Dynamic Premier 0.8 HP Cooling & Heating Chiller System with WiFi
Estimated Delivery: 8 - 15 Business Days (In-Stock Ground Shipping)
Orders placed after 2:00 PM Central Time (CT), or on weekends or holidays, generally begin processing on the next business day.
Choose options
Dynamic Cold Therapy • DCT-SV-08DO3
DCT Premier Edition 0.8 HP Cooling and Heating System with Wi-Fi App
The DCT-SV-08DO3 is the 0.8 HP unit in the Dynamic Cold Therapy Premier Edition range — a combined chiller and heater with a range of 37°F to 85°F, rated for tubs up to 135 gallons, with Wi-Fi app control and built-in ozone, filtration and a strainer. It uses 3/4-inch inlet and outlet connections and ships by ground carrier at 85 lb.
Wellari Expert Take
Why Consider the DCT-SV-08DO3?
The chiller is the part of a cold plunge setup that decides whether you actually use it. Ice works for a while and then becomes a chore; a chiller makes the plunge available at a set temperature every day without any daily effort at all. Dynamic Cold Therapy's Premier Edition units go down to 37°F, which is colder than most people ever want, and they also heat — so the same tub can be run warm out of season.
What separates this from a bare chiller is the water-care hardware. Ozone, a filter and a strainer are built in, which is what keeps plunge water clear between changes. Buying a chiller without those means adding them later or changing water far more often.
The 0.8 HP is the smaller of the two Premier units. Choose it for the smaller tubs in the range; the 1.0 HP has more capacity for larger volumes or for holding temperature in a warmer room.
Best For
- Owners of a Dynamic Cold Therapy tub bought without a cooling system — these tubs list the chiller as optional and are supplied tub-only.
- Anyone tired of buying and hauling ice to keep a plunge usable.
- Smaller tub volumes, or installations where the 1.0 HP unit is more capacity than needed.
- Buyers who want the tub to double as a warm soak out of season — this unit heats as well as cools.
- Setups where water clarity matters and you would rather not bolt on separate ozone and filtration.
DCT-SV-08DO3 Features & Buying Details
Cooling, Heating & Water Care
- Power: 0.8 HP
- Function: Cooling and heating
- Temperature range: 37°F to 85°F
- Tub capacity: Up to 135 gallons
- Cooling rate: Approx. 1–3°F every 30 minutes, depending on ambient temperature and water volume
- Use environment: Indoor and covered outdoor rated
- Control: Wi-Fi mobile app (Tuya Smart)
- Water care: Built-in ozone, filter and strainer
- Connections: 3/4-inch inlet and outlet
Why 37°F matters as a specification. It is the floor, not the setting. Most people plunge somewhere between the mid-40s and mid-50s, so a unit that reaches 37°F has headroom — it will hold your chosen temperature comfortably rather than running flat out at its limit. A chiller working at the edge of its range runs longer and holds temperature less steadily.
The heating function is genuinely useful. The same unit can bring the tub up rather than down, which means the tub is not dead weight in winter or for anyone in the household who wants a warm soak instead.
Ozone, filter and strainer are built in. The strainer catches debris, the filter handles finer particulate, and ozone addresses what neither can. Together they extend how long water stays clear between changes — the practical difference between a plunge you maintain occasionally and one you drain constantly.
Electrical & Installation — What the Manufacturer Documents
One caveat on the voltage figure. The manufacturer's published documentation states 120V for this range in one place and 110V in another. Both describe the same ordinary household circuit. Ask us and we will confirm the exact figure, and the amperage draw, with Dynamic Cold Therapy in writing before you order. Do not run the unit on an extension cord.
What is documented: the unit is rated for residential use and connects to the tub with 3/4-inch inlet and outlet fittings. Plan for it to sit beside the tub — at 13″ × 20″ × 18″ it needs a level, ventilated position with clearance for airflow, and a run short enough for the supplied 3-foot hoses unless you extend them.
On running costs: we do not publish an operating-cost estimate for cold plunge chillers. Duty cycle depends on your target temperature, ambient conditions, tub insulation and how often the tub is used and opened — none of which the manufacturer specifies. Any figure we quoted would be a guess dressed as a specification.
What Is Included in the Box
- Hoses: In and out 3 ft hoses (2 hoses)
- Direct connect fitting
- Filters: 3
The supplied hoses are 3 feet each. That is enough for a chiller sitting immediately beside the tub and not much more — if the unit needs to sit further away, behind a screen or around a corner, plan for longer hoses. Wellari also carries neoprene hose covers, which matter more than they sound: uninsulated hose between a chiller and a tub is a direct heat gain.
Three filters are supplied, which covers the first several changes. Replacement filters are sold in four-packs.
Size, Weight & Delivery
- Unit dimensions: 13″ W × 20″ D × 18″ H
- Unit weight: 62 lb
- Colour: White
- Shipping dimensions: 16″ W × 29″ D × 21″ H
- Shipping weight: 85 lb
- Cartons: 1
- Delivery: UPS / FedEx Ground
- Country of manufacture: China
This ships by ground carrier, not freight. At 85 lb in a single carton it arrives like a large parcel rather than on a pallet — a meaningful practical difference from the tubs, two of which require curbside LTL freight delivery.
At 62 lb the unit is movable by two people, so the installed position is not permanent in the way a filled tub is.
Warranty & Manufacturer Information
- Manufacturer warranty: 1 year, plus lifetime product support
- Brand: Dynamic Cold Therapy
- Model: Premier Edition, DCT-SV-08DO3
- Country of manufacture: China
- Designated use: Residential
Note the warranty term. Dynamic Cold Therapy provides one year on this unit — shorter than the five-year term on the Golden Designs sauna range, and worth factoring into the decision on a piece of equipment with a compressor in it.
Warranty terms, coverage and claim procedures are set by the manufacturer and may vary by component. Review the manufacturer's current warranty documentation for the terms that apply to your unit, and keep your purchase documentation for future support reference.
Safety & Usage
Usage: Intended for residential use with a compatible cold plunge tub. Install on a level, stable, ventilated surface and operate according to the manufacturer's instructions. Follow the manufacturer's water-care and filter-replacement guidance.
Cold water immersion: Cold plunging places real stress on the cardiovascular system. Enter and exit deliberately, never plunge alone if you are new to it, and do not stay in longer than you are comfortable with. Leave the water immediately if you feel dizzy, disoriented, numb or unwell.
Medical disclaimer: This product is not a medical device and is not intended to diagnose, treat, cure or prevent any disease. Consult a qualified healthcare professional before using cold water immersion if you have a heart condition, high or low blood pressure, circulatory problems, a respiratory condition, are pregnant, use an implanted medical device, or have any question about whether cold immersion is appropriate for you.
Verified Specifications
| Brand | Dynamic Cold Therapy |
|---|---|
| Model / Manufacturer Item | Premier Edition — DCT-SV-08DO3 |
| UPC | 850061851314 |
| Product Type | Cold plunge cooling and heating system |
| Power | 0.8 HP |
| Function | Cooling and heating |
| Temperature Range | 37°F to 85°F |
| Tub Capacity | Up to 135 gallons |
| Cooling Rate | Approx. 1–3°F every 30 minutes |
| Use Environment | Indoor and covered outdoor rated |
| Control | Wi-Fi mobile app (Tuya Smart) |
| Water Care | Built-in ozone, filter and strainer |
| Connections | 3/4″ inlet and outlet |
| Electrical | Standard household outlet, GFCI built in (manufacturer states 110V/120V — confirm before install) |
| Colour | White |
| Unit Dimensions | 13″ W × 20″ D × 18″ H |
| Unit Weight | 62 lb |
| Included | 2 × 3 ft in/out hoses, direct connect, 3 filters |
| Shipping Dimensions | 16″ W × 29″ D × 21″ H |
| Shipping Weight | 85 lb |
| Shipping Configuration | 1 carton, UPS / FedEx Ground |
| Warranty | 1 year (manufacturer), plus lifetime product support |
| Country of Manufacture | China |
| Designated Use | Residential |
Compare the Premier Edition Systems and the Tubs They Serve
Wellari carries both Premier Edition cooling and heating systems. They are identical in function, control, water care and connection size, and differ in capacity and physical size.
- 0.8 HP — DCT-SV-08DO3 — this page. Up to 135 gallons, 1–3°F every 30 min. 13″ × 20″ × 18″, 62 lb, ships at 85 lb.
- 1.0 HP — DCT-SV-10DO3. Up to 150 gallons, 1–3°F every 20 min. 14″ × 21″ × 21″, 78 lb, ships at 105 lb.
The tubs these connect to are sold without a cooling system. Dynamic Cold Therapy lists the cooling system as optional on every barrel tub, and Wellari supplies them tub-only:
- Oval Barrel 50″ — DCT-BO-50-PLPC-34. Plastic-lined with Pacific Cedar exterior, 46″ × 26″ × 28″ interior.
- 42″ Barrel, plastic-lined — DCT-B-042-PLPC-34. 38″ × 33″ interior.
- 42″ Barrel, 304 stainless — DCT-B-042-SSPC-34. Same footprint, stainless interior.
How to choose between the two systems. Both reach the same 37°F floor. The 1.0 HP gets there faster and holds it more easily in a larger tub or a warmer room; the 0.8 HP is the sensible choice for the smaller barrels in typical conditions. If your tub sits outdoors in a hot climate, size up.
Browse the full Wellari range or ask us which system suits your tub and location.
Common Questions
What electrical supply does this chiller need?
A standard North American household outlet, with GFCI protection built into the unit. The manufacturer's documentation states 120V in one place and 110V in another — both describe an ordinary household circuit rather than a dedicated high-voltage supply. Contact us if you want the exact figure and the amperage draw confirmed with Dynamic Cold Therapy in writing before you order. Do not use an extension cord.
How cold will it actually get the water?
Dynamic Cold Therapy states the system cools water down to a low of 37°F. That is the floor of its range, not a normal setting — most people plunge in the mid-40s to mid-50s, and a unit with headroom below your target holds temperature more steadily than one running at its limit.
Does it heat as well as cool?
Yes. It is specified as a cold and heat system with a range of 37°F to 85°F, so the same unit can bring the tub up as well as down.
How big a tub will it handle?
Up to 135 gallons. Above that, the 1.0 HP Premier system is rated to 150 gallons.
How quickly does it cool?
Approximately 1–3°F every 30 minutes, depending on ambient temperature and water volume. Pulling a full tub down from room temperature is an overnight job, which is why these units are left running rather than switched on per session.
Is a chiller included when I buy a Dynamic tub?
No. Dynamic Cold Therapy lists the cooling system as optional on the barrel tubs, and Wellari supplies them tub-only. The chiller is a separate purchase — which is exactly what this product is.
What does it cost to run?
We do not publish a figure. Running cost depends on your target temperature, ambient conditions, how well the tub is insulated and covered, and how often it is used — and the manufacturer publishes no duty-cycle data. Any number we gave you would be a guess presented as a specification, so we decline to give one.
How is it delivered?
By UPS / FedEx Ground in a single carton weighing 85 lb. Unlike the two 42-inch tubs, it does not require curbside LTL freight.
What warranty applies?
Dynamic Cold Therapy provides a 1 year manufacturer warranty on this unit. Coverage and claim procedures are set by the manufacturer and may vary by component.
Why Buy From Wellari Wellness
Manufacturer Specifications, Stated Plainly
Wellari Wellness publishes current manufacturer specifications — capacity, temperature range, connection sizes, dimensions, weights, delivery method and warranty term — so you can compare on the facts rather than on marketing language. Where the manufacturer's own documents disagree, as they do on the voltage figure, both figures are stated; where a specification is not published at all, it is left off the page. Products are sourced through verified manufacturer, distributor or supplier channels.
Not sure which system your tub needs?
Tell us your tub volume and where it sits, and we will confirm the right capacity — and get the exact electrical figure from the manufacturer in writing if you want it before you commit.
Why Buy from wellari wellness
Product classifications, regulatory status, and intended uses vary by product and manufacturer. Some products are marketed for general wellness use, while others may have manufacturer-designated medical, therapeutic, or regulated uses. Always review the manufacturer's product information, labeling, warnings, instructions, and intended use before purchase or use. Information provided on this website is for general informational purposes only and is not medical advice, diagnosis, or treatment.