Outdoor saunas
Outdoor saunas for gardens, terraces and hotels
An outdoor sauna solves a common problem: it takes up no space inside your home or wellness centre. These are freestanding sauna cabins made from weather-treated timber, with reinforced insulation and a waterproof roof, ready to install on a level base without any building work.
At Sunmarket Wellness, you will find barrel and cube designs, as well as panoramic sauna cabins with glass fronts, accommodating 2 to 6 people and available with a traditional sauna heater or in a hybrid version. Perfect for detached homes, country houses, hotels and spas with garden areas.
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Why choose an outdoor sauna
As well as freeing up indoor space, an outdoor sauna offers something an indoor sauna cannot: genuine hot-and-cold contrast therapy. Stepping outdoors between sauna rounds enhances the effects of each session and creates a complete sauna experience. For tourist accommodation and rural holiday homes, it is also one of the amenities that helps a property stand out from the competition.
Outdoor sauna designs
- Barrel sauna: the cylindrical shape reduces the volume of air that needs to be heated, allowing it to reach the desired temperature faster while using less energy. It is the most recognisable design and provides the most effective rainwater run-off.
- Cube sauna: clean lines and maximum use of the interior space. It is particularly well suited to contemporary gardens.
- Panoramic sauna cabin: features a large glass front to make the most of the surrounding views. The most popular option for hotels and homes in natural settings.
- With an integrated terrace: includes a covered porch that provides a relaxation area between sauna rounds.
Installation: what you need to prepare
- Level base: a concrete slab, adjustable pedestals or sturdy decking. The base must be level and allow water to drain away.
- Outdoor electrical supply: it must be protected and rated for the sauna heater’s power requirements. Larger sauna cabins may require a dedicated circuit or three-phase power supply.
- Clearance around the sauna: leave sufficient space around the structure to ventilate the timber and provide access for maintenance.
- Positioning: if the model has a glass front, position it to face the best view while protecting it from the prevailing wind.
- Local regulations: some local authorities regulate ancillary structures installed on private property, so it is advisable to check the requirements beforehand.
No building work required. The sauna cabins are delivered in modules and assembled on site. They do not require deep foundations or, in most cases, planning permission for major building work.
Outdoor sauna maintenance
The exterior timber requires a protective treatment every 1–2 years, depending on its exposure to sunlight and rain. Inside, simply clean the benches and floor with water and mild soap, avoiding harsh products that could penetrate the timber. Inspect the sauna heater and replace the sauna stones when they become cracked. In areas affected by frost, drain any water tanks before winter.
Frequently asked questions
Can it withstand rain and frost?
Yes, provided that it is a purpose-built outdoor model. Outdoor saunas feature treated timber, a waterproof roof and enhanced insulation. An indoor sauna cabin installed outdoors will deteriorate very quickly.
How long does it take to heat up?
Between 30 and 45 minutes. Barrel saunas are usually slightly faster because they contain a smaller volume of air.
Do I need planning permission?
As it is a removable installation without foundations, it does not usually require planning permission for major building work. However, each local authority has its own regulations regarding ancillary structures, so it is advisable to check beforehand.
Can I use it in winter?
Winter is when an outdoor sauna is most enjoyable. The contrast between the 80–90°C interior and the cold outdoor air is precisely the effect sought in the Nordic sauna tradition.
Can I order it with a wood-burning sauna heater?
Yes, a wood-burning sauna heater is a viable option outdoors because a flue can be installed. Contact us to check availability for the model you are interested in.