Sun Home Cold Plunge Horizontal Inflatable Cold Plunge with Chiller
- 32°F or below minimum
- 81-100 gal
- 0.8-1 HP chiller
- Heats to 100°F or more
SVT Score, Mid
An inflatable lie-down cold plunge with a 1 HP chiller that cools to 32°F and heats to 104°F, on a 120 V outlet.
$3,999
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Usability
4.7 out of 10Strengths
- Chiller cools and heats the water
- App controls set the schedule
- Ozone water care and a fine filter
- Testers call the tub very durable
- Full-length plunge tub to lie back in
Drawbacks
- Basic inflatable tub build
- One-year warranty on the cooling unit
- Hard to drain fully for cleaning
- Heavy cooling unit to carry
- Listed and tester water volumes disagree
A durable hot and cold inflatable plunge, but it holds less than listed
Specs
- TypeInflatable
- HeaterNot applicable
- FormInflatable tub
- PlacementIndoor or outdoor
- SeatsNot applicable
- Max TemperatureNot applicable
- Min Temperature32°F or below
- Capacity (Gallons)81-100 gal
- Chiller0.8-1 HP
- HeatsHeats to 100°F or more
- Water CareFilter, Ozone
- Power Supply120V plug-in (15A)
- EMF ClaimedNot applicable
- EMF MeasuredNot applicable
- CertificationsNone verifiable
- Warranty1 Year
At a glance
- Repair kit included
- Carry case
- 55 to 60 dB running
The SUN HOME trademark for saunas and cold plunge tubs is registered at the USPTO to Fish & Fischer, LLC of San Diego (Reg. No. 7823324, June 2025).
- Sun Home Saunas sells its saunas and cold plunges, from a one-person pod to a six-person stove-heated cabin, in the US through its own store at sunhomesaunas.com, run from San Diego, California.
- No Sun Home store or listing was found on Amazon US in October 2026.
The Sun Home Cold Plunge Horizontal is an inflatable lie-down tub sold with a standalone 1 HP chiller that cools to 32°F and heats to 104°F. Sun Home's page gives 128 gallons and a 69 by 19.5 by 23.5 inch interior; Garage Gym Reviews lists 95 gallons in its test table.
The tub measures 6.4 by 2.3 by 2.1 ft outside and the chiller 21.2 by 15.7 by 21.7 inches; the chiller weighs 88 lb in Garage Gym Reviews' test. It runs on a dedicated 120 V 15 A GFCI circuit with a NEMA 5-15 plug, at 55 to 60 dB.
A 20-micron paper filter, a metal inlet screen, ozone injection and an app over 2.4 GHz Wi-Fi come with the chiller. An insulated cover with lid, an air pump, hoses, a spare filter, a repair kit and a carry case are in the box. Filter three-packs sell for $49.00.
Questions answered from our data

Is Sun Home good?We list 17 Sun Home products and score 17 of them. Their overall scores run from 4.4 to 7.0, with a median of 5.6, against a median of 5.6 for all 17 products we score.
How much does a cold plunge cost?The 5 cold plunges we list run from $3,799 to $15,199, with a median of $13,999.- How cold does a cold plunge get?Five of the 5 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?Four of the 5 cold plunges we list hold more than 100 gallons, as their makers rate them.

