Borealis™ Gen 5
Five generations in — built to last in the tropics. The Borealis is TUNDRA's all-in-one chiller and heater, refined across five generations of real-world use. It cools a plunge to 3°C and heats it to 42°C on demand, holds the temperature, and keeps the same water clean for weeks — engineered to survive Singapore's heat, rain and humidity.
What sets Gen 5 apart:
- Commercial-grade pump (up to 34 L/min, 170 W). Most budget chillers use a ~20 L/min, ~88 W pump that runs hot and wears out. Stronger, cooler-running flow means faster turnover, clearer water and more reliable temperature holding.
- Corrosion-built for outdoors. Black powder-coated stainless-steel housing, a stainless-steel heat exchanger, and IPX4 weatherproofing — so heat, humidity and rain don't rust it out.
- More robust piping — fewer stress points and leaks over years of daily use.
- Cools and heats (3–42°C) — run it as an ice bath or a warm soak.
- Two engines — Gen 5 Pro (1.0 HP) and Elite (2.0 HP) to match your tub and our climate.
- Fits any tub — TUNDRA plunge, custom pool or standard bathtub, via quick-connect hoses.
- Ozone + 20-micron filtration, Wi-Fi app control, transport wheels, plug-and-play on a standard socket, energy-saving mode.
- Backed locally — 1-year warranty and an in-house Singapore team. 4.95★ across 37 reviews.
Already own a tub? The Borealis turns it into a precision cold plunge. Not sure which HP is right for your setup? Read How to Choose an Ice Bath Chiller →
Borealis™
Key Benefits
Heating & Cooling
Advanced Ozone Sterilization
Efficient Filtration
Touch Panel with Wi-Fi and Smart App Control
Portable Design
Stainless-Steel Weatherproof Housing
01
Built for the tropics
Singapore’s heat, rain and humidity destroy cheap chillers. The Borealis has a black powder-coated stainless-steel housing, a stainless-steel heat exchanger for corrosion resistance, and IPX4 weatherproofing — built to live outdoors and keep running.
02
Commercial-grade pump
Gen 5 uses a commercial pump rated up to 34 L/min at 170 W.
Most budget chillers run a ~20 L/min, ~88 W pump or lower that runs hot or wears out. Stronger, cooler-running flow means faster turnover and steadier temperatures, year after year.
03
Cools and heats, 3–42°C
One unit, two uses. Chill a plunge down to 3°C, or heat it to 42°C for a warm soak — with precise temperature holding either way. Useful all year in our climate.
04
Clean water, less upkeep
Ozone sanitation plus 20-micron filtration keep the same water clear for weeks. Wi-Fi app control sets temperature and schedules from your phone, and an energy-saving mode keeps running costs down.
05
Refined over 5 generations
Every generation fixed what we learned from the last — more robust piping, fewer leak points, better reliability.
Backed by a 1-year warranty and an in-house Singapore team.
Precision Cooling & Heating (3°C – 42°C). One powerful engine for total thermal control.
Master Your Elements.
Return to Yourself
20%
reduction in muscle soreness
30%
faster recovery
300%
increase in norepinephrine
Product specification
3°C to 42°C (Cooling + Heating)
FAQ
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