Chiller Comparison (0.5 HP, 1 HP, 1.5 HP MAX)Updated a day ago

A simple guide to help you choose the right chiller for your cold plunge setup.

Choosing the right chiller is one of the most important steps in getting the cold plunge experience you want. Each chiller has different power levels, cooling speeds, and best-use cases. This guide compares the 0.5 HP, 1 HP, and 1.5 HP MAX chillers so you can pick the one that fits your tub, your space, and your preferred plunge temperature.

This article is based on performance ranges, typical cooling power differences, and the general rule that larger tubs require stronger chillers for faster and more stable cooling.

Quick Comparison

Note: Actual cooling speed depends on water volume, room temperature, and insulation.

0.5 HP Advanced Chiller

The 0.5 HP Chiller is the simplest and lightest option. It is best for users who want reliable cooling for smaller tubs, low water volume setups, or milder temperatures.

Key Highlights

• Best for customers who want basic cooling

• Works well with smaller or more compact tubs

• Uses less energy compared to larger models

• Easy to place, move, and set up

When to Choose the 0.5 HP Chiller

Choose this model if you want a cold plunge for light to moderate use, or if you have a smaller tub setup where large cooling power is not required.

1 HP Pro Chiller

The 1 HP Chiller is the most balanced option. It delivers strong and consistent cooling for medium and large tubs, and it is the most popular choice for homes.

Key Highlights

• Provides faster cooling

• Works well for daily plunging

• Ideal for tubs with moderate to high water volume

• Reliable for keeping water cold even in warmer weather

• Great balance of power, performance, and efficiency

When to Choose the 1 HP Chiller

Choose this model if you want strong and consistent cooling without going to the highest power level. This is a good match for larger tubs and regular daily plunging.

1.5 HP Pro MAX Chiller

The 1.5 HP Pro MAX Chiller is the most powerful option. It cools water the fastest, maintains stable temperatures, and performs well even in hot climates or when used with large plunge tubs.

Key Highlights

• Strongest cooling performance

• Designed for large water volume

• Best option for fast cooldown times

• Ideal for warm rooms, garages, or outdoor setups

• Provides the most stable cold temperatures at all times

When to Choose the 1.5 HP Pro MAX Chiller

Choose this model if you want the fastest cooling, have a large tub, or live in a hot region where other chillers may struggle to maintain low temperatures.

Which Chiller Should You Choose

Here is a simple way to decide:

Choose the 0.5 HP if

• You have a small tub

• You want an entry-level cooling experience

• You prefer lower energy use

• You do not need fast cooling

Choose the 1 HP if

• You want strong and reliable cooling

• You use your plunge daily

• You have a medium or large tub

• You want a mix of speed, power, and efficiency

Choose the 1.5 HP Pro MAX if

• You want the fastest cooling possible

• You have a large tub or high water volume

• You live in a warm climate

• You want maximum performance for the coldest plunges

Choosing the right chiller comes down to your tub size, how often you plunge, and how cold you want the water to be.
Use this comparison to match the chiller power to the setup you have in mind. A properly sized chiller will give you faster cooling, better temperature stability, and a smoother cold plunge experience.