Swim • Train • Soak • Plunge
Icelandic Swim Spas: A Pool, Gym and Hot Tub in One
Swim against a steady current, work out without stressing your joints, and soak in hydrotherapy jets afterward, all in your own backyard. Icelandic swim spas bring year-round swimming, aquatic fitness and relaxation into a footprint far smaller than a traditional pool.
Choose the full-featured Fossa 3B, the 110V plug-and-play Fossa PP, or the Triathlon, a 3-in-1 swim spa, hot tub and cold plunge.
Which Icelandic swim spa is right for me?
Choose the Fossa 3B for maximum jet power, river swim jets and the most seating in a 12′9″ swim spa. Choose the Fossa PP if you want the same footprint on simple 110V / 15 Amp plug-and-play power. Choose the Triathlon if you want swimming, a hot tub and a cold plunge for contrast therapy in one 19′5″ unit.
Why Choose a Swim Spa?
- Swim in place, year-round. Swim jets create a current you can swim against, and the water stays heated through every season.
- Low-impact fitness. Water supports your body, so swimming, water walking and aquatic exercise are easier on your joints. It’s a good fit for every fitness level.
- Hydrotherapy built in. Massage jets and lounge seating turn your workout space into a place to relax and recover.
- A smaller footprint than a pool. At about 7′5″ wide, an Icelandic swim spa fits patios and yards where a lap pool won’t.
The Fossa Series: 12′9″ Swim Spas for Fitness and Family Fun
Both Fossa models share a compact 153″ × 89″ × 46″ footprint, an acrylic shell and a durable synthetic cabinet. Ozone sanitation and two filter elements help keep the water clear.
The Fossa 3B is built for performance, with three 3 hp pumps and river swim jets. The Fossa PP runs on standard 110V / 15 Amp power for a simpler installation and gives you a more open swim zone.
Full-Featured Swim Spa
Icelandic Fossa 3B
The performance Fossa. Three 3 hp jet pumps power 22 therapy jets plus 2 river swim jets, with lounge seating for post-swim recovery.
- 12′9″ L × 7′5″ W × 46″ D (153″ × 89″ × 46″)
- 22 jets + 2 river swim jets
- 3 seats + 2 benches
- 3 × 3 hp jet pumps + 0.5 hp circulation pump
- 220V / 50 Amp, Balboa BP2000 (5.5 kW) + TP600
- Interior and exterior LED lighting
Plug & Play Swim Spa
Icelandic Fossa PP
The same 12′9″ Fossa footprint with a more open swim zone, and it runs on 110V / 15 Amp power for a simpler installation.
- 12′9″ L × 7′5″ W × 46″ D (153″ × 89″ × 46″)
- 18 jets
- 2 seats + open swim zone
- 2 hp jet pump + 0.5 hp circulation pump
- 110V / 15 Amp plug and play, Balboa TP500
- 1,342-gallon water capacity
The Triathlon: Swim Spa, Hot Tub and Cold Plunge in One
The Icelandic Triathlon brings three wellness experiences together in one 233″ × 89″ system. Swim against the current, warm up in the hot tub, then reset in the cold plunge. It’s contrast therapy without separate tubs to buy, install or maintain.
Swim Zone
1,695 gallons
River swim jets for laps and aquatic exercise
Fire Zone
182 gallons • 2 seats
A heated hot tub for massage and relaxation
Ice Zone
148 gallons • 1 seat
A cold plunge for a refreshing post-workout reset
3-in-1 Swim Spa + Hot Tub + Cold Plunge
Icelandic Triathlon
Swim, soak and plunge in one 19′5″ system, with a heated swim zone, a 2-seat hot tub (Fire) and a 1-seat cold plunge (Ice).
- 19′5″ L × 7′5″ W × 59″ D (233″ × 89″ × 59″)
- 31 total jets, including 3 river swim jets
- Swim 1,695 gal • Fire 182 gal • Ice 148 gal
- Dual Balboa controls + heat pump
- Waterline LED lighting in all three zones
- Hatteras Grey or Sequoia Redwood
Compare the Swim Spa Layouts
From above, you can see how each model balances swimming room, seating and therapy zones.
Fossa 3B: 3 seats, 2 benches, river swim jets
Fossa PP: 2 seats with an open swim zone
Triathlon: 1 Ice seat, 2 Fire seats + swim zone
Icelandic Swim Spa Specifications Compared
Select a model name to see full details.
| Specification | Fossa 3B | Fossa PP | Triathlon |
|---|---|---|---|
| Type | Single-zone swim spa | Single-zone plug-and-play swim spa | 3-in-1: swim spa, hot tub, cold plunge |
| Dimensions (L × W × D) | 153″ × 89″ × 46″ (12′9″ × 7′5″) | 153″ × 89″ × 46″ (12′9″ × 7′5″) | 233″ × 89″ × 59″ (19′5″ × 7′5″) |
| Dry weight | 1,984 lbs | 1,910 lbs | 4,079 lbs |
| Water capacity | 1,065 gal | 1,342 gal | Swim 1,695 / Fire 182 / Ice 148 gal |
| Approx. filled weight* | ≈ 10,900 lbs | ≈ 13,100 lbs | ≈ 21,000 lbs |
| Seating | 3 seats + 2 benches | 2 seats + swim zone | Fire: 2 seats • Ice: 1 seat + swim zone |
| Jets | 22 + 2 river jets | 18 | 31 (incl. 3 river swim jets) |
| Pumps | 3 × 3 hp + 0.5 hp circ | 1 × 2 hp + 0.5 hp circ | 2 × 3 hp + 3 × 2 hp + circ pumps |
| Electrical | 220V / 50A | 110V / 15A plug and play | Dual systems + 120V heat pump (confirm with electrician) |
| Controls | Balboa BP2000 (5.5 kW) + TP600 | Balboa TP500 | Balboa BP2000G1 (5.5 kW) + TP700 / BP100 (4 kW) + TP500S |
| Lighting | Interior + exterior LED | — | Waterline LED in all 3 zones |
| Sanitation | Ozone, 2 filters | Ozone, 2 filters | Ozone, 4 filters |
| Shell / cabinet | Acrylic / synthetic | Acrylic / synthetic | Acrylic / synthetic panels |
*Approximate filled weight = dry weight + water (about 8.34 lbs per gallon), before bathers. Always confirm electrical and foundation requirements with a licensed professional before installation.
How to Plan for Your Swim Spa
- Measure your space. Fossa models need about 12′9″ × 7′5″ and the Triathlon about 19′5″ × 7′5″. Add at least 2 feet of clearance on each side for service access.
- Prepare a solid base. A level, reinforced concrete pad is the most common choice. Make sure it’s rated for the full filled weight.
- Check your power. The Fossa PP plugs into a 110V / 15 Amp circuit. The Fossa 3B needs 220V / 50 Amp, and the Triathlon needs multiple circuits installed by a licensed electrician.
- Plan the delivery path. Swim spas usually arrive by freight and may need a crane or a wide, clear path to the installation spot. Confirm access before delivery day.
- Pick the experience. Choose fitness and family fun with the Fossa 3B, simple plug-and-play setup with the Fossa PP, or full hot-and-cold contrast therapy with the Triathlon.
Swim Spa FAQs
What is a swim spa?
A swim spa is a large, deep spa with powerful swim jets that create a steady current, so you can swim in place without needing a full-size pool. Swim spas also include hydrotherapy jets and seating, so the same unit works for exercise, water play and relaxation.
Which Icelandic swim spa plugs into a standard outlet?
The Icelandic Fossa PP is a plug-and-play swim spa rated for 110V / 15 Amp, so it doesn’t need a 220V hardwired circuit. The Fossa 3B needs 220V / 50 Amp service, and the Triathlon uses dual control systems plus a heat pump. Always have a licensed electrician confirm your setup.
What is the difference between the Fossa 3B and the Fossa PP?
Both share the same 153″ × 89″ × 46″ footprint. The Fossa 3B is the full-featured model, with three 3 hp jet pumps, 22 jets plus 2 river swim jets, 3 seats and 2 benches, LED lighting and 220V / 50 Amp power. The Fossa PP is the plug-and-play model, with a 2 hp jet pump, 18 jets, 2 seats with a more open swim zone, and 110V / 15 Amp power.
Can a swim spa also be a hot tub and a cold plunge?
Yes. The Icelandic Triathlon combines a heated swim zone, a 2-seat hot tub (Fire zone) and a 1-seat cold plunge (Ice zone) in one 233″ × 89″ unit. Each zone holds its own water, so you can move between exercise, heat and cold in a single session.
How much space do I need for a swim spa?
The Fossa 3B and Fossa PP are 12′9″ long and 7′5″ wide, and the Triathlon is 19′5″ long and 7′5″ wide. Plan for at least 2 feet of clearance on all sides for service access, and check that delivery equipment can reach the installation spot.
What kind of foundation does a swim spa need?
A swim spa needs a level, solid base, typically a reinforced concrete pad, rated for the full weight of the spa, water and bathers. Filled with water, the Fossa models weigh roughly 11,000–13,000 lbs and the Triathlon roughly 21,000 lbs before bathers, so confirm your base with a contractor.
Is a swim spa better than a pool?
A swim spa takes up far less space than a lap pool, heats for year-round use, and combines swimming with hydrotherapy seating. It’s a strong choice for exercise, recovery and small to mid-size yards. A traditional pool offers more open space for large groups.
Who makes Icelandic swim spas?
Icelandic swim spas are part of the Icelandic Wellness family of hot tubs, swim spas, cold plunges and saunas, based in Franklin, Kentucky.
Make Every Day a Swim Day
Swim, train, soak and recover without leaving home. Compare the Fossa 3B, Fossa PP and Triathlon to find the Icelandic swim spa that fits your yard and your routine.
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