, no fuel storage, safer near property, and eligible for indoor-grade insurance. Wood-burning has more ritual but needs a flue permit, storage space and manual tending. For a garden-convenient daily wellness habit, electric wins.

How long does it take to heat the NOOK Sauna?

The HUUM stove reaches 80°C in 30–40 minutes and a full 100°C in about 45 minutes. Thanks to the app, you can start heating from work or home before you arrive — so your sauna is ready the moment you step in. Running cost per session is marginal — in line with any household appliance, depending on your local tariff.

Can I use the NOOK Sauna year-round, including winter?

Yes — outdoor saunas are particularly popular in winter. NOOK Sauna's hemlock-lined interior holds uniform temperatures beautifully, the integrated vestibule creates a thermal buffer between cold exterior and hot chamber, and the EPDM roof and sealed glazing keep the envelope weather-tight. Cold plunge or snow immediately after a 100°C session is the traditional Finnish ritual.

How do you clean and maintain a wooden outdoor sauna?

Interior hemlock: wipe benches and floor with a damp cloth after each session — no chemicals needed, as hemlock naturally resists bacteria. Exterior heat-treated wood: re-lacquer every 5 years to preserve finish (or choose Millboard composite for zero maintenance). The HUUM stove has no moving parts or filters — genuinely maintenance-free for its lifetime.

How often should you use an outdoor sauna for health benefits?

Research on Finnish populations shows 4–7 sessions per week (15–30 minutes each at 80–100°C) correlates with the strongest cardiovascular, metabolic and recovery benefits. Even 2–3 sessions weekly deliver measurable improvements in sleep, stress and muscle recovery. NOOK Sauna's app-controlled heating makes daily use practical — preheat from your phone before returning home.

What's included with a NOOK Sauna?

Everything needed to use it from day one: HUUM smart app-controlled electric stove (~6kW), hemlock-lined interior, tempered glass window, indirect LED lighting, integrated exterior vestibule, hemlock benches, covered entrance area, helical-pile foundation, transport, crane placement, full installation, electrical pre-wiring and 3-year warranty. Ready for its first session the day of delivery.

Is a home sauna worth the investment?

If you value wellness and use it regularly, yes — decisively. A single commercial spa session costs a meaningful fraction of a family dinner out; 2–3 weekly NOOK Sauna sessions pay back in 2–4 years versus a premium wellness-club membership, with zero travel time and the ritual available on demand. Property-value studies also show well-designed wellness amenities add measurable resale appeal to premium homes.