Water Chillers: How to Choose
We’re an authorized dealer for Coldture and Dynamic Cold Therapy, and we back every order with Fast & Free Shipping, financing options, and a competitive Price-Match Guarantee (plus 60-day price-drop protection). When you’re choosing a water chiller for a cold plunge or contrast-therapy tub, focus on a few specs that actually change the experience: chiller power/capacity (HP or BTU/W tells you how quickly the unit can pull temps down or add heat), temperature range (typical 37–85/107°F), supported water volume (make sure the chiller matches your tub size—up to ~135 gal on Dynamic), and filtration & sanitation (pre-filters plus ozone help keep water clear). Also confirm electrical (most models run on standard 110–120V with built-in GFCI), footprint (so it fits beside your tub), and warranty. If you want a compact, app-controlled all-season unit, Coldture’s Pro is a great fit; if you prefer HP-rated options with clearly published max-volume support, Dynamic’s Standard and Premier Edition chillers are strong choices. And if you need help sizing your chiller to a specific tub, we’re here to advise.
Compare Top Water Chillers
| Model | Best For | Chiller Power / Capacity | Temp Range | Max Volume | Filtration / Sanitation | Electrical | Dimensions (L×W×H) | Price (+ availability) |
|---|---|---|---|---|---|---|---|---|
| Coldture Water Chiller Pro | Compact, all-season cooling & heating | Avg. 850W draw; 2,490W cool / 3,300W heat | 37–107°F (3–42°C) | — | 40-micron pre-filter; app control (IPX5; UL/CSA) | 110–120V, 60Hz | 24.2″ × 13.1″ × 18.9″ | $2,779 — 19 in stock; ships in 3–10 days |
| Dynamic Standard Water Chiller | Great value; black finish | 0.8 HP or 1.0 HP | 37–85°F | Up to 135 gal | Two-stage filtration (20-micron) + ozone | 120V with built-in GFCI | 14″ × 19″ × 22″ (0.8 HP) / 15″ × 21″ × 22″ (1.0 HP) | From $3,299 — 74 in stock; ships in 2–5 days |
| Dynamic Premier Edition Water Chiller | Faster cool rate; white finish | 0.8 HP or 1.0 HP (1–3°F drop per 30/20 min) | 37–85°F | Up to 135 gal | Two-stage filtration (20-micron) + ozone | 120V with built-in GFCI | 20″ × 13″ × 18″ (0.8 HP) / 21″ × 14″ × 21″ (1.0 HP) | From $3,499 — 48 in stock; ships in 2–5 days |
Buying tip: Match the chiller’s power/capacity to your tub’s water volume; if you’re above ~100 gallons or want faster cooldowns, choose higher HP or published faster cooling rates. For indoor installs, app control and built-in GFCI simplify setup.
Water Chillers FAQs
How do I size a water chiller to my tub?
Start with your water volume (gallons). Dynamic’s chillers publish support up to 135 gallons; if your tub is near that limit or you want faster cooldowns, choose the 1.0 HP variant or a unit with higher published capacity.
Do these require special electrical work?
No—these run on a standard 110–120V household outlet; Dynamic units include a built-in GFCI and Coldture lists a 110–120V, 60Hz power supply.
What filtration/sanitation do they include?
Dynamic units use a two-stage 20-micron filter plus automated ozone. Coldture includes continuous filtration with a 40-micron pre-filter and app-controlled operation.
Are these safe outdoors?
Yes—both brands are built for indoor/outdoor use. Coldture lists IPX5 water resistance and operation from 14°F to 120°F; Dynamic specifies indoor/outdoor placement.
What are typical lead times and shipping methods?
Coldture generally ships in 3–10 business days; Dynamic typically ships in 2–5 business days. Transit is usually via ground or LTL freight depending on the box size.
What warranty coverage is included?
Coldture lists a 2-year standard warranty (upgradeable to 4 years). Dynamic lists a 1-year warranty on its chillers.
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Last updated: November 3, 2025.