Can I Install any Infrared Sauna Outdoors?
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Short answer:
Indoor infrared saunas are not suitable for outdoor installation. Only purpose-built outdoor infrared saunas are designed to withstand exposure to the elements and changing weather conditions. Within the Alpine range, this includes our Infrared Barrel Sauna and the Niva Outdoor Infrared Sauna models.
For this reason, all indoor infrared sauna models should be installed inside a fully enclosed, weather-protected space and should not be placed outdoors, even under a gazebo or roof structure.
Why Indoor Infrared Saunas Should Never Be Installed Outdoors
All Alpine Indoor Infrared Saunas in New Zealand are built for controlled indoor environments. Think dry rooms, stable temperatures, and protection from the weather. These saunas are designed to work well inside your home. Once you place one outside, a few problems will show up pretty quickly.
Moisture is an issue. Rain and humidity can seep into the wood and internal components. That can lead to warping, mould, or damage to the electrical system. Temperature swings are another concern. Outdoor conditions can shift a lot throughout the day. That kind of fluctuation can affect how the sauna performs and how long it lasts. Indoor units aren’t sealed or insulated for that level of exposure as they are meant to only be installed inside.
What Makes an Outdoor Infrared Sauna Different?
Outdoor Infrared Saunas are designed for a completely different purpose. Models like the Infrared Barrel sauna or the Niva Outdoor Infrared Sauna can withstand the elements while still delivering the same relaxing infrared heat. Outdoor infrared saunas are built a bit differently to suit their environment. They use materials that handle moisture and weather changes with ease, along with added insulation to keep the temperature steady. They’re also sealed to protect internal components and designed with more durable exterior finishes.
So, outdoor models make it possible to enjoy that same Infrared Sauna experience outside. At Alpine Spas, our Outdoor Infrared Saunas are specifically designed for the harsh climate in New Zealand. That means they’re made to handle sun, rain, and everything in between.
Where You Can Install an Outdoor Sauna
Just like any other Outdoor Sauna, an Infrared Outdoor Sauna gives you a lot of flexibility when it comes to placement. Many people install theirs in the backyard, creating a private space to unwind. Others prefer a deck or patio setup that feels closer to the home. You can also place one near a pool area, which makes it easy to go from a swim straight into a sauna session.
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With the right setup, it can feel like a natural extension of your home.
Things to Think About Before Installing an Outdoor Infrared Sauna
Before you install an Outdoor Infrared Sauna, it's helpful to plan a few details:
Think about privacy and access. A quiet corner usually works best.
Most infrared saunas need a reliable electrical connection, so it’s worth checking what’s available in your outdoor area.
You’ll also want to consider the base. A solid, level surface like concrete, pavers, or a reinforced deck helps with stability and long-term durability.
Even though infrared saunas don’t produce steam like traditional ones, airflow still plays a role in comfort.
Taking a little time to plan upfront makes the whole experience smoother once everything is set up.
Thinking About Buying an Outdoor Sauna?
If you’re planning to create an outdoor space for relaxation, an Infrared Sauna can be a great addition when you choose the right model. At Alpine Spas, we offer dedicated Outdoor Infrared Saunas designed for real conditions in . They’re built to last and made to perform, so you can enjoy your setup without second-guessing it.
If you’d like personalised advice, our team is always happy to help you compare models and find the perfect fit for your home.
Also check out our Ultimate Infrared Sauna Buyers Guide: Benefits, Costs, Installation & More in New Zealand or visit our Alpine Recommender™:


Written by our Sauna and Ice Bath Expert - Matt Carter
Matt Carter is one of our Alpine Spas branch managers, with deep expertise across indoor, outdoor, infrared, and traditional saunas. Having helped thousands of families find their perfect sauna, Matt brings hands-on experience and genuine industry knowledge to every conversation. When it comes to finding the right fit for your home and lifestyle, Matt knows what works and what matters.
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