Best Infrared Sauna: Far vs Full Spectrum, by Budget
The best infrared sauna for most homes is a 2 person far infrared cabin on a 120V circuit, from about $5,500 to $6,200 (Sunlighten Signature II, Sun Home Solstice 2). Full spectrum models cost roughly $500 to $3,500 more for the same size.
By John Voll · Updated Oct 27, 2026 · We may earn a commission from links
Far infrared vs full spectrum
Far infrared cabins use one type of heater panel. Full spectrum cabins add shorter infrared wavelengths, and some add halogen heaters for more heat. Sunlighten describes its Amplify line as full spectrum plus halogen, and its mPulse line as delivering red light and each infrared band separately. Full spectrum costs more. Whether it is worth it is a preference; I would not pay the difference based on health claims, since the research behind sauna claims is mostly on traditional saunas.
Under $6,500: far infrared
Sunlighten Signature II (Obsidian)
$5,499$6,399
- Type
- far infrared (SoloCarbon heaters)
On sale when I checked (regular $6,399). Sunlighten does not list electrical requirements on the product page, so confirm the circuit before ordering.
Sun Home Solstice 2-Person Infrared
$6,199
- Type
- far infrared only
- Top temperature
- about 145°F
- Power
- 120V, 2,006 W, dedicated 20A circuit
- Outlet
- NEMA 5-20
- Weight
- 522 lb
The clearest published electrical spec of the group: 120V, a dedicated 20-amp circuit and a NEMA 5-20 outlet.
| Model | Price | What the price buys | Link |
|---|---|---|---|
| Sunlighten Signature I | $4,999 | Type: far infrared (SoloCarbon heaters) | View |
| Almost Heaven Hinton 2-3 Person Infrared | $6,840 | Type: far infrared | View |
Lowest listed configuration on each maker's store, checked Oct 27, 2026.
$6,000 to $9,500: full spectrum
| Model | Price | What the price buys | Link |
|---|---|---|---|
| Sunlighten Amplify II | $5,999 | Type: full spectrum plus halogen heaters | View |
| Sun Home Equinox 2-Person Full-Spectrum | $6,799 | Type: full spectrum | View |
| Clearlight Sanctuary 2 (at Renu Therapy) | $8,957 | basswood; $9,411 in mahogany | View |
Lowest listed configuration on each maker's store, checked Oct 27, 2026.
Clearlight does not publish prices on its own site; the Sanctuary 2 price above is from Renu Therapy, a retailer. See the Clearlight review.
The top of the range
Sunlighten mPulse Believe
$8,899
- Type
- red, near, mid and far infrared, delivered separately
Outdoor infrared
Sun Home Luminar 2-Person Outdoor
$11,599
- Type
- full spectrum
- Range
- up to 170°F
- Power
- 240V, 20A, NEMA L6-20 plug, GFCI
Needs 240V on a 20-amp circuit with a NEMA L6-20 plug. At that point compare it with a traditional barrel.
Sources
- Sunlighten, Signature I
- Sunlighten, Signature II
- Sunlighten, Amplify II (full spectrum plus halogen)
- Sunlighten, mPulse Believe
- Sun Home, Solstice 2-Person Infrared Sauna (120V, 2,006 W, about 145°F)
- Sun Home, Equinox 2-Person Full-Spectrum
- Sun Home, Luminar 2-Person Outdoor
- Almost Heaven, Hinton 2-3 Person Infrared Sauna
- Renu Therapy, Clearlight Sanctuary 2
- Clearlight, Sanctuary full spectrum saunas (pricing not published)
Prices and specs are from each maker's own product page on the date shown next to them. Prices change; the store is always right and we may be out of date.
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