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Finnleo IS402 IR-only (175-310 cu ft) Infrared System
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Description
Finnleo Infrared (IR) Heating System — IS402
Finnleo's IS402 Infrared Heating System lets you transform any permanently installed residential sauna in the 175–310 cubic foot range into a dual-mode wellness sanctuary. By adding three low-EMR infrared emitter panels alongside your existing traditional heater, you gain the freedom to choose between a classic high-heat Finnish session and a gentle, lower-temperature infrared session — all in the same room. The IS402's three-panel configuration delivers broad radiant coverage across wider wall surfaces, enveloping bathers in consistent infrared heat from multiple angles. Infrared heat radiates directly into the body rather than simply warming the surrounding air, producing deep perspiration at a more comfortable ambient temperature that many bathers find easier to tolerate for longer periods. The kit includes three IR-160-240 infrared emitter panels and a contactor box, ready to integrate cleanly into your sauna's existing tongue-and-groove walls.
Key Features
- Residential retrofit for existing permanent traditional saunas — no structural changes needed
- Includes three IR-160-240 infrared emitter panels and contactor box for broad radiant wall coverage
- Low-EMR panels for confident, longer sessions
- Compatible room height: 81" – 84"
- Sized for rooms of 175 – 310 cubic feet
- Pairs with the SaunaLogic 2 IS (SL2-IS) control for single-interface dual-mode operation
- Safety-tested and listed for North American residential use
Note: An SL2-IS control is required and sold separately. Ask us to confirm the IS402 is the right fit for your room.
Specifications
| Model | Room Size (cu ft) | IR Output | Paired Heater | Panel Configuration |
|---|---|---|---|---|
| IS402 | 175 – 310 cu ft | 2.3 kW | 6.0 kW | 3 mid-size IR panels |
The IS402 includes three IR-160-240 emitter panels, delivering greater radiant coverage across wider wall surfaces compared to the single-panel IS401. Both models cover the same 175–310 cu ft room range at 2.3 kW IR output paired with a 6.0 kW traditional heater — choose the IS402 when you want maximum infrared exposure from multiple angles. Room height must be between 81" and 84". All electrical installation must be performed by a licensed electrician per NEC requirements.
Why Buy Finnleo from Us
Finnleo, built by Sauna360 in Cokato, Minnesota, is one of the most trusted names in authentic Finnish sauna. Every heater is safety-tested and listed for North America, and the SaunaLogic2® ecosystem ties your heater, lighting, and audio into one app-controlled experience. We are an authorized dealer offering full factory warranty, expert sizing help, and support before and after your purchase.
Have a question about fit, voltage, or lead time? Reach out and a sauna specialist will help you spec it correctly the first time.
Ready to upgrade your sauna? Contact us for sizing guidance — we'll confirm the IS402 is the right match for your room dimensions and existing heater, and help you source the required SL2-IS control at the same time.