Overview

The SaunaLife S2NC pairs the 200-gallon, two-person Model S2N natural Thermo-Pine immersion tub with the AP-1 chiller and heater. It holds water anywhere from 37°F to 107°F, for cold immersion or heated soaking. A cold plunge with a chiller is a cold water immersion tub with a refrigeration unit that cools and filters continuously, so it holds a set temperature instead of warming up like an ice bath. One tub supports both cold immersion and heated soaking. The AP-1 runs on a standard 110 to 120V GFCI-protected circuit, uses an ozone generator and external filter, and can be controlled through an LCD touchscreen, a Wi-Fi app, or an LED remote.

Key Features

• Model S2NC Package at a glance

• Arrives assembled. No jets, no lighting, no lounge seating

Product Benefits

The S2NC is the natural Thermo-Pine version of the S2BC package. Core dimensions, capacity, controls, and chiller performance are the same. The wood is left in its natural tone rather than painted, which suits a cedar deck, a garden setting, or a room where the tub sits next to natural-wood cabinetry. The tub is oval, 74.4 by 46 inches at its widest points, with a shaped gray fiberglass interior sized for two adults. It arrives fully assembled with foundation beams and two-tier wooden steps. Session length depends on experience, water temperature, and individual health. Begin with short exposures and increase gradually. People who are pregnant or who have cardiovascular, circulation, or other relevant medical conditions should consult a qualified healthcare professional before cold immersion.

Specifications

Ideal For

Natural-wood settings: cedar decks, gardens, timber-clad rooms

Couples and training partners sharing one tub

Sauna owners adding the cold side of contrast therapy

Protected installs within the rated ambient range

Anyone plunging often enough that ice has stopped making sense

Not ideal for

Anyone who needs water below 37°F

Owners who want a finish that stays one tone with no weathering

Solo users who do not need a second seat

Exposed sites, or spaces outside the rated ambient range

Tight spaces. The tub alone is over 6 feet long

Site requirements before you order

Surface. Level concrete slab, patio, or properly prepared paver base able to carry the 2,021 lb filled weight plus bathers. Raised decks and upper floors need structural approval.

Power. A 110 to 120V GFCI-protected receptacle on a manufacturer-specified circuit, within reach of the chiller. No 240V circuit or hardwiring is required. Confirm the required circuit rating with our team before ordering, then have a licensed electrician verify that the intended receptacle and circuit are suitable.

Chiller siting. The AP-1 sits alongside the tub and connects through the 3/4 in NPT ports, so allow for its footprint when you place the tub. Keep it protected from direct rain, snow, and prolonged sun while maintaining the manufacturer's ventilation clearance. Do not enclose it or cover it while running.

Ambient operating range. 32°F to 113°F. Suitable for garages and protected outdoor areas within that range.

Total installed space. The tub is 74.4 by 46 inches. Allow more on top of that for the AP-1, the steps, ventilation clearance, hose connections, servicing access, and safe entry. How much more depends on where the chiller sits, so confirm your layout with our team before ordering. Measure the delivery route as well.

Drainage. 1 inch outlet with a ball valve. Plan a suitable drainage route before filling the tub.

Finish care. Thermo-Pine is thermally modified for stability and outdoor durability, but its appearance still changes with exposure, and care needs depend on placement and climate. A manufacturer-approved exterior wood treatment can help preserve the warmer tone. Follow SaunaLife care instructions for product type and frequency.

Cover. A tub cover is not included unless shown in the package contents. Contact us to confirm compatible cover options. A cover slows heat gain between sessions and keeps debris out.

Consumables. Test strips, water treatment, and replacement filters. The Spa Care Essentials 3-Month Maintenance Kit covers a first season.

Chiller package or ice: which should you buy?

Decision factor

S2NC with chiller

Tub filled with ice

Prep per session

Minimal. Water stays near your set temperature between sessions

Buy and haul ice every time

Two users back to back

Same temperature for both

Temperature climbs between sessions

Hot mode

Yes, up to 107°F

No

Water hygiene

Ozone, external filter, circulating pump

Manual treatment, more frequent refills

Ongoing cost

Electricity

Ice purchases

What ships with the S2NC Package?

Tub: fully assembled Model S2N with natural Thermo-Pine walls, contoured fiberglass insert, foundation beams 3.94 x 3.94 in, round deluxe two-tier stairs, 1 in drainage fitting with ball valve, 3/4 in NPT chiller connections, installation instructions.

Chiller: AP-1 unit, filter assembly and filter, main and secondary filter wrenches, secondary filter screen, two water hose lines, LED remote, installation and operation manual.

How does the S2NC compare to the other immersion tubs?

S2NC Package

S2BC Package

S2N tub only

Finish

Natural Thermo-Pine

Black Thermo-Pine

Natural Thermo-Pine

Chiller included

Yes, AP-1

Yes, AP-1

No. Chiller-ready ports fitted

Water range

37°F to 107°F

37°F to 107°F

Temperature depends on added ice or supplied water

Bathers and volume

2 bathers, 200 gallons

2 bathers, 200 gallons

2 bathers, 200 gallons

Natural-wood settings, set-and-hold temperature

Dark exteriors, set-and-hold temperature

Occasional plunging, chiller added later

Full specifications: Model S2N tub

Model

MODEL S2N (S2NC Package)

Material

Natural Thermo-Pine, walls 0.7 in (1.7 cm)

Liner

Gray contoured fiberglass insert, ergonomic

Capacity

Up to 2 bathers, 200 gallons

Exterior dimensions

74.4 in W (189 cm) x 46 in D (117 cm) x 41 in H (104 cm)

Interior dimensions

66.5 in W (169 cm) x 39.1 in D (99 cm) x 36 in H (91 cm)

Weight

353 lbs empty (160.1 kg), 2,021 lbs filled (916.7 kg)

Foundation beams

3.94 in x 3.94 in (10 cm x 10 cm)

Drainage / chiller ports

1 in (3 cm) drain, 3/4 in (2 cm) NPT connections

Tub shipping

81.5 in W x 48 in D x 47.4 in H, 396 lbs (180 kg)

Origin

Designed by SaunaLife, handcrafted in Northern Europe

Full specifications: AP-1 chiller and heater

Model

AP-1

Water temperature range

37°F to 107°F (3°C to 42°C)

Rated ambient range

32°F to 113°F (0°C to 45°C)

Capacity

3.05 kW cooling, 4.04 kW heating

Electrical

110 to 120V, 60Hz, GFCI cord and plug. See manual for circuit rating

Pump

Built-in self-priming system

Water care

Ozone generator, externally installed filter

Control

LCD touchscreen, Wi-Fi app (iOS and Android), LED remote

Refrigerant

R32

Dimensions and weight

21.3 in W x 15.8 in D x 22.2 in H, 98 lbs (44.5 kg)

What does delivery involve?

Freight in two crates, curbside by appointment. The tub ships on a pallet at 396 lbs and 81.5 x 48 x 47.4 inches, the chiller separately. The driver lowers the crates to ground level and stops there, so indoor placement needs your own help or a paid add-on. Because the tub arrives fully assembled, check gate, doorway, hallway, and turning clearances against the shipping dimensions before you order. Freight is quoted separately, lead time is confirmed with SaunaLife before you order, and white glove delivery options are available at addition

Frequently Asked Questions

What temperature range does the S2NC hold? The AP-1 chiller and heater hold water anywhere from 37°F to 107°F.

How is this different from an ice bath? A cold plunge with a chiller like the AP-1 cools and filters continuously, holding a set temperature instead of warming up the way an ice bath does.

How is the tub controlled? Through an LCD touchscreen, a Wi-Fi app, or an LED remote.

What power does it need? The AP-1 runs on a standard 110 to 120V GFCI-protected circuit, so no 240V circuit or hardwiring is required.

How much does it weigh filled? The tub weighs 353 lbs empty and 2,021 lbs filled, so the surface underneath must be rated to carry that weight plus bathers.

Questions? Contact us at support@goofitness.com or visit goofitness.com.