Medical Saunas Frozen 4 Cold Plunge with Chiller
- 33-37°F minimum
- 81-100 gal
- Cold only
- Indoor or outdoor
A rigid cold plunge with a built-in 2 kW chiller, rated to 37°F, that runs on a household outlet.
$9,049
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Usability
4.6 out of 10- Chiller: model CT-006 nameplate, 2 kW cooling, 1 kW input, R410A
- Insulation: "FoamSeal" insulation on the inner and outer tank, thickness not stated
- Searched: Intertek UL CSA CPSC Health Canada
Better on verificationPlunge Original cold plunge tub with Pro ChillerIntertek lists Plunge's maker. $8,490Scores 4.0
- Kit: Frozen 5 with accessories kit $10,049.00 at medicalsaunas.com
- Kit: Frozen 6 with accessories kit, essential oil infuser and steam generator $11,049.00 at medicalsaunas.com
Strengths
- Fits users up to six and a half feet
- Plugs into a standard household outlet
- Chiller built into the plunge tub
- Insulated cover and drain valve included
Drawbacks
- One-year warranty on the chiller
- Labour not covered by the warranty
- Cold only: no hot mode
- No ozone stage
- Store pages make wellness claims we do not assess
A long chilled tub for tall users, but the chiller warranty is short
Specs
- TypeRigid
- HeaterNot applicable
- FormTub
- PlacementIndoor or outdoor
- SeatsNot applicable
- Max TemperatureNot applicable
- Min Temperature33-37°F
- Capacity (Gallons)81-100 gal
- ChillerHP not published
- HeatsCold only
- Water CareFilter, UV-C
- Power Supply120V plug-in (15A)
- EMF ClaimedNot applicable
- EMF MeasuredNot applicable
- CertificationsNone verifiable
- Warranty1 Year
Not checked: Which features the store's comparison table ticks (the ticks are images)
At a glance
- Weighs 1,461 lb filled
- Wooden bench beside the tub
- Water lasts up to six months
The company behind the store is Medical Breakthrough, LLC, of Santa Clarita, California, which calls Medical Saunas one of its divisions.
- Medical Saunas sells saunas, from a one-person outdoor cabin to a four-person outdoor hybrid sauna, and three chilled cold plunge tubs on its own US store at medicalsaunas.com.
- A few online fitness and wellness dealers also resell its saunas and plunges.
The Frozen 4 is a rigid cold plunge with its chiller and pump built into one unit; the manual calls the tank stainless steel, but the store says only the Frozen 7 to 9 use a stainless tub, so the tub material is not credited, sized for users up to 6 ft 6 in and 350 lb.
It holds 100 gallons in a 80 by 34 by 35 inch tub that weighs about 535 lb dry and 1,461 lb filled. The store rates it to 37°F, adjustable up to room temperature, and the manual rates the chiller at 2 kW of cooling. It filters to 20 micron with a UV sanitizer and runs on a standard 120 V 15 A outlet.
An insulated cover and a drain valve come with it; the store presents the cover as a free promotion. The Frozen 5 is the same tub with the accessories kit at $10,049.00. The Frozen 6 is the same tub with the accessories kit, essential oil infuser and steam generator at $11,049.00.
Every listing shows a struck retail price near twice this one and a countdown that resets, the store's permanent countdown pricing.
Questions answered from our data
How much does a cold plunge cost?The 62 cold plunges we list run from $549 to $28,880, with a median of $7,495.
How cold does a cold plunge get?32 of the 62 cold plunges we list are rated to hold water at 37°F or colder, as their makers rate them.
How many gallons is a cold plunge?30 of the 62 cold plunges we list hold more than 100 gallons, as their makers rate them.
Does a cold plunge need a dedicated circuit?Seven of the 62 cold plunges we list ask for a dedicated circuit of 20 A or more, or a 240 V supply, as their makers state it.
