Finnleo Infrared (IR) Heating System — IS-Series
Finnleo's IS-Series Infrared Heating Systems let you transform any permanently installed residential sauna into a dual-mode wellness sanctuary. By adding 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. 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. Each kit includes the 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 infrared emitter panels and contactor box
- Low-EMR panels for confident, longer sessions
- Compatible room height: 81" – 84"
- Sized by system to cover 135 – 425 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 match the system size to your room.
Model Comparison
| Model | Room Size (cu ft) | IR Output | Paired Heater | Panel Configuration |
|---|---|---|---|---|
| IS301 | 135 – 200 cu ft | 2.0 kW | 4.5 kW | 1 mid-size IR panel |
| IS302 | 135 – 200 cu ft | 2.0 kW | 4.5 kW | 3 mid-size IR panels |
| IS401 | 175 – 310 cu ft | 2.3 kW | 6.0 kW | 1 mid-size IR panel |
| IS402 | 175 – 310 cu ft | 2.3 kW | 6.0 kW | 3 mid-size IR panels |
| IS601 | 250 – 425 cu ft | 3.0 kW | 8.0 kW | 1 mid-size IR panel |
| IS602 | 250 – 425 cu ft | 3.0 kW | 8.0 kW | 3 mid-size IR panels |
The "1" models include one mid-size IR-160-240 emitter panel; the "2" models include three for greater radiant coverage across wider wall surfaces. 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 match the right IS-Series kit to your room dimensions and existing heater, and help you source the required SL2-IS control at the same time.