Sun Home vs Clearlight (2026): An Honest Head-to-Head

How we compared these two brands

Sun Home Saunas (founded 2021, San Diego) and Clearlight (selling in the U.S. since 1997, Berkeley, founded by Dr. Raleigh Duncan) sit in the same premium infrared tier but make their cases differently: Sun Home leads with published laboratory documentation and integrated hardware; Clearlight leads with tenure, service coverage, and a modular wellness ecosystem. Both brands hold BBB A+ ratings.

Every claim below is classified by evidence type: manufacturer-published specification, named laboratory report, published warranty or service documentation, or independent editorial coverage. Where a spec is manufacturer-stated and not independently verified, we say so. Pricing was checked on August 20, 2026 against Sun Home product pages, Clearlight's published price list, and authorized-dealer listings; promotional pricing changes frequently, so verify at purchase. We compared current-generation residential models only.

Sun Home vs Clearlight at a glance

1. Heater architecture

Both brands field credible, distinct heating systems. Clearlight's True Wave heaters combine carbon and ceramic elements; on the Sanctuary 2, two 500W True Wave full-spectrum heaters sit on the front wall while carbon-ceramic far-infrared panels wrap the back wall, side walls, calf area, bench, and floor. One important distinction inside Clearlight's own catalog: the Premier line is far-infrared only, with full-spectrum available as a door-heater add-on, so buyers who want near and mid wavelengths from Clearlight should shop the Sanctuary line specifically.

Sun Home's Equinox 2 and Eclipse 2 are full-spectrum platforms; the Eclipse 2 runs six far-infrared heaters plus two full-spectrum heaters. Both companies publish heater layouts that surround the seated body rather than relying on a single panel. Architecture alone does not separate them; documentation of the results does, which is where the next three categories go.

2. Published heat performance

Sun Home publishes model-level maximum temperatures: 165°F on the Equinox and Eclipse, and 170°F on the outdoor Luminar, all manufacturer-stated. Independent editorial testing adds context here: instrumented reviews of an earlier-generation Luminar 5-person recorded cabin temperatures around 160°F, which is worth knowing as a real-world data point alongside the published maximums, and is still at the hot end of the infrared category.

Clearlight's own documentation puts concrete numbers on the other side of this category, and they are much lower. Per Clearlight's FAQ and its new-owner guide, the saunas "operate at comfortable temperatures of 115–125°F," and while the thermostat can be set to 150°F or higher to keep the heaters running, "the cabin will typically reach 115–125°F—this is by design," because the company's engineering position is that infrared should heat the body rather than the air. That rationale is a legitimate design philosophy, and Clearlight positions the lower range as enabling longer, more comfortable sessions. Two measurement notes for fairness: a published maximum and a typical operating range are different measures, and any cabin's real-world air temperature varies with ambient conditions. Even with both cautions applied, the gap between Clearlight's self-documented 115–125°F typical cabin air and Sun Home's published 165–170°F maximums is 40–55°F, which is the largest single specification difference between these two brands. Buyers who want a hotter-running infrared cabin, or who are coming from traditional sauna expectations, should weight this category heavily; buyers who prefer gentler, longer sessions may read the same numbers as a point in Clearlight's favor.

3. EMF documentation

Credit where it is due: Clearlight built its reputation on low-EMF and low-ELF engineering and has marketed shielded heater technology for far longer than Sun Home has existed. Authorized-dealer documentation cites Clearlight EMF below 0.8 mG.

Sun Home's edge is the form of the evidence, not necessarily the physics. It publishes a named-lab survey: Vitatech Electromagnetics, January 2025, fluxgate magnetometer methodology, reporting 0.3–0.9 mG at three feet in the seated position. A named lab, a date, an instrument, and a measurement position let a buyer or a competitor check the claim; "ultra-low EMF" marketing language does not. One caution cuts both ways: the two brands' figures come from different sources and protocols, so treat them as separately documented claims rather than a same-test comparison.

4. Cabin air quality and VOC testing

This category has one entrant. Sun Home publishes a cabin-air VOC result: a one-time sample collected April 2, 2026 by VERT Environmental (Project #66958), analyzed by AIHA-accredited LA Testing under EPA Method TO-15, reporting 27 µg/m³ total VOCs, with a separate adhesive screen finding no formaldehyde or BTEX compounds above laboratory reporting limits. A single sample is a snapshot, not a continuous monitoring program, and we frame it exactly that way; it is still the only named-lab air-quality data published by either brand.

We did not identify published VOC or off-gassing lab testing from Clearlight as of our August 2026 review. Clearlight does emphasize eco-certified mahogany and basswood construction, which speaks to materials sourcing, but materials claims and measured cabin-air results are different kinds of evidence.

5. Red light therapy: integrated vs modular

This is the clearest philosophical difference between the brands, and honest shoppers should pick the philosophy that fits their use, not a single "winner."

Sun Home integrates. The Eclipse 2 ships with two factory-installed light towers as standard equipment: 360 LEDs across dual 900W panels, pairing 660nm visible red with 850nm near-infrared, delivering front-and-back coverage during the sauna session itself. The Pod includes integrated red light as well; on the Luminar it is an optional add-on; the Equinox and Solstice do not include it. LED output figures are manufacturer-stated rather than independently verified, and the light towers are adjusted at the panel rather than through the app.

Clearlight modularizes. Red light is a separate product family: the Personal Tower ($999, spot treatment), the CORE Tower ($1,599, 38-inch, mountable in the sauna or on a stand), and the taller Full Body Tower. Clearlight publishes irradiance figures for this line and offers Variable Optics beam control, and a standalone tower can be used in a bedroom or gym, not just inside the cabin. The trade-offs: added cost on top of the sauna, single-tower coverage unless you buy two, and Clearlight notes that adding a tower inside a cabin can change its electrical requirements.

If you want red light and infrared in one session with zero assembly decisions, the Eclipse is built for that. If you want light therapy you can move around the house, and published irradiance matters to you, Clearlight's tower line is the stronger fit.

6. Warranty and labor coverage

Both brands use the phrase "limited lifetime," and in both cases the formal terms matter more than the phrase. Read them side by side and Clearlight comes out ahead on the dimension that costs owners real money: labor.

Per Clearlight's service documentation, residential indoor saunas carry seven years of labor coverage and residential outdoor models carry five, on top of limited lifetime component coverage. The meaningful condition: outdoor warranty coverage is valid only if the sauna is purchased with, and kept continuously under, the specified water-resistant cover.

Sun Home's formal terms define its limited lifetime coverage around a seven-year expected useful life for specified components, with parts, labor, and shipping fully covered for the first 90 days; after that window, labor and shipping shift to the owner while covered components remain warranted. Ninety days of covered labor versus five to seven years of covered labor is a material difference, and buyers who weight long-horizon service economics heavily have a legitimate reason to choose Clearlight on this category alone.

7. Outdoor engineering

The outdoor category reverses the warranty story. Sun Home's Luminar line uses an aerospace-grade aluminum exterior in matte black, a design protected by U.S. design patent D1,079,961 (granted June 2025), with no cover required for outdoor placement. Aluminum does not rot, warp, split, or need sealing, and the 970-pound Luminar 2 ships crated for a guided two-person assembly.

Clearlight's Sanctuary Outdoor 2 pairs a mahogany interior with an engineered-wood exterior in a weather-resistant DriftwoodTec finish, runs on a 240V circuit, and is a genuinely full-spectrum outdoor cabin. The structural difference is maintenance philosophy: Clearlight's own warranty terms require the specified cover to stay on the sauna continuously for outdoor coverage to remain valid, which tells you how the manufacturer itself rates the exterior's unattended weather exposure. A metal-skinned sauna that needs no cover and a wood-skinned sauna that must live under one are different ownership propositions, and the first is the stronger outdoor engineering answer.

8. App control and session experience

Both brands offer app-based remote operation, so this is not the lopsided category some comparisons make it. Current Clearlight Sanctuary models pair their digital control with the Clearlight app for remote start and scheduling, and the cabins ship with 12-color chromotherapy, an ergonomic backrest, a reservation mode, and Bluetooth audio.

Sun Home's native app runs on the Eclipse 2 and 4, the Pod, and the Luminar 2 and 5, and adds a guided breathwork course library on top of remote preheat and scheduling, which turns the app into session content rather than only a remote control. Eclipse cabins also include chromotherapy and Bluetooth surround audio. The edge is real but modest: if in-app guided sessions matter to you, Sun Home leads; if you only want remote preheat, both deliver it on their current flagship lines.

9. Research footprint and tenure

Twenty-nine years in market buys relationships a 2021 founding cannot. Clearlight cites university research collaborations using its products, including a UCSF study on depression that combined its Curve far-infrared dome with cognitive behavioral therapy, a Loras College exercise-recovery study reporting significant post-session blood-lactate differences, and a Binghamton University body-composition study. It also maintains a long-running network of healthcare practitioners and professional-team installations, and current consumer-press recognition backs the tenure story: Better Homes & Gardens named the Sanctuary 5 its "Best Overall Sauna" of 2026, and TODAY.com listed Clearlight's red light Personal Tower as an editor-approved pick. The university studies are brand-affiliated rather than independent product reviews, but they represent a research investment Sun Home has not yet matched.

Sun Home's third-party record is editorial and laboratory rather than clinical: Fortune's 2026 infrared roundup names the Luminar 5 "Best Infrared Sauna Overall," Forbes named a "Best Infrared Home Sauna" pick, Garage Gym Reviews rated the Equinox 4.4/5 as "Best Overall Infrared Sauna," and the named-lab EMF and VOC reports are covered above. Buyers who want the brand with the longer clinical-adjacent paper trail have their answer here, and it is not the newer company.

10. Pricing and transparency

Sun Home publishes cart pricing on every product page. Clearlight's model pages route shoppers to a pricing consultation, though the company does maintain a published price list and authorized dealers list numbers openly, so the quote gate is thinner than it first appears. We still count visible per-model pricing as the more buyer-friendly default.

On value, the honest answer is configuration-dependent. At the full-spectrum two-person tier, the Equinox 2 (from $5,999 promotional) undercuts the Sanctuary 2 (from $7,399, basswood) by roughly $1,400 while carrying the deeper lab documentation. At the integrated red-light tier, the Eclipse 2 ($9,999 promotional) costs more than a Sanctuary 2 alone, and a Sanctuary 2 plus a $1,599 CORE Tower lands around $8,998 with single-tower coverage versus the Eclipse's dual-tower standard fit. Outdoors, the Sanctuary Outdoor 2 (approximately $8,699–$8,899) undercuts the Luminar 2 ($10,999 promotional) by roughly $2,100–$2,300, with the cover requirement and wood exterior as the offsetting considerations. All figures are August 2026 promotional or dealer pricing and move often.

Model-by-model: the three matchups that matter

Choose Clearlight if

• Long labor coverage is your top criterion: seven years indoor and five outdoor beats a 90-day labor window, full stop.
• You want the brand with nearly three decades of market history and university research collaborations behind it.
• You prefer modular red light therapy with published irradiance you can also use outside the sauna.
• A consultation-style buying process with a dealer network suits you better than direct-to-consumer checkout.

Choose Sun Home if

• You want the deepest named-lab paper trail in the comparison: dated EMF and EPA-method VOC reports you can actually read.
• You want red light therapy factory-integrated into the cabin with dual-tower coverage as standard equipment.
• You are placing the sauna outdoors and want a no-cover, no-wood-maintenance aluminum exterior.
• You want published cart pricing, published maximum temperatures, and a native app with guided session content.

Category tally

We deliberately publish category verdicts rather than a single blended score: weighting is a personal decision, and a buyer who puts warranty labor first should reach a different conclusion than one who puts lab documentation first. For sizing questions before you commit to either brand, see our guide to what size sauna you need, and for the wider field see our sauna brand rankings.

Frequently asked questions

Sources and verification

• Sun Home Equinox 2, Eclipse 2, and Luminar 2 product pages, sunhomesaunas.com (specifications and promotional pricing, accessed August 20, 2026)
• Vitatech Electromagnetics EMF survey, January 2025 (fluxgate magnetometer methodology, 0.3–0.9 mG at 3 ft seated)
• VERT Environmental Project #66958 cabin-air sample, April 2, 2026, analyzed by AIHA-accredited LA Testing under EPA Method TO-15 (27 µg/m³ TVOC); adhesive screen with no formaldehyde or BTEX above reporting limits
• U.S. design patent D1,079,961, granted June 2025 (Luminar aluminum exterior design)
• Clearlight Sanctuary 2 and Sanctuary Outdoor 2 product pages, infraredsauna.com (accessed August 20, 2026)
• Clearlight published price list and upgrades pricing, infraredsauna.com (accessed August 20, 2026)
• Clearlight FAQ and new-owner guide, infraredsauna.com (115–125°F typical cabin air documentation, accessed August 20, 2026)
• Clearlight service portal warranty documentation, service.infraredsauna.com (labor coverage terms and outdoor cover requirement, accessed August 20, 2026)
• Authorized-dealer listings for Clearlight Sanctuary pricing and EMF documentation (accessed August 20, 2026)
• Independent editorial coverage: Forbes, Fortune, Garage Gym Reviews (Sun Home category coverage and instrumented temperature observations)