SaunaLife CL3G Review: Best 2-Person Outdoor Cube
SaunaLife CL3G review: a 2-person thermo-spruce cube that fits in about 19 square feet. An owner reports 180°F in 40 minutes with a 6kW heater.
The SaunaLife CL3G is the best outdoor sauna for two. It packs a thermo-spruce cube, 75 inches of headroom and a lifetime warranty into about 19 square feet, and an owner reports 180°F in 40 minutes with a 6kW heater.
- Best for
- Two people and a small footprint
- Skip it if
- You’ll often sauna with more than one other person.
- Price
- About $4,000 + shipping (heater extra)
SaunaLife CL3G Cube specs
| Type | Traditional; electric heater sold separately (4.5–6kW) |
|---|---|
| Capacity | 2 people |
| Max temperature | Traditional heat (an owner reports 180°F in about 40 minutes with a 6kW heater) |
| Power | 240V for the heater (electrician install) |
| Warranty | Limited lifetime |
| Price | About $4,000 + shipping (heater extra) (checked October 2026) |
| Size | 53.2″W × 51.2″D × 81.9″H, 75.4″ interior height |
What we like
- Fits where 4-person cabins won’t (about 19 sq ft)
- Tall interior for a 2-person sauna
- Thermo-spruce and knotless thermo-aspen benches
- Floor drain and Wi-Fi LED lighting included
What we don't
- Strictly two people
- Heater and freight are extra
- Instructions are poor, owners say
The SaunaLife CL3G is a two-person outdoor cube sauna in thermally modified spruce, with a full-height bronze-glass front and knotless thermo-aspen benches. Its footprint is about 19 square feet. As of October 2026, it’s our pick for the best outdoor sauna for two. An owner running a 6kW Harvia heater reports 180°F in about 40 minutes.
Is the SaunaLife CL3G worth it?
The SaunaLife CL3G is worth it if you want a traditional hot-rock sauna for two and don’t have room for a 4-person cabin. It shares the CL5G’s materials and lifetime warranty in a much smaller, cheaper package.
Great for
- Couples and solo users
- Small patios, garages and urban yards
- Anyone who wants headroom in a small sauna (75.4″ inside)
Skip it if
- You’ll regularly host a third person. Get the CL5G.
- You want the heater included. The Redwood Duo ships with one.
Heat and performance
The SaunaLife CL3G heats quickly thanks to its small volume. An owner with a 6kW Harvia in their garage reaches 180°F in about 40 minutes and calls the setup “perfect in terms of size, performance, and comfort”. SaunaLife recommends 4.5–6kW for this size. The tall interior helps because heat rises: more space above the bench means a hotter, more even upper zone.
Size, power and installation
The SaunaLife CL3G measures 53.2″ W × 51.2″ D × 81.9″ H outside and 49.6″ × 43.2″ × 75.4″ inside. It ships flat-packed by LTL freight at about 990 lb. The heater needs a 240V circuit installed by an electrician.
The CL3G owner improved airflow by adding a mechanical exhaust vent to the outside and flipping the back panel so the floor vent sits opposite the heater.
Build quality and durability
The SaunaLife CL3G uses a solid thermo-spruce shell, knotless thermo-aspen benches and an asphalt shingle roof, handcrafted in Northern Europe. It includes a floor drain, backrest and Wi-Fi LED lighting. Owners of SaunaLife’s cubes describe the build as sturdy.
Features and extras
- Full-height bronze-tinted glass front
- Two-tier thermo-aspen bench with backrest
- Floor drain
- Wi-Fi-controlled LED lighting
What owners say
- Heat: 180°F in about 40 minutes with a 6kW heater.
- Size: “the perfect setup” for one owner. It’s strictly two people.
- Shipping: owners say avoid paying the roughly $1,000 freight by asking dealers. Several succeeded.
- Instructions: like the CL5G, owners recommend watching build videos first.
Warranty and customer service
The SaunaLife CL3G carries a limited lifetime warranty. Buy from an authorized dealer such as Topture to keep warranty support simple.
Price and total cost
| Cost | Typical amount |
|---|---|
| CL3G kit | About $3,990 |
| Freight | Up to about $950 (ask for a waiver) |
| 4.5–6kW heater | $1,200–$2,000 |
| 240V electrical + permit | $500–$2,500 |
| Base | $300–$1,500 |
| Typical total | $6,000–$9,500 |
SaunaLife CL3G vs Redwood Outdoors Duo
The Redwood Outdoors Duo is a similar two-person Thermowood cube that includes a 6kW Harvia heater for about $5,900. Its total is often similar to the CL3G’s once you add a heater. The CL3G has the lifetime warranty (Redwood offers one year) and the full glass front. Read our Redwood Outdoors Duo review.
Final verdict
The SaunaLife CL3G is the outdoor sauna we’d buy for two people. Strong materials, surprising headroom and a lifetime warranty make it the best small kit available. Budget for the heater and freight, and ask your dealer about shipping.
How we rated the SaunaLife CL3G Cube
Our rating is based on verified specifications and owner reports, not hands-on testing. How we research and score.
| Heat and performance | 4.4 | |
|---|---|---|
| Build quality and owner-reported reliability | 4.5 | |
| Ease of setup and installation | 3.8 | |
| Warranty and customer service | 4.0 | |
| Value for money | 4.4 | |
| Overall | 4.2 |
Featured in: Best outdoor saunas
SaunaLife CL3G Cube FAQ
How hot does the SaunaLife CL3G get?
A CL3G owner using a 6kW Harvia heater in their garage reports reaching 180°F in about 40 minutes. SaunaLife recommends a 4.5–6kW heater for this size.
How big is the SaunaLife CL3G?
The CL3G measures 53.2 x 51.2 x 81.9 inches outside, about 19 square feet, with a 75.4-inch interior height, so an adult up to about 6 feet 3 inches can stand inside.
Can the SaunaLife CL3G go indoors?
Yes. It's built for outdoor use but one owner runs theirs in a garage, adding a mechanical vent to exhaust outside.