▶ Product showcase — Cassina SUPA-04
4-Person Infrared Sauna for Home & Family Use
Comfortable 4-person far-infrared sauna, 1800×1250×1900mm, 3500W far-infrared heating panels for fast warm-up and low EMF. Voltage 110-240V customizable — dimensions, wood (Hemlock/Red Cedar/Spruce), color, logo, box and manual all customizable. OEM/ODM supported.
- ✓ Spacious 4-person size (1800×1250×1900mm)
- ✓ 3500W far-infrared heating panels, low EMF
- ✓ Voltage 110-240V customizable — works worldwide
- ✓ Chromotherapy lighting + smart digital control + LED spotlights
- ✓ Hemlock / Red Cedar / Spruce — wood type customizable
- ✓ Color / logo / box / manual all customizable, OEM/ODM
Product Information
Full specifications & trade terms. Customization available.
| SPECIFICATIONS | |
| Dimensions (L×W×H) | 1800 × 1250 × 1900 mm · Customizable |
| Capacity | 4 Persons |
| Power | 3500 W |
| Voltage / Frequency | 110-240V · Customizable |
| Heating | Carbon fiber far-infrared panels (low EMF) |
| Wood | Hemlock / Red Cedar / Spruce (customizable) |
| Control System Certified | UL / FCC / RoHS |
| Standard Features | LED light · ceiling speakers · digital control · tempered glass door |
| TRADE TERMS | |
| MOQ | 1 Set |
| Availability | Produced to order (customizable) |
| Lead Time | 15-20 days |
| Port | Shanghai / Ningbo |
| Customization | OEM / ODM / private label · size & wood options |
| Warranty | 1-year warranty (negotiable per project) |
Cassina is a source manufacturer of solid wood saunas. We build high-quality far-infrared saunas, traditional, barrel and outdoor models for global buyers — with a wide range of wood options: Canadian Red Cedar, Hemlock, Spruce and more. OEM/ODM supported. Contact us to choose your preferred material and create your custom sauna.
Wood Options
Different woods for different scenes and budgets — all customizable.
Canadian Red Cedar
加拿大红雪松Naturally rot- and insect-resistant — the top choice for outdoor saunas.
Hemlock
铁杉Fine grain, even color — a great balance of quality and value.
Spruce
云杉Lightweight and smooth, an economical and practical choice.
Thermo-Treated Wood
热处理木Heat-treated for extra stability, durability and moisture resistance.
Hinoki
桧木Natural aroma — the premium choice for authentic Japanese-style saunas.
Pine
松木Clear grain, a classic budget-friendly option, readily in stock.
※ Actual wood availability & stock — please confirm via WhatsApp or email.
Design & Craftsmanship
Every detail solves a real problem.
Product Details
From materials to delivery — every angle covered.
From materials to delivery — every angle covered.
Overview — Cassina far-infrared sauna, 1800×1250×1900mm, 3500W, voltage 110-240V customizable
Why Choose Us — 3500W far-infrared heating, digital control, tempered glass, chromotherapy light
Premium materials & craft — hemlock grain, tempered glass & handle, infrared panels
Specifications — 1800×1250×1900mm · 3500W · 110-240V · OEM/ODM
Perfect for every space — Home / Spa / Hotel / Gym
Factory direct — OEM/ODM · CE/RoHS/UL/FCC · 15-20 days · DDP available
The SUPA-04: Four-User Infrared Without Moving to Commercial
The SUPA-04 is the largest pure-home infrared unit in the A-series: 1800×1250×1900mm with 3500W of carbon-fiber far-infrared panels — enough room for four adults seated comfortably, which makes it the family flagship and a regular request from premium home-build projects. A family-size cabin — four full seats for shared daily sessions at home.
Four users change how a sauna is used: sessions run longer and social. The 3500W heater keeps warm-up practical, UL/FCC/RoHS-tested controls manage the session, and Hemlock, Red Cedar or Spruce are chosen at production. Voltage is preset for your grid.
Who it’s for
- Four-plus households where the sauna is a daily family fixture
- Luxury home builds specifying a large infrared cabin
- Retailers who want one strong 4-person home SKU at the top of the infrared range
How it compares
SUPA-04 vs SUPA-03: SUPA-03 seats three in 1500×1150mm at 3000W; SUPA-04 adds a full row of width and 500W for the fourth user. If the room allows 1800mm, most four-person households go straight to SUPA-04.
SUPA-04 vs SUPB-004: Both are 4-person 3500W cabins at 1800×1250mm. SUPB-004 is the B-platform build with 220–400V supply and corner-glass design; SUPA-04 is the A-platform with 110–240V. Let the buyer’s voltage reality and preferred design language decide.
Frequently Asked Questions
Is 3500W enough for four people?
Yes — far-infrared heats the occupants directly rather than the whole air volume, so 3500W comfortably serves four in this 1800×1250mm cabin.
Voltage range?
110–240V, preset at production; 220–240V is typical for four-person usage and 110V builds are available for the US.
Can it go in a basement or garage?
Yes — the cabin is self-contained and plugs into a suitable circuit; we confirm the electrical spec for your site before shipping.
Is it sold as OEM?
Yes — wood, color, logo, packaging and manual are all configurable.
