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Infrared included, plus a traditional heater. FD-4 Trinity is a 2-person indoor combo: Spectrum Plus IR plus a Harvia Vega Compact 1900 (1.9 kW) with stones, Wi-Fi control, and a Spectrum red-light panel. Exterior about 48.8" × 48.8" × 83.1"; about 86 cu ft. IR side 120V 15A 1750W up to 170°F; traditional 1.9 kW / 120V up to about 190°F. Do not add a second heater.
Built-in Wi-Fi control: preheat, schedule and adjust the infrared temperature from your phone.
How it heats
Use IR, or the Vega Compact stone heater for löyly, per the Trinity manual — not two extra heaters from us. Electrician confirms both circuits. 1.9 kW is a small traditional heater sized to this 2-person cabin, not a family barrel.
What’s included
Trinity cabin
Spectrum Plus IR
Harvia Vega Compact 1900 and stones
Wi-Fi control
Red-light panel as named
Specs
Brand: Finnmark Designs
Heat: Infrared + traditional
Persons: 2
Exterior: about 48.8" × 48.8" × 83.1"
Volume: about 86 cu ft
IR electrical: 120V 15A 1750W, max 170°F
Traditional heater: Harvia Vega Compact 1900 1.9 kW / 120V included, about 190°F
These are complete IR (or combo) cabins with fixed volume. Electrician confirms the circuit. Email hello@selfcaresaunas.com with site questions.
FAQ
Traditional Harvia heater included? FD-4: Vega Compact 1900 yes. FD-5: KIP45B yes. FD-6/FD-7: no, sold separately. FD-1–3: no, IR only.
Stones included? Only with the Trinity traditional heaters (FD-4/FD-5). IR cabins do not use löyly stones.
Indoor? Indoor cabin.
120V or 240V? 120V. The infrared side runs on 120V, 15A (1750W), and the included Harvia Vega Compact 1900 (1.9 kW) traditional heater also runs on 120V. Have an electrician confirm both circuits.
Warranty: Covered by the manufacturer for defects in normal use — see the product page and manufacturer spec sheet.
Freight / parcel: Inspect the shipment on delivery. If anything is damaged, photograph the carton and product and email hello@selfcaresaunas.com or use chat within 24 hours.
