Sauna and Cold Plunge at Home: Planning the Setup
A home sauna and cold plunge setup needs two dedicated circuits, the two units placed close together, and level ground for both. Buying each half separately is usually cheaper than a bundle; one example below comes to $8,584.
By John Voll · Updated Oct 27, 2026 · We may earn a commission from links
Power: two circuits
A traditional sauna with a 6 kW heater needs its own 240V, 30-amp circuit. A chilled cold plunge needs its own 120V circuit; Plunge specifies a dedicated 15-amp circuit for the All-In. So a backyard setup usually means two new circuits, often in the same trench. Tell the electrician about both at once so you pay for one trench. The electrical guide has the details.
Space
Put the two close together so you can go straight from one to the other. Leave room for the chiller's airflow (Plunge asks for 16 inches on the fan side) and for a bench or towel hook. Both need level ground, and a full plunge is heavy: the All-In weighs 1,150 pounds with water.
Bundles
Several makers sell both together. Check what each half is before comparing totals.
| Model | Price | What the price buys | Link |
|---|---|---|---|
| Redwood Outdoors Duo Sauna + Alaskan All-In-One | $12,199 | View | |
| Ice Barrel Amplify II + Ice Barrel 500 + Chiller | $11,000 | View | |
| Plunge All-In + Infrared Sauna bundle | $14,180 | View |
Lowest listed configuration on each maker's store, checked Oct 27, 2026.
A bundle ties you to one maker for both halves. Pricing them separately is easy. Almost Heaven's Salem barrel with a heater ($4,485) plus Sun Home's tub-plus-chiller ($4,099) comes to $8,584 for a traditional sauna and a 1 HP chilled plunge, less than any bundle above.
| Model | Price | What the price buys | Link |
|---|---|---|---|
| Almost Heaven Salem 2-Person Barrel | $4,485 | with a 6 kW Harvia KIP heater | View |
| Sun Home Cold Plunge (Horizontal) | $4,099 | Coldest: 32°F (depends on room temperature) | View |
Lowest listed configuration on each maker's store, checked Oct 27, 2026.
What to buy first
If the budget does not cover both, I'd buy the sauna first and use an Ice Barrel or a stock tank with ice for the cold side for a season. Then decide whether you want a chiller; the chiller vs ice guide has the numbers. Size the sauna heater with the heater size calculator and estimate the bill with the running cost calculator.
Sources
- Redwood Outdoors, Duo Outdoor Sauna x Alaskan All-In-One Cold Plunge
- Plunge, Plunge All-In + Infrared Sauna Bundle
- Ice Barrel, Amplify II + IB500 + Chiller
- Plunge, Plunge All-In (dedicated 120V 15A circuit)
- Redwood Outdoors, Harvia KIP 6kW package (240V, 30A)
- Almost Heaven, Salem 2 Person Barrel Sauna
- Ice Barrel, Ice Barrel 500
Prices and specs are from each maker's own product page on the date shown next to them. Prices change; the store is always right and we may be out of date.
Related guides
Costco saunas
Costco sauna buying guide: what to check on any Costco sauna listing (heater, 240V circuit, base, returns) and what the same money buys direct.
Best home saunas
The best home saunas by budget, space and power: outdoor barrel, cabin, indoor and infrared picks, with maker prices and specs checked Oct 2026.
Infrared vs traditional
Infrared vs traditional sauna: temperature, wiring (120V vs 240V), steam and warm-up compared from maker specs, and which to buy for your room.
Barrel, cabin or cube
Barrel sauna vs cabin vs cube: price, heat-up, floor and foundation for each outdoor sauna type, and which one to buy first.
Heater size calculator
Sauna heater size calculator: enter room dimensions and glass to get the right kW, using Harvia's published room-volume ratings.
Sauna electrical
Sauna electrical requirements: 120V vs 240V, breaker and wire size for 6 and 8 kW heaters, and when a plug-in infrared sauna is enough.