In this guide
The first-session plan
12°C to 15°C. Thirty seconds. No bargaining.
Pre-chill the Olsek Ice Shower overnight, choose a starting point from 12°C to 15°C and stand directly beneath the Halo. Press start, keep breathing and own the full 30 seconds. Then top up the reservoir so session two is waiting for you.
01
What should you do the night before your first ice shower?
Fill the 15 L reservoir, choose 12°C to 15°C and give the Cooling Core its first night to pull the water down to temperature.
The first session starts before the morning alarm. Connect the supplied 1.5 m hose, mount the Halo inside the shower, fill the reservoir and set the controller. Olsek does not alter your home's plumbing and the bathroom-side hardware runs at 24V, so the setup belongs beside the shower you already use.
Let the first fill chill overnight. Leave the system switched on and it can cycle as needed to hold the selected temperature. The complete fill, chill, pump and drain path is covered in how an ice shower works. If you are still choosing a system, use the complete home buyer's guide before planning session one.
Your night-before checklist
- Mount the Halo where the cold will cover you from overhead.
- Fill the integrated reservoir to its 15 L capacity.
- Choose a first setting between 12°C and 15°C.
- Leave the first fill to chill overnight.
- Put your towel where you can grab it without thinking.


