Buy from Almost Heaven Saunas: Blackwater 1-2 Person Mini-Cube Sauna
Almost Heaven Saunas' own page for the Blackwater 1-2 Person Mini-Cube Sauna. Not a paid link.
Blackwater 1-2 Person Mini-Cube Sauna vs Duo Outdoor Sauna, 2 Person
Almost Heaven Saunas Blackwater 1-2 Person Mini-Cube Sauna and Redwood Outdoors Duo Outdoor Sauna, 2 Person, compared on the figures their makers publish. Both are cube saunas rated by their makers for at least some of the same number of people.
The makers' figures side by side
| Specification | Almost Heaven Saunas Blackwater 1-2 Person Mini-Cube Sauna | Redwood Outdoors Duo Outdoor Sauna, 2 Person |
|---|---|---|
| Format | Cube sauna | Cube sauna |
| Indoor or outdoor | — | Outdoor |
| Seats (maker's rating) | 1–2 people | 2 people |
| Outside dimensions | — | 62 ¾” L x 50 ¾” W x 82 ¾” H with trim installed |
| Wood | Choose Rustic Cedar for that classic sauna aroma and natural warmth, or go with a customizable Onyx Stain | Canadian Thermowood |
| Heater | — | 6kW Harvia KIP Heater with upgrade options available |
| Heater output | 6 kW | 6 kW |
| Electrical supply | 6kW, 240V, 30-amp requirement, hard-wire connect | 120V for lighting and 240V for heater |
| Warranty | Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components | 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date |
| Made in | USA | — |
| Price on the maker's site | From $8,397 (almostheaven.com, 23 Sep 2026) | $5,899 (redwoodoutdoors.com, 23 Sep 2026) |
Each figure is the maker's own, as cited row by row on the Blackwater 1-2 Person Mini-Cube Sauna and Duo Outdoor Sauna, 2 Person pages and listed in the sources below. A dash means the figure is not on the maker pages we cite. Figures marked "about" are Saunakivi's unit conversions of the maker's figure.
Where to buy
Buy from Redwood Outdoors: Duo Outdoor Sauna, 2 Person
Redwood Outdoors' own page for the Duo Outdoor Sauna, 2 Person. Not a paid link.
Where the published figures differ
- Seats (maker's rating): Blackwater 1-2 Person Mini-Cube Sauna: 1–2 people. Duo Outdoor Sauna, 2 Person: 2 people.
- Wood: Blackwater 1-2 Person Mini-Cube Sauna: Choose Rustic Cedar for that classic sauna aroma and natural warmth, or go with a customizable Onyx Stain. Duo Outdoor Sauna, 2 Person: Canadian Thermowood.
- Electrical supply: Blackwater 1-2 Person Mini-Cube Sauna: 6kW, 240V, 30-amp requirement, hard-wire connect. Duo Outdoor Sauna, 2 Person: 120V for lighting and 240V for heater.
- Warranty: Blackwater 1-2 Person Mini-Cube Sauna: Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components. Duo Outdoor Sauna, 2 Person: 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date.
- Price on the maker's site: Blackwater 1-2 Person Mini-Cube Sauna: From $8,397 (almostheaven.com, 23 Sep 2026). Duo Outdoor Sauna, 2 Person: $5,899 (redwoodoutdoors.com, 23 Sep 2026).
Figures we cite for only one of the two: indoor or outdoor (only Redwood Outdoors's cited pages give it); outside dimensions (only Redwood Outdoors's cited pages give it); heater (only Redwood Outdoors's cited pages give it); made in (only Almost Heaven Saunas's cited pages give it). Ask the other maker before treating the two as equal on those points.
Read each one in full
Almost Heaven Saunas Blackwater 1-2 Person Mini-Cube Sauna
Almost Heaven Saunas · seats 1–2 · cube sauna
Redwood Outdoors Duo Outdoor Sauna, 2 Person
Redwood Outdoors · seats 2 · cube sauna · for outdoor use
Sources
- NEW Blackwater 1-2 Person Mini-Cube Sauna - Almost Heaven Saunas — Almost Heaven Saunas
- Duo 2 Person Outdoor Sauna | Redwood Outdoors — Redwood Outdoors
- Sauna Warranty Information — Redwood Outdoors