G2 4-Person Outdoor Sauna

The cheapest cabin per seat in our data: $4,990 for 4 seats and a 5-year warranty, with no heater information at all.

G2 comes to $1,248 per seat, 33 percent under the cabin median. It is a spruce cabin, 64.2 by 71.8 inches and 86.4 tall, at 1,100 pounds, and the only spruce model here. The cabin comparison is stark: SunRay's Cayman is $700 more for the same seats, and the Dundalk Palmer $2,156 more.

The missing piece

The weak point is the missing heater. The data holds neither a type nor a kilowatt rating, while the SunRay Cayman, another 4-seat cabin, lists 8 kW, so you may need to price a heater separately or check what ships. The 5-year warranty is stated. Choose it if you want the cheapest cabin and are prepared to confirm the heater before ordering. Topture and Recovery for Athletes both list it at $4,990.