







SP5X6
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Finnmark Designs Spectrum Plus™ high-output infrared heater panel kits are an all-in-one DIY and retrofit solution designed to bring commercial-grade reliability to your sauna build or upgrade. Reach temperatures up to 170°F for deep heat penetration, maximum sweat, and all the health benefits of IR.
Required control sold separately.
Transform your IR wellness space with a Finnmark Designs Spectrum Plus™ high-output, low EMF infrared heater kit, the complete DIY and retrofit solution engineered for custom infrared sauna builds. Whether you are constructing a high-performance IR sauna room from scratch or upgrading an existing cabin, this all-in-one infrared heating system delivers commercial-grade reliability directly to your home. Designed for seamless installation and versatile integration, it provides an effortless way to modernize your setup with industry-leading technology.
Low EMF Technology: Spectrum infrared heaters are not only extremely effective, but they boast extremely low EMFs. Electromagnetic Fields (EMF) are energy waves with frequencies below 300 hertz or cycles per second.
High Emissivity: The ability to give off infrared heat is measured in "emissivity" which is an object's ability to emit far infrared energy. Finnmark's incoloy Spectrum+ heaters produce higher emissivity.
Greater Watt Density: Watt Density is the heat flux emanating from each square inch of the heating surface of the element and determines the heater's operating temperature for a given set of conditions.
Engineered for daily use and longevity, each Spectrum Plus™ sauna heater panel kit uses a heavy-duty, commercial-grade power supply. Built to sustain continuous high-demand cycles, this robust electrical architecture ensures dependable and safe operation. Experience complete peace of mind with hardware precision-crafted to meet the highest safety, efficiency, and durability standards in the sauna industry.
Unlock peak thermal therapy and deep cellular detoxification by reaching cabin temperatures as high as 170°F. Powered by proprietary technologies, this system targets the body with optimized wavelengths for intense heat penetration, and you'll enjoy the most profuse sweat available on the market today. It delivers true full-spectrum performance, elevating your recovery routine through improved circulation, muscle relief, and restorative heat shock protein activation.
FEATURES
| Model | SP5X6 |
| Maximum Temperature Setting | 170°F (76.7°C) |
| Wattage | 4200 |
| Voltage | 240 |
| Amperage | 17.4 |
| Phase | Single |
| Installation type | |
| Room Size | 5' x 6' (1.5 m x 1.8 m) |
| Panel Dimensions | 9"W (22.9 cm) x 2"D (5.1 cm) x 32"H (81.3 cm) |
| Shipping Dimensions | 41"W (104.1 cm) x 16"D (40.6 cm) x 36"H (91.4 cm) |
| Shipping Weight | 65.5 lbs (29.7 kg) |
INCLUDES
REQUIRED COMPONENTS
Sauna Controls - Finnmark V2LCDC-W
See Finnmark Spectrum Plus Infrared Heater Panel Kit Manual
See Spectrum-plus infrared sauna heater kits SP5x6 wiring schematic
See Spectrum-Plus Infrared Specification
See Spectrum-Plus CAD
See EMF Test Log Finnmark Designs
See Finnmark Infrared Heater Panel Warranty

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