Outdoor Sauna Buying Guide: Prices and Setup
A good first outdoor sauna is a 2 to 4 person barrel with a 6 kW electric heater, from $4,485 on the maker's store. Budget separately for a 240V circuit and a level base that drains.
By John Voll · Updated Oct 27, 2026 · We may earn a commission from links
An outdoor sauna is a small wooden building with a heater in it. The price depends on the shape, the heater (electric or wood) and what it sits on. Prices below are from each maker's own store on the day I checked.
Pick the shape
A barrel heats fastest and costs least. A cabin has flat walls and room to stand, and usually costs more. A cube has a big glass front and costs the most for its size. The barrel vs cabin vs cube guide goes through each one.
| Model | Price | What the price buys | Link |
|---|---|---|---|
| Almost Heaven Salem 2-Person Barrel | $4,485 | with a 6 kW Harvia KIP heater | View |
| Redwood Outdoors Duo 2-Person | $4,899 | cabin price; heater chosen separately | View |
| Almost Heaven Pinnacle 4-Person Barrel | $6,060 | with a 6 kW Harvia KIP heater | View |
| Redwood Outdoors Cabin 4-Person | $6,299 | cabin price; heater chosen separately | View |
| Almost Heaven Princeton 6-Person Barrel | $8,932 | with an 8 kW Harvia KIP heater | View |
| Almost Heaven Allegheny 6-Person Cabin | $10,722 | with an 8 kW Harvia KIP heater; wood-burning option $15,006 | View |
| Almost Heaven Blackwater Mini-Cube | $8,397 | with a 6 kW Harvia KIP heater | View |
Lowest listed configuration on each maker's store, checked Oct 27, 2026.
Watch what the price includes. Almost Heaven prices include a Harvia heater. Redwood Outdoors prices are the cabin only; a Harvia KIP 6 kW heater package from Redwood is $1,195 more.
Pick the heater
Most people buy electric. A 6 kW heater needs a 240V, 30-amp circuit with #10 wire; an 8 kW heater needs 40 amps and #8 wire. Wood-burning heaters need no circuit but do need a chimney and clearances. The sauna heater guide compares them, and the heater size calculator sizes one for your room.
Outdoor infrared
Outdoor infrared cabins exist, but they need 240V too, so they lose the plug-in advantage infrared has indoors. Compare one against a barrel with an electric heater before you buy.
Sun Home Luminar 2-Person Outdoor
$11,599
- Type
- full spectrum
- Range
- up to 170°F
- Power
- 240V, 20A, NEMA L6-20 plug, GFCI
Base and permits
- Base: a concrete pad, pavers on compacted gravel, or a deck that can carry the weight. Wood on wet ground rots.
- Permits: many places require one for a new 240V circuit. Ask your building department, and check HOA rules if you have one.
- Winter: an outdoor sauna starts from outdoor temperature, so it takes longer to heat in cold weather. If you are between two heater sizes, take the bigger one.
Sources
- Almost Heaven, Salem 2 Person Barrel Sauna
- Almost Heaven, Pinnacle 4 Person Barrel Sauna
- Almost Heaven, Princeton 6 Person Barrel Sauna
- Almost Heaven, Allegheny 6 Person Cabin Sauna
- Almost Heaven, Blackwater Mini-Cube Sauna
- Redwood Outdoors, Duo Outdoor Sauna
- Redwood Outdoors, Cabin Outdoor Sauna 4 Person
- Sun Home, Luminar 2-Person Outdoor Infrared Sauna
- Redwood Outdoors, Harvia KIP 6kW package (240V, 30A, #10 wire)
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.