Almost Heaven Allegheny 6-Person Cabin Sauna

Where Almost Heaven's barrels are weekend projects, the Allegheny is a small building: a cabin of raw, untreated Nordic Spruce with 1½"-thick lumber, a sloped all-weather roof, a front porch for cooling off between rounds, and an interior room measuring 75" x 75" x 84" with a 75" x 24" upper bench and 75" x 19" lower bench for up to six bathers. The base $7,505 configuration (against a $10,722 compare-at) runs an 8kW Harvia KIP heater with manual dials; the ladder climbs through an 8kW smart KIP and a 10.5kW Virta with the Fenix Wi-Fi control to a Pro 20 wood-burning kit at $10,504 — the only model in this group that can go fully off-grid for heat.

The demands scale with the size. Electric configurations need a hardwired 240V circuit at 40, 45, or 50 amps depending on heater choice, plus a 110V/15A plug-in feed for lighting, and the page quotes an expected shipping lead time of 8–12 weeks with professional nationwide installation offered from $1,400. Coverage follows the brand pattern — limited lifetime on the structure, 1 year on Harvia heating elements and 5 years on other heater components. Assembled weight, exterior footprint including the porch, and heat-up times are not published, which matters for anyone planning pad size and permitting for a structure this large.