Almost Heaven Blackwater 4 Person Cube Sauna review
By Kirill Gissa · Published · Specs checked Oct 8, 2026 · 
Scores 9.25/10, tied for 1st of the 25 outdoor saunas we track. At $11,268 it works out to $1,878 per seat, which is level with the median of $1,878 per seat for non-barrel outdoor saunas. No max temperature or heat-up time is published for it; 4 of the 25 outdoor saunas state a max temperature. It carries a lifetime warranty, against the 5-year median for non-barrel outdoor saunas.
You might send it back: returns carry a restocking fee of 25%, while 16 of the 25 outdoor saunas charge none
- Price
- $11,268
- Heat
- Electric heater; wood-burning Harvia M3 optional
- Seats
- 4–6
- Max temp
- Not stated
- Warranty
- Lifetime (limited)
- Returns
- 30 days
Specs and sources
Checked Oct 8, 2026 · all from almostheaven.comHeat and power
Build
Buying
Warranty, returns and shipping
Limited lifetime (sauna); heater 1 yr elements, 5 yr other.
30 days, unopened only; minus freight both ways, 25% restocking.
US only; ships in 8–12 weeks.
Warranty: Limited lifetime (sauna); heater 1 yr elements, 5 yr other. Returns: 30 days, unopened only; minus freight both ways, 25% restocking. Shipping: US only; ships in 8–12 weeks. Source: almostheaven.com, checked Oct 8, 2026.
Source: almostheaven.com, checked Oct 8, 2026.
Compared with similar outdoor saunas
All 25 outdoor saunas →| Model | Price | Heat | Seats | Warranty | Score | Where to buy |
|---|---|---|---|---|---|---|
| Redwood Outdoors Extra-Wide Outdoor Barrel Sauna - 6 Person | $7,885 | Electric heater | 4–6 | 1 year | 8.75/10 | Check price → |
| Golden Designs Arlberg 3 Person Traditional Outdoor Sauna (GDI-8103-01) | $7,999 | Electric heater | 3 | Not stated | 9/10 | See specs → |
| Almost Heaven Blackwater 4 Person Cube SaunaTHIS MODEL | $11,268 | Electric heater; wood-burning Harvia M3 optional | 4–6 | Lifetime (limited) | 9.25/10 | |
| Sun Home Luminar 5 (Outdoor Full-Spectrum Infrared) | $13,899 | Full spectrum + far infrared | 5 | 1 year (limited) | 9.25/10 | Check price → |
| Almost Heaven Solide Compact 4-6 Person Cabin Sauna | $14,233 | Electric heater; wood-burning option | 4–6 | Lifetime (limited) | 9/10 | See specs → |
