01
Footprint
A proper sauna, with its own vestibule.
~10 m²sauna & vestibule
The NOOK Sauna · Wellness
A garden sauna, warm in under forty minutes
Heat, then cold, then quiet — thirty steps from your back door on any winter night. Warm to 80°C in thirty to forty minutes.
An outdoor garden sauna, warm in under forty minutes.
Heat, then cold, then quiet — in a purpose-built ~10 m² sauna
02
Heat
An app-controlled HUUM stove, ready before you've changed.
80°Cin 30–40 minutes
03
Installation
No plumbing — the fastest NOOK to install.
Under 2 hoursfrom the configurator
Heat, cold, quiet
Heat, then cold, then quiet — at the end of your own garden
The spa costs a membership and a drive, and the wellness habit you want — the sauna, the cold plunge, the ten quiet minutes after — has nowhere to live at home. A NOOK Sauna keeps the whole sequence thirty steps from the back door, so an ordinary Tuesday becomes a reset rather than a plan for the weekend.
A Tuesday made into a reset
Heat, then cold, then quiet — thirty steps from the back door.
The whole sequence — the sauna, the cold plunge, the ten quiet minutes after — thirty steps from the house, any night of the year.
Heat-up proof
Ready before you've changed
Trigger the HUUM stove from your phone on the walk down the garden. Scroll through the heat-up, minute by minute — the same hemlock interior, warming through the session.
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01 0 minCold start
Configure the SaunaA quiet hemlock room at garden temperature, benches ready, stove cold. The vestibule keeps the changing space separate.
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02 15 minApp-triggered, warming
Configure the SaunaYou tap the HUUM app from the house. The roughly 6 kW stove is already climbing before you have walked down the garden.
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03 30 min
Mid-heat
Configure the SaunaThe insulated shell holds the rising heat rather than leaking it, so the climb stays steady and even across the benches.
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04 30–40 min80°C, ready
Configure the SaunaAround 80°C and holding — ready before you have finished changing. Step in, and the sequence begins.
Inside, a proper sauna
Inside · hemlock & benches
A hemlock-lined interior with tiered benches, warm underfoot and soft to the touch — the surface of a proper sauna.
The HUUM stove · by app
You trigger the HUUM stove from your phone on the way home, so it comes up to heat on its own — no idling, no waiting in front of it.
Not a gimmick
A real sauna, not a barrel in the corner
A NOOK Sauna compared with a budget barrel or tent sauna.
| Criteria | NOOK Sauna | A budget barrel / tent sauna |
|---|---|---|
| Shell | Insulated, holds heat | Thin, leaks heat |
| Heat control | HUUM, app-controlled | Manual, guesswork |
| Changing space | Separate vestibule | None |
| Interior | Hemlock, tiered benches | Basic slats |
| Warranty | 3-year structural | Limited or none |
Reversible, not permanent
On screw piles, not a slab
With no plumbing to connect, the Sauna is the fastest NOOK to install — set on reversible screw piles and connected to power in under two hours. No concrete, no civil works, and it can be relocated or removed with no lasting mark on the garden.
Category
NOOK (helical piles)
Concrete slab
Foundation
Reversible helical screw piles
Poured concrete slab
Plumbing
None — an electrical connection only
On-site plumbing and drainage
Civil works
None — installed in under 2 hours
Excavation, formwork and days of curing
If needs change
Relocated or removed with no lasting mark
Permanent
Certification
Mobility & Demountability Certificate
N/A — fixed construction
A Mobility & Demountability Certificate comes with every building.
Three NOOKs for Wellness. One Is the Sauna.
Each module plays a different role in the garden's heat-and-cold sequence.
The sauna
NOOK Sauna
The sauna — heat, then cold, then quiet
- Area10 m² · integrated vestibule
- Capacity4–5 people comfortably
- HeaterHUUM 6 kW · app · 100°C
- InteriorCanadian hemlock
- InstallUnder 2 hours
NOOK Base
The recovery — treatment room or gym
- Area9.75 m² · 2.5 × 3.9 m
- Ideal for1–2 people
- Best usesOffice · studio · retreat
- InstallHalf-day · turnkey
- FoundationReversible helical piles
NOOK Doble
The suite — changing & wellness
- Area19.5 m² · 5.0 × 3.9 m
- Ideal forUp to 6 people
- Full ensuiteOptional · ready to use
- Fitted kitchenOptional · worktop + fittings
- InstallOne day · turnkey
From deposit to your first session, in weeks
8–12 weeks
from deposit to installed
vs. months of traditional building work
Under 2 hours
on-site install, no plumbing
the fastest NOOK to install
Minimal works
no concrete, no civil works
an electrical connection only
Fixed price
agreed before we manufacture
the price lives in the configurator only
More ways to use a NOOK
Related use cases
Garden gym
Train with no membership, no commute
9.75 m² of clear floor for strength, cardio or yoga, steps from the house. See the garden gym.
Your garden, working
A corner guests book by the night
A single, well-made let turns a garden corner into income. See your land, working.
Is the sauna for guests?
If the property is one you let, not one you sleep in
When the sauna goes at a guest house, a small hotel or a glamping site, everything changes: where it sits, how it is cleaned and how access is charged. That is covered in spa buildings for hotels.
Configure your garden sauna
Choose the finishes and see your one turnkey price — no hidden costs, no obligation.
9.75 M² + VESTIBULE
HUUM 6KW HEATER
INSTALL < 2H
NOOK Sauna
The sauna — heat, then cold, then quiet
A Nordic sauna with its own vestibule and a 6 kW HUUM heater by app, installed in under two hours.
9.75 M²
1–2 PEOPLE
RECOVERY
NOOK Base – 9.75 m²
The recovery — treatment room or gym
9.75 m² in one calm single space — the sauna's recovery pairing, as a treatment room or a gym.
19.5 M²
UP TO 6
CHANGING & WELLNESS
NOOK Doble – 19.5 m²
The suite — changing & wellness
19.5 m² for up to 6 — changing, a shower and a wellness zone, with bathroom and kitchen to order.
Questions About Garden Saunas
How long does a garden sauna take to heat up?
Between thirty and forty minutes. The HUUM stove is roughly 6 kW and app-controlled, so you trigger it from your phone and it reaches about 80°C in 30–40 minutes — ready before you have finished changing. The insulated shell and hemlock interior hold that heat steadily through a session.
What does a garden sauna cost to run?
Running cost depends on how often and how long you use it, your electricity tariff and the outside temperature, so rather than quote a per-session figure we cannot stand behind, we talk it through honestly during the consultation. The app-controlled stove helps by heating only when you schedule it, rather than idling.
Do I need planning permission for a garden sauna?
In many areas a garden building of this size sits within permitted development, and because a NOOK rests on reversible screw piles rather than a concrete slab it is often treated differently from a permanent extension. Rules vary by council, so we provide the full technical documentation and you confirm the position with your local authority. Treat this as guidance, not legal advice.
Is it a real sauna or a gimmick?
It is a proper, purpose-built sauna: a hemlock interior with tiered benches, a separate vestibule to change and cool down in, an app-controlled HUUM stove and cross-ventilation for a steady, breathable heat. That is a different thing from a budget barrel or tent sauna with a basic heater and no insulated shell.
How long does it take to install?
Under two hours on site. Because a sauna has no plumbing to connect, it installs faster than the Base or Doble — craned onto its reversible screw piles and connected to power the same day, with no concrete and no civil works.
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Decide with confidence
Everything you need to know about a garden sauna, in one PDF
Specification, heat-up, materials, process and price. Sent to your inbox instantly.
- The spec: HUUM stove, hemlock interior and vestibule
- The minute-by-minute heat-up, to 80°C in 30–40 min
- Materials: insulated shell, roof and finishes
- Installed in under 2 hours, no plumbing
- 8-to-12-week timeline, step by step
- Fixed price and exactly what it covers
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Garden sauna · heat, then cold, then quiet