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1HP Chiller + Tub(Plus) vs Model S1 Package

Plunge Chill 1HP Chiller + Tub(Plus) and SaunaLife Model S1 Package, compared on the figures their makers publish. The makers of both cold plunges with a chiller state water capacities within 30% of each other.

The makers' figures side by side

The makers' figures side by side
SpecificationPlunge Chill 1HP Chiller + Tub(Plus)SaunaLife Model S1 Package
Indoor or outdoorindoor and outdooroutdoor
Outside dimensions35.4″ Diameter × 31.5″ H40"Diameter x 41.3"H
Inside dimensions—34.4"Diameter x 36"Height
Electrical supplyPlug & Play—
Weight—Product weight when filled: 1,158 lbs
Assembly—Arrives fully assembled
MaterialPVC + fiberglass; 5-layer insulated designThick contoured fiberglass lining
Water capacity120 gallons124 Gallon water capacity
ChillerCooling Power: 2600W (1 HP compressor)A built-in chiller/heater
Lowest temperature the maker states36°F—
Filtration and sanitation20-micron inline filter—
Kit includes1 x Water Chiller Unit; Insulated lockable lid with 3 secure bucklesThis package comes equipped with the tub, a built-in chiller/heater, and stairs.
Warranty—service for two years for residential applications after delivery to the original retail purchaser
Price on the maker's site$1,399 (sale price on plungechill.com, 29 Sep 2026)—

Each figure is the maker's own, as cited row by row on the 1HP Chiller + Tub(Plus) and Model S1 Package pages and listed in the sources below. A dash means the figure is not on the maker pages we cite. Figures marked "about" are Saunakivi's unit conversions of the maker's figure.

Where to buy

SaunaLife Model S1 Package

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Where the published figures differ

  • Indoor or outdoor: 1HP Chiller + Tub(Plus): indoor and outdoor. Model S1 Package: outdoor.
  • Outside dimensions: 1HP Chiller + Tub(Plus): 35.4″ Diameter × 31.5″ H. Model S1 Package: 40"Diameter x 41.3"H.
  • Material: 1HP Chiller + Tub(Plus): PVC + fiberglass; 5-layer insulated design. Model S1 Package: Thick contoured fiberglass lining.
  • Water capacity: 1HP Chiller + Tub(Plus): 120 gallons. Model S1 Package: 124 Gallon water capacity.
  • Chiller: 1HP Chiller + Tub(Plus): Cooling Power: 2600W (1 HP compressor). Model S1 Package: A built-in chiller/heater.
  • Kit includes: 1HP Chiller + Tub(Plus): 1 x Water Chiller Unit; Insulated lockable lid with 3 secure buckles. Model S1 Package: This package comes equipped with the tub, a built-in chiller/heater, and stairs.

Figures we cite for only one of the two: inside dimensions (only SaunaLife's cited pages give it); electrical supply (only Plunge Chill's cited pages give it); weight (only SaunaLife's cited pages give it); assembly (only SaunaLife's cited pages give it); lowest temperature the maker states (only Plunge Chill's cited pages give it); filtration and sanitation (only Plunge Chill's cited pages give it); warranty (only SaunaLife's cited pages give it); price on the maker's site (only Plunge Chill's cited pages give it). Ask the other maker before treating the two as equal on those points.

Read each one in full

Sources

  1. 1HP Chiller + Tub(Plus) - Plunge Chill — Plunge Chill
  2. Model S1 Package - SaunaLife — SaunaLife
  3. SaunaLife: SaunaLife Warranty (PDF) — SaunaLife