See it at Plunge Chill: 1HP Chiller + Tub(Plus)
Plunge Chill's own page for the 1HP Chiller + Tub(Plus). Not a paid link.
1HP Chiller + Tub(Plus) vs Cold Plunge Horizontal
Plunge Chill 1HP Chiller + Tub(Plus) and Sun Home Cold Plunge Horizontal, compared on the figures their makers publish. These cold plunges with a chiller hold amounts of water, by their makers' figures, within 30% of each other.
The makers' figures side by side
| Specification | Plunge Chill 1HP Chiller + Tub(Plus) | Sun Home Cold Plunge Horizontal |
|---|---|---|
| Indoor or outdoor | indoor and outdoor | Indoors or out — but the chiller needs ambient temperatures above 40°F to run |
| Outside dimensions | 35.4″ Diameter × 31.5″ H | Horizontal Length 77.2″ Width 27.6″ Height 24.4″ |
| Electrical supply | Plug & Play | Dedicated 15 Amp GFCI Circuit; NEMA 5-15 (standard wall plug) |
| Weight | — | 15.5 lbs tub · 88 lbs chiller |
| Material | PVC + fiberglass; 5-layer insulated design | A puncture-resistant inflatable tub — vertical or horizontal — with an insulated cover |
| Water capacity | 120 gallons | 128 gal |
| Chiller | Cooling Power: 2600W (1 HP compressor) | The standalone chiller cools and heats, covering 32°F to 104°F |
| Lowest temperature the maker states | 36°F | 32°F |
| Filtration and sanitation | 20-micron inline filter | A metal mesh filter catches hair and debris, a 20-micron paper filter handles the fine stuff, and ozone injection keeps the water sanitized. |
| Kit includes | 1 x Water Chiller Unit; Insulated lockable lid with 3 secure buckles | — |
| Warranty | — | 1+ Year Warranty |
| Price on the maker's site | $1,399 (sale price on plungechill.com, 29 Sep 2026) | $4,099 (sunhomesaunas.com, 29 Sep 2026) |
Each figure is the maker's own, as cited row by row on the 1HP Chiller + Tub(Plus) and Cold Plunge Horizontal 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
Buy from Sun Home: Cold Plunge Horizontal
Sun Home's own page for the Cold Plunge Horizontal. Not a paid link.
Where the published figures differ
- Indoor or outdoor: 1HP Chiller + Tub(Plus): indoor and outdoor. Cold Plunge Horizontal: Indoors or out — but the chiller needs ambient temperatures above 40°F to run.
- Outside dimensions: 1HP Chiller + Tub(Plus): 35.4″ Diameter × 31.5″ H. Cold Plunge Horizontal: Horizontal Length 77.2″ Width 27.6″ Height 24.4″.
- Electrical supply: 1HP Chiller + Tub(Plus): Plug & Play. Cold Plunge Horizontal: Dedicated 15 Amp GFCI Circuit; NEMA 5-15 (standard wall plug).
- Material: 1HP Chiller + Tub(Plus): PVC + fiberglass; 5-layer insulated design. Cold Plunge Horizontal: A puncture-resistant inflatable tub — vertical or horizontal — with an insulated cover.
- Water capacity: 1HP Chiller + Tub(Plus): 120 gallons. Cold Plunge Horizontal: 128 gal.
- Chiller: 1HP Chiller + Tub(Plus): Cooling Power: 2600W (1 HP compressor). Cold Plunge Horizontal: The standalone chiller cools and heats, covering 32°F to 104°F.
- Lowest temperature the maker states: 1HP Chiller + Tub(Plus): 36°F. Cold Plunge Horizontal: 32°F.
- Filtration and sanitation: 1HP Chiller + Tub(Plus): 20-micron inline filter. Cold Plunge Horizontal: A metal mesh filter catches hair and debris, a 20-micron paper filter handles the fine stuff, and ozone injection keeps the water sanitized.
- Price on the maker's site: 1HP Chiller + Tub(Plus): $1,399 (sale price on plungechill.com, 29 Sep 2026). Cold Plunge Horizontal: $4,099 (sunhomesaunas.com, 29 Sep 2026).
Figures we cite for only one of the two: weight (only Sun Home's cited pages give it); kit includes (only Plunge Chill's cited pages give it); warranty (only Sun Home's cited pages give it). Ask the other maker before treating the two as equal on those points.
Read each one in full
Plunge Chill 1HP Chiller + Tub(Plus)
Plunge Chill · cold plunge with a chiller · 120 gallons · for indoor or outdoor use
Sun Home Cold Plunge Horizontal
Sun Home · cold plunge with a chiller · 128 gallons · for indoor or outdoor use
Sources
- 1HP Chiller + Tub(Plus) - Plunge Chill — Plunge Chill
- Cold Plunge Horizontal - Sun Home — Sun Home