PRODUCT REVIEWS & BUYING GUIDES
US EDITION · USD

SIDE BY SIDE

Compare products.

See prices, running costs, specifications and trade-offs side by side. Choose two to four products of the same type.

Change products
CriterionSun Home Cold Plunge ProNordic Wave Viking Premier Cold Plunge
US price$14,599Checked Oct 13, 2026 · Price details in the review$5,990Checked Oct 13, 2026 · Price details in the review
Three-year ownership estimate$15,873.01

Incomplete known subtotal.

Not included: installation, other annual costs, energy use.
$6,169.97

Incomplete known subtotal.

Not included: energy use.
Choose ifYou want very cold plunges in a stainless hard-shell tub without plumbing, and you can give it a dedicated 15 A GFCI circuit.You have a small indoor or outdoor spot near a standard outlet, and you want cold plunges and warm soaks without an electrician.
Main trade-offAt $14,599, you get one year of coverage, and labor and shipping are covered only for the first 90 days.The chiller is covered for only a year, and power costs are unknown because Nordic Wave publishes no power draw.
Key specifications
  • Temperature range: 28–70°F set range, about 8 hours to cool to 38°F. Sun Home says it can make floating ice
  • Chiller: 1 HP, Secop SCE21CNLX compressor with 390 g of R290 refrigerant, 55–60 dB
  • Electrical: Rated 120 V, 12 A with a NEMA 5-15P plug on a dedicated 15 A GFCI circuit. Wattage not stated
  • Size and capacity: 150 gallons. 78.7 × 33.5 × 34.2 in outside, 47.4 × 28.7 × 27.5 in inside
  • Weight: 400 lb dry. Filled weight not stated
  • Water care: Ozone, UV and dual-pump circulation through a 10 × 2.5 in, 20-micron filter
  • Controls: Touchscreen panel, plus the Sun Home app over Wi-Fi for temperature, lights, the Polar Jet and scheduling
  • Temperature range: 35–104°F with the included heater. Hot mode is switched on in the Nordic Flow app
  • Chiller: Gen 2 Pro, rated 0.8 HP, with an auto-priming pump. The 1.0 HP Elite is suggested for warm climates. No cooling rate is published
  • Electrical: Standard 120 V household outlet. Amperage, wattage and GFCI needs not stated
  • Size and capacity: 36 W × 30 D × 44 H in outside and about 95 gallons. Listed at 60 lb without water and about 904 lb with water
  • Water care: Multi-stage filtration with UV on the product page, and ozone in the store description. 50-micron filters, changed monthly
  • Outdoor use: Rated down to 14°F ambient. Drain it at 14°F or below
  • Controls: Free Wi-Fi control in the Nordic Flow app. A 60-day membership to its mindfulness tools is included, and guided routines are an optional subscription
Exact variantCold Plunge Pro (base model, SKU PLUNGEPROS): 150-gallon hard-shell tub with a 316 stainless basin, not the Pro Apex or Pro TitanArctic White with the Gen 2 Pro chiller (0.8 HP, heater included)
DimensionsThe assembled tub measures 78.7 × 33.5 × 34.2 in (length, width, height). Inside, the spec sheet gives 47.4 × 28.7 in, with 27.5 in of depth. It holds 150 gallons and weighs 400 lb dry. Sun Home doesn't give a filled weight, but 150 gallons of water alone weighs about 1,250 lb. It ships in an 84 × 37 × 42 in crate that weighs 636 lb. The spec card rates it for one person.Outside, it measures 36 W × 30 D × 44 H in. Inside, the spec table lists 32 W × 26 D × 39 H in, but an FAQ on the same page gives 37 in for the height. The floor is 24 × 19 in, and it holds about 95 gallons. The spec table lists it at 60 lb without water and about 904 lb with water. Those figures don't add up, since 95 gallons of water weighs about 790 lb. That leaves about 110 lb of dry weight, not 60. Nordic Wave's online store gives 235 lb for the Pro version and 245 lb for the Elite, without saying what that weight covers. An FAQ on the page says the Classic Viking is 30 in wide and fits through most residential doors. That 30 in matches the tub's depth, not its 36 in width.
InstallationThere's no plumbing: you fill it with a hose. It's rated 120 V and 12 A. The 8 ft cord can't be removed and plugs into a standard NEMA 5-15 outlet. That outlet must sit on a dedicated 15 A GFCI circuit, and Sun Home says no hardwiring is needed. The spec sheet asks for 3 ft of clearance at the vent end and 1 ft on each side. The head end can sit against a wall, and the whole setup needs about 9.5 × 5 ft. It's rated for indoor and outdoor use on a surface that can carry the filled tub. Sun Home says not to run it outdoors below freezing or leave it out through freezing weather. The first cool-down takes several hours, and the lid shortens it.Nordic Wave says the chiller runs from a standard 120 V household wall outlet, with no specialized electrical upgrades. It doesn't give amperage, wattage or a GFCI requirement. The page calls setup plug-and-play, with an auto-priming pump, and puts it at 15 minutes. It doesn't say how to fill the tub. You drain it by connecting a garden hose to the bottom valve. It's rated for indoor and outdoor use down to 14°F ambient. At 14°F or below, the FAQ says to drain it and store it somewhere temperature-controlled. Shipping to the continental US is free by FedEx Freight. White Glove delivery is an optional upgrade at checkout, and the page doesn't give its price. It ships in 1 to 2 weeks.
MaterialsThe basin is 316-grade stainless steel inside a hard shell with injected insulation. Sun Home calls it marine-grade construction. An insulated lid, a headrest and stair mats are included. It also has a touchscreen panel and interior lights with a color remote. Sun Home doesn't name the shell material or the insulation type on the pages reviewed.Nordic Wave doesn't name the shell material. The walls have 2 in of foam insulation, with an anti-sweat design meant to stop condensation. The floor slopes to a dedicated drain valve. It comes with all-weather steps, a Stay-Cold lid and a 2-month supply of filters. The chiller has a clear filter housing, so you can see the filter.
WarrantySun Home gives the Cold Plunge Pro a 1-year residential limited warranty against manufacturing defects. It covers the original buyer only. It starts at purchase or delivery, whichever is later, as long as delivery is within six months of purchase. Labor and shipping are covered for the first 90 days from delivery. After that, you pay both, and Sun Home chooses whether to repair or replace. Wear and tear, abuse, improper installation, electrical problems and use outside the published guidelines aren't covered. The product page shows a "1+ Year Warranty" badge and a site-wide "Limited Lifetime Warranty On Most Models" banner. That lifetime coverage is for cabinetry and heaters on some saunas, and the warranty page lists the Pro at one year. Extended warranties are sold separately, but no price is given. Commercial buyers get separate terms at the point of sale.The tub is covered for 5 years from purchase and the chiller for 1 year from delivery, against defects in materials and workmanship. The warranty page covers the Viking Cold Plunge System and doesn't name the Premier separately. Coverage is for home use by the original buyer and can't be transferred. You must buy filters from Nordic Wave to keep it. Exclusions include skipped filter changes, poor water care, freezing, voltage fluctuations and misuse. Improper installation or relocation is excluded too, and using a third-party freight forwarder voids it. It must be installed and running within 30 days of delivery, and mold or stagnant water from a delay isn't covered. A chiller repair or replacement costs you a flat $250 for shipping and packaging both ways. Repairs must be done by a Nordic Wave approved technician.
ReturnsYou can return it within 30 days of delivery only if it's unused and still in its original, unopened packaging. Sun Home won't take back an uncrated, assembled or used cold plunge. It keeps a 25% restocking fee and charges shipping both ways, even on a free-shipping order. Returns need approval through Sun Home's returns portal first. Refunds are issued within 21 days of receiving the return, after inspection. Every cancellation costs 3% per product, even within 24 hours of ordering. After 24 hours, a 25% restocking fee is added, and you may pay roundtrip shipping. On a $14,599 tub, the restocking fee alone is $3,649.75.You have 15 days from delivery to request a return, and only new units qualify. Every approved return is charged a flat 20% restocking fee on what you actually paid, even if the box was never opened. The fee includes return freight. At the $5,990 sale price, that's $1,198. You can cancel within 48 hours of ordering for a full refund if the order hasn't entered fulfillment. After that, a 5% fee applies until it ships, and a shipped order can't be canceled. Refurbished, open-box, floor-model and clearance units are final sale. A defective or damaged unit carries no restocking fee if you report it within 48 hours of delivery. That's shorter than the 7 days the warranty page gives for shipping damage.
Unresolved questions
  • Average power draw and daily run time
  • Filled weight
  • Water-change interval
  • Whether delivery includes placement or is curbside
  • Shell and insulation materials
  • Whether the tub or chiller carries an electrical safety listing such as ETL, UL or CSA
  • Whether the app carries a fee
  • Price of the extended warranty
  • Commercial warranty terms
  • Power draw, amperage, and whether a GFCI or dedicated circuit is recommended
  • Cooling and heating rates
  • What the optional guided-routine subscription costs after the 60-day membership
  • Shell material
  • The price of White Glove delivery
  • Whether the $5,990 sale price applies at checkout, since Nordic Wave's online store still shows $6,990, and when the sale ends
  • Whether the tub or chiller carries an ETL, UL or CSA safety listing
  • Whether the interior height is 39 in or 37 in
  • Whether the 60 lb empty weight includes the chiller, and what the store's 235 lb weight covers
  • Whether filters need changing once or twice a month, since the product and filter pages differ
  • Whether ozone is part of the water care, since the product page lists UV and the store description lists ozone

These comparisons use published specifications, not head-to-head tests. Prices and terms are dated. Unknown costs are not zero. Check the exact variant before you buy.