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EcoPlus Commercial 1 HP Chiller Review: 10,050 BTU for $1,099

The EcoPlus Commercial Grade 1 HP is the most affordable way to put serious cooling power behind a large cold plunge. With 10,050 BTU/hr it cools 150 to 250 gallon volumes down to 37°F (2.8°C) with margin to spare. It is loud and oversized for a typical home tub, but for big setups it is hard to beat on price.

DR
Reviewed by
Dr. Renée Halvorsen, PhD
Exercise physiologist. 11 years researching cold-water immersion at NTNU. Author of The Cold Protocol (Penguin, 2024).
Verified Expert38 articles
June 29, 2026  ·  9 min read
Our rating
8.5
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Score 8.5/10$1,099Updated June 2026
Our Verdict

For a large setup, a stock tank over 150 gallons, a two-person tub, or a commercial wellness space, this is the most affordable route to serious BTU output. The 30 ft remote controller is a practical differentiator for outdoor installs. It is louder than the competition, so position it away from living spaces. For a typical home setup the 1/2 HP Active Aqua is a better fit.

Full specifications

EcoPlus Commercial Grade Chiller 1 HP for cold plunge
Price
$1,099
Brand
EcoPlus
Model
Commercial Grade 1 HP
HP
1 HP
Cooling output
10,050 BTU/hr
Min temperature
37°F (2.8°C)
Recommended volume
150 to 250 gallons
Noise
62 to 65 dB
Compressor
Japanese (hydroponic-proven)
Housing
Powder-coated galvanized steel
Controller
Remote, 30 ft cord
Best for
Large or commercial setups

Cooling performance

The headline number is 10,050 BTU/hr, and it is the whole reason to look at this unit. That is roughly double the output of a typical 1/2 HP chiller, and it changes what you can cool. Where a half-horsepower unit is happiest on an 80 to 150 gallon single-person tub, the EcoPlus 1 HP is rated for 150 to 250 gallons. It pulls heat out of a large volume fast enough that a big stock tank or a two-person tub holds its target temperature through back-to-back sessions.

The minimum temperature is 37°F (2.8°C). In practice you will almost never run it that cold. Most cold plunge protocols sit in the 45 to 55°F (7 to 13°C) range, and the value of all that BTU output is not how low it goes but how quickly and how steadily it gets there on a large body of water. On a 250 gallon volume the unit still has headroom, which means short recovery time after each plunge and stable temperatures even on a warm day.

Put a different way: the 1 HP is not faster or colder than a 1/2 HP on a small tub in any way you would feel. Its advantage only shows up when the volume is large. If you have read our best cold plunge chiller guide and concluded you need more than half a horsepower, this is where that decision pays off.

Build quality and design

EcoPlus comes out of the hydroponics world, where chillers run continuously for years in humid grow rooms, and that heritage shows. The compressor is Japanese-made with a long track record across the industry, which is the single component most likely to fail on a cheap chiller. Pairing a proven compressor with cold plunge duty is reassuring, because a plunge chiller cycles hard and you do not want to gamble on the part that does the work.

The housing is powder-coated galvanized steel, and it is genuinely outdoor-durable rather than outdoor-rated on paper only. Galvanized steel resists corrosion, and the powder coat adds a second layer against rust and weathering. For a unit that will likely live outside next to a stock tank, that matters. The trade-off is weight. This is a heavy unit, and it is not easy to move once positioned, so plan its home before you fill the tub.

Noise and placement

This is the honest weakness. At 62 to 65 dB the EcoPlus 1 HP is noticeably louder than the Penguin or the smaller Active Aqua units. That is roughly the level of normal conversation or a window air conditioner, and it cycles on and off through the day rather than running as constant background hum. Indoors, in or near a living space, you would notice it.

The fix is placement, and it is an easy one for the kind of buyer this unit is aimed at. Position it away from living spaces, bedroom windows, and any shared wall with a neighbor. The 30 ft remote temperature controller helps here: you can put the noisy unit where it makes sense acoustically and still read and set the temperature from a convenient spot. For an outdoor install next to a large tank, the noise is rarely a problem at all.

Setup and what else you need

Like any standalone chiller, the EcoPlus does not move water by itself. To run it you need a pump rated for the chiller flow, tubing or hose, and barbed fittings to connect the chiller inlet and outlet to your tub. Budget for those parts on top of the $1,099 price. Match the pump flow to the chiller and to your run length, and keep the tubing as short and well insulated as you can so you are not losing cold to the air between the tub and the unit.

On the electrical side, run it on a dedicated grounded circuit and confirm the amperage draw against your outlet before the first run. The 30 ft remote temperature controller is a real convenience for outdoor setups, letting you mount the unit where airflow and noise work best while keeping the controls within reach. If you want to keep the water clean over a large volume, our water care guide covers sanitation for plunges this size, and beginners deciding how cold to run should read our cold plunge temperature guide.

Category scores

9.5/10
Cooling power
10,050 BTU/hr; handles 250 gal with margin
9.0/10
Build quality
Galvanized steel, Japanese compressor
6.5/10
Noise
Loud at 62 to 65 dB; place away from living space
8.5/10
Value
Cheapest path to serious BTU output
8.5/10
Overall

Pros and cons

Pros
  • +10,050 BTU/hr handles large stock tanks, XL tubs, and commercial setups
  • +Japanese compressor with proven reliability across the hydroponic industry
  • +Remote temperature controller with 30 ft cord useful for outdoor setups
  • +Powder-coated galvanized steel housing genuinely outdoor-durable
Cons
  • Noticeably louder than the Penguin or Active Aqua units at 62 to 65 dB
  • Oversized for most home cold plunges under 150 gallons
  • Heavy unit, not easy to move once positioned

Price and value vs alternatives

Same family, half the power. The right pick for a single-person home plunge of 80 to 150 gallons. Quieter and lighter.
~$650
The default home choice. Quieter, lighter, and ample for a typical 80 to 150 gallon tub. Better fit for most readers.
~$849
EcoPlus 1 HP (this unit)
Most affordable route to 10,050 BTU/hr. Earns its price only on volumes of 150 to 250 gallons or commercial use.
$1,099

At $1,099 the EcoPlus 1 HP is the cheapest path to 10,050 BTU/hr that we would trust, which is what makes it the value pick for large and commercial setups. The catch is that all that power is wasted on a small tub. If your volume is under 150 gallons, spend less and run quieter with the EcoPlus 1/2 HP or the Active Aqua 1/2 HP. The 1 HP only justifies its price when the gallons demand it.

Who should buy it, and who should skip it

Buy the EcoPlus Commercial 1 HP if you are cooling a large volume: a stock tank over 150 gallons, a two-person tub, or a commercial wellness space running multiple sessions a day. That is the situation where 10,050 BTU/hr, the rugged steel housing, and the proven Japanese compressor all earn their keep, and where the $1,099 price is the most affordable way to get them. The 30 ft remote controller makes it especially well suited to outdoor installs.

Skip it if you have a normal single-person home plunge under 150 gallons, if the unit will sit near a living space where 62 to 65 dB would bother you, or if you want something light enough to reposition easily. In those cases a 1/2 HP unit gives you everything you will actually feel for less money and less noise.

Frequently asked questions

Is the EcoPlus 1 HP chiller too big for a home cold plunge?+
For most home cold plunges under 150 gallons, yes. The EcoPlus 1 HP delivers 10,050 BTU/hr, which is sized for 150 to 250 gallon volumes such as large stock tanks, two-person tubs, and commercial wellness setups. On a standard single-person tub of 80 to 120 gallons it will hit your target temperature quickly, but you are paying for and running far more cooling capacity than you need. A 1/2 HP unit like the Active Aqua is a better match for a typical home setup.
What temperature can the EcoPlus 1 HP chiller reach?+
The EcoPlus 1 HP cools water down to 37 degrees Fahrenheit (2.8 degrees Celsius). That floor is well below what almost any cold plunge protocol calls for, since most users plunge in the 45 to 55 degree Fahrenheit (7 to 13 degree Celsius) range. With 10,050 BTU/hr behind it, the unit reaches and holds those temperatures with margin to spare even on a large 250 gallon volume.
How loud is the EcoPlus Commercial chiller?+
The EcoPlus 1 HP runs at 62 to 65 dB, which is noticeably louder than purpose-built plunge chillers like the Penguin or smaller Active Aqua units. That is roughly the volume of normal conversation or a window air conditioner, but it cycles on and off through the day. Position it away from living spaces, bedroom windows, or a neighbor wall, and the noise becomes a non-issue. For an outdoor install this is rarely a problem.
What else do I need to run the EcoPlus 1 HP chiller?+
The chiller does not move water on its own. You need a submersible or inline pump rated for the chiller flow, plus tubing or hose and barbed fittings to connect the chiller inlet and outlet to your tub. Match the pump flow to the chiller and your run length, and keep the tubing short and insulated where possible. Electrically, run it on a dedicated grounded circuit and confirm the amperage draw against your outlet before first use.
Is the EcoPlus chiller built for outdoor use?+
Yes. The powder-coated galvanized steel housing is genuinely outdoor-durable, and the 30 ft remote temperature controller lets you mount the unit outside while monitoring and adjusting from a more convenient spot. As with any chiller, give it clear airflow around the condenser, keep it out of standing water, and shelter it from direct heavy rain and winter freeze where you can.
EcoPlus 1 HP or 1/2 HP: which should I buy?+
Buy the 1 HP only if your volume is large: a stock tank over 150 gallons, a two-person tub, or a commercial space cooling multiple sessions per day. For a typical single-person home plunge of 80 to 150 gallons, the EcoPlus 1/2 HP or the Active Aqua 1/2 HP is the better fit. They are cheaper, quieter, lighter, and still reach therapeutic temperatures with margin. The 1 HP earns its price only when the gallons demand it.
DR
Reviewed by
Dr. Renée Halvorsen, PhD
Exercise physiologist. 11 years researching cold-water immersion at NTNU. Author of The Cold Protocol (Penguin, 2024).
Verified Expert38 articles
How we tested

142 days in real cold

Methodology →

Every unit ran in a controlled 8°C ambient room and an unheated garage in Trondheim. We logged temperature stability, recovery rate, noise, and energy draw on calibrated probes.

142
days tested
11
units measured
7°C
avg plunge temp
38
data points