GL4 4-Person Outdoor Sauna Kit

A 4-seat thermowood kit with a porch at $9,490, more than double the cheapest four-seater, with a 5-year warranty and no shape or heater power listed.

GL4 costs $2,372 per seat, 55 percent above the all-model median and $4,825 more than the Almost Heaven Watoga, which also seats four. The data does not record a shape for it, so we cannot rank it against barrels or cabins. We do know it measures 79.5 by 58.9 inches, is 85 inches tall and weighs 1,650 pounds, with a porch.

The G2, another 4-seat SaunaLife, lists at $4,990, so the GL4 premium is hard to explain from our fields alone. The 5-year warranty is a plus next to Redwood Outdoors' 1 year, though SunRay states 10. Heater power is missing, and a price this high should come with it. Topture is the only store. It is for buyers who have seen the product and prefer it.