Architectural Head-to-Head

SaunaLife Ergo E8 vs. Cube CL7G: 8-Person Barrel vs. 7-Person Cube

Massive volume outdoor sauna showdown: 91" Barrel vs 98" Cube.

By Mikael Lindström
Published 2026-02-12
Verified Engineering Analysis
Contender A

SaunaLife Ergo E8

Ergo Series

Dimensions:81" Dia × 91" L × 87" H
Capacity:6–8 Persons
Timber:Thermo-Pine Staves & Thermo-Aspen Benches
Heater:9.0 kW – 10.5 kW
Environment:Outdoor
Key Strengths:
  • Dual opposing full-length reclining benches
  • 87" center height
  • Natural circular convective steam flow
Contender B

SaunaLife Cube CL7G

Cube Series

Dimensions:98" W × 87" D × 85" H
Capacity:6–7 Persons
Timber:Thermo-Pine & Full Floor-to-Ceiling Glass
Heater:9.0 kW – 10.5 kW
Environment:Outdoor
Key Strengths:
  • Massive multi-tier benching
  • Panoramic glass front
  • Straight walls facilitate corner heater placement

Head-to-Head Specification Matrix

Evaluation CriteriaSaunaLife Ergo E8SaunaLife Cube CL7GArchitectural Assessment
Reclining Geometry
Layout
Two adults lying completely flat simultaneouslyOne adult lying flat + 4–5 seated bathersThe 91-inch length of the E8 allows two 6-foot adults to lie flat on opposite sides.

Final Verdict

Choose the Ergo E8 if: You and your partner want to lie down flat at the same time and want maximum wood insulation.

Choose the Cube CL7G if: You want stadium-style bi-level seating and a modern architectural glass cube.

The Editorial Verdict

Both models accommodate 6–8 bathers effortlessly. The E8 is the superior choice for athletic recovery duos who want to recline simultaneously. The CL7G is the superior choice for social gatherings.

Objective analysis based on thermodynamics, wood grain science, and physical engineering footprints.

Frequently Asked Questions

Which model holds heat longer after turning off the heater?

The Ergo E8 holds residual heat longer due to its solid 42mm wood rear wall and lower total glass area.