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Finnleo · infrared
S-840 Infrared Sauna
Large 4-Person infrared sauna with low EMR/EF technology.
Capacity
4 person
Voltage
120V / 15 Amp
Use Type
Indoor Only
Material
Clear Canadian Hemlock
Heater Type
Infrared
Description ▾
Roomy cabin for up to four adults. Integrated backrest color lighting, EvenHeat distribution, and digital controls. 120V outlet compatible.
Standard Premium Features ▾
- Premium Grade A structural timber (moisture & warp resistant)
- Dual-layer insulated framing panels to trap core heat down to -40°F
- Safety-tempered glass window panes and heavy-duty hinges
- Comfort-contoured hemlock/cedar benches (stay cool to the touch)
- High-durability moisture barrier base protection flooring
Alaska Support & Warranty ▾
- Heater Element: 5-Year Limited Manufacturer Warranty
- Woodwork Cabin: 1-Year Structural Elements Protection
- Anchorage Showroom Support: Live, local assistance for troubleshooting and installation questions
Technical Specifications
| Brand | Finnleo |
| Category | infrared |
| Capacity | 4 person |
| Heater | Infrared |
| Voltage | 120V / 15 Amp |
| Timber Material | Clear Canadian Hemlock |
| Alaska Ready | Yes (Thermal Core Insulated) |
| Reference SKU | ASC-FIN-S840 |
Performance Lab
Alaskan Thermal Calculator
Calculate how long it takes your sauna to reach target heat (185°F) in winter.
Estimated Pre-heat Duration
37mins
Targeting 185°F core tempEnergy Efficiency
High (Insulated)
Estimated heat-loss: -35%Status check: Perfect pairing. Your heater will easily maintain extreme sauna temperatures.
Pricing Inquiry
Request a customized quote.
Sauna prices vary based on final interior options, custom benching, heating elements, and shipping within Alaska. We will provide a complete transparent quote with freight estimate in 1 business day.
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Infrared View →
