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Head-to-head buyer guide

Renu Therapy Cold Stoic 3.0 vs Renu Therapy Siberian Pro

Specs, prices, editor verdict, and who should buy which, compared side by side.

By Ryan · Founder
Updated Oct 16, 2026

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Quick verdict

Renu Therapy Cold Stoic 3.0 (ultra premium, $11,399 to $12,099) vs Renu Therapy Siberian Pro (ultra premium, $14,099 to $14,419). Different tools for different jobs (see the per-product details below).

Compared on 12 shared specs · same category (cold plunge).

Renu Therapy Cold Stoic 3.0 cold plunge in Meterous Black with California Redwood breath deck.
Renu Therapy

Cold Stoic 3.0

A 70 by 33 by 35 inch plunge that runs 37F to 104F on one 120V / 15A outlet, at $11,399, and a warranty badge that reads 5 years while the chiller carries 1.

PRICE
$11,399 to $12,099
View at Renu Therapy →
Renu Therapy Siberian Pro cold plunge tub in Black with a California Redwood breath deck and a matching step stool in front
Renu Therapy

Siberian Pro

The Siberian Pro is Renu Therapy's 80 inch, cold only plunge tub, with a 48 by 24 by 30 inch water area, a 0.8 HP chiller and a plug for a standard 120V / 15A outlet. Renu sells it direct at $14,099, or $14,419 with the spa light.

PRICE
$14,099 to $14,419
View at Renu Therapy →
The verdict

We have not scored these two head to head, so this page does not name a winner. The Renu Therapy Cold Stoic 3.0 starts at $11,399 and the Renu Therapy Siberian Pro at $14,099. The per-buyer recommendations below say who each one suits.

Side-by-side specs

SpecRenu Therapy Cold Stoic 3.0Renu Therapy Siberian Pro
price$11,399 to $12,099$14,099 to $14,419
temperature range37F to 104F, cold and hot37F to 70F, cold only
chillerCustom-optimized 0.5 HP0.8 HP refrigeration system
dry weight365 lbs650 lbs (295 kg); 710 lbs (322 kg) with the pallet per the user manual
filled weightApproximately 1,155 lbs at a 95 US gallon fillAbout 1,500 lbs with 120 gallons per the product page and specifications page; the user manual gives about 1,500 lbs with 100 gallons
power drawPeak 518W at 6.1A cooling, 1,013W at 8.6A heating; 24 hour average 130W at 40F, 260W at 100F350 to 500 W at 3 to 5 A while the chiller runs, per the product page; 600 W at 5 A peak and 160 W average over 24 hours at 40F, per the specifications page and cut sheet; 600 W at 5 A in the user manual
noise58 decibels at approximately 3 feet from the large grillAbout 58 dB at 3 feet from the large grill; 67 dB at 2 inches from the large grill per the user manual
insulation4 inches perimeter4 inches per a product page tile and the cut sheet; 3 inches per the comparison table
filtrationDual-stage external plus internal, with integrated ozone purification50 micron XL filter with tool free swaps and an integrated ozone generator; 24 hour circulation with a 22 minute turnover; dual VGB compliant drains
warranty5 years body from delivery date, 1 year water chiller from delivery date1 year on components and 1 year on the chiller from shipment, residential use in the 48 contiguous states, per the warranty page; the user manual says 5 years on components and 1 year on the chiller in all 50 states, and a product page tile reads 5 year Warranty
extended chiller warranty$499.99, adds 4 years, must be bought within 364 days of shipment$499.99; adds 4 years after the 1 year chiller term for 5 years in total
returns45 days from delivery, 5 percent restocking fee plus shipping45 days from delivery, 5% restocking fee plus shipping costs; return freight amount not published; bulk orders of 3 or more units and international sales are final
lead timeShips in 3 to 5 weeksShips in 4 to 6 weeks per the product page; built to order; the FAQ says lead times do not include shipping transit

Renu Therapy Cold Stoic 3.0 also publishes: body dimensions, tank interior, heater, water volume, power, controls, vent clearance, plumbing, step stool, finishes, reviews, build

Renu Therapy Siberian Pro also publishes: model, maker, outside dimensions, water area, capacity, palletized size, cooling rate, power supply, controls and app, lighting, construction, colors, user fit, use limits, in the box, installation, delivery, maintenance, warranty exclusions, cancellation, outside the US, support

Who should buy which

Pick the Renu Therapy Cold Stoic 3.0 if

A homeowner replacing a cold-only tub who wants 37F and 104F from one unit, already has a dedicated 120V / 15A circuit within about 12 feet, 27 inches of clearance at the large vent, and a way to move 365 lbs off a pallet.

Skip if

Delivery stops at the curb and the 365 lb tub is yours to move from there, Renu publishes no white glove or in-home placement option at any price, and changing your mind inside the 45 day window costs a 5 percent restocking fee plus shipping.

Pick the Renu Therapy Siberian Pro if

A taller or heavier home user, whom Renu puts at 6'8" or 290 lbs and up, who wants a cold only tub and has a level floor near a drain that can carry about 1,500 lbs, a 120V / 15A outlet within reach of a 9 foot cord, and helpers to move 650 lbs off a pallet.

Skip if

You want hot and cold water in one tub, since Renu's FAQ lists the Siberian Pro as cold only; you plan to plunge with a partner, since the manual says single occupancy only; or you need app control settled before you buy, because Renu's pages disagree on whether this tub has Wi-Fi.

Go deeper

FULL REVIEW
Read the Renu Therapy Cold Stoic 3.0 review →
FULL REVIEW
Read the Renu Therapy Siberian Pro review →

Frequently asked

Which is better, the Renu Therapy Cold Stoic 3.0 or the Renu Therapy Siberian Pro?

We have not scored these two head to head, so this page does not name a winner. The Renu Therapy Cold Stoic 3.0 starts at $11,399 and the Renu Therapy Siberian Pro at $14,099. The per-buyer recommendations below say who each one suits.

How much do they cost?

Renu Therapy Cold Stoic 3.0: $11,399 to $12,099. Renu Therapy Siberian Pro: $14,099 to $14,419. Prices are verified against the manufacturer; check the live links for current pricing.

Who should buy which one?

Renu Therapy Cold Stoic 3.0: A homeowner replacing a cold-only tub who wants 37F and 104F from one unit, already has a dedicated 120V / 15A circuit within about 12 feet, 27 inches of clearance at the large vent, and a way to move 365 lbs off a pallet. Renu Therapy Siberian Pro: A taller or heavier home user, whom Renu puts at 6'8" or 290 lbs and up, who wants a cold only tub and has a level floor near a drain that can carry about 1,500 lbs, a 120V / 15A outlet within reach of a 9 foot cord, and helpers to move 650 lbs off a pallet.

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