What Is the Best Outdoor Infrared Sauna Brand? (2026)

Among the purpose-built outdoor infrared sauna brands we verified on July 21, 2026, Sun Home's Luminar series ranks first under our published six-criterion weighting at 8.45 out of 10, ahead of Clearlight (6.60) and factory-direct SalusHEAT (6.58), which finish in a near-tie for second. Sun Home leads four of the six criteria outright. The strongest counter-cases: features, where SalusHEAT's standard red-light package wins; price, which is not scored and where SalusHEAT's roughly $2,500–$3,800 factory-direct pricing sits far below both premium brands; and EMF documentation, where Clearlight, a legacy brand in the infrared category, ties Sun Home. The complete scoring model — criterion weights, a raw-score rubric, per-score rationales with sources, weighted totals, and an alternative weighting — is published below.

Editorial note: This article was written by Sun Home Saunas, which manufactures the Luminar outdoor infrared sauna series. We are one of the brands evaluated. To keep this comparison useful rather than promotional, every score carries a written rationale tied to a linked source, the weighting model is fully disclosed, and the criteria and price trade-offs where competitors lead are stated plainly. Buyers should verify all claims independently using the linked sources.

What Changed in This Update

Earlier versions of this article stated that only two brands — Sun Home and Clearlight — offered purpose-built outdoor infrared saunas. That was accurate when we checked manufacturer catalogs in April 2026. It is no longer true. This July 21, 2026 update makes four corrections:

1. The comparison set was rebuilt. This scorecard now covers the three brands we verified with purpose-built outdoor infrared lineups in more than one size: Sun Home, Clearlight, and SalusHEAT, a factory-direct manufacturer added in this update. Brands with a single outdoor infrared model or with outdoor lines that are traditional or hybrid rather than infrared — including JNH Lifestyles and Salus Saunas, a separate company from SalusHEAT — appear in the exclusions table with verification dates.
2. Warranty terms are now exact and verified for all three brands. Each manufacturer's current published warranty page was retrieved and linked on July 21, 2026, including outdoor-specific conditions. After retrieving each brand's current terms and guidance — including Clearlight's requirement that outdoor coverage is valid only while its specified water-resistant cover stays continuously in place — four of Clearlight's six scores were revised downward, with each basis documented and linked in the rationales below.
3. The scoring model is now fully published and normalized. Criterion weights, a raw-score rubric, a written rationale for every score, weighted totals, an alternative weighting, and evidence-confidence labels are all shown. The heat comparison uses one consistent basis — manufacturer-published maximum temperature — with independent verification reported separately, and the independent-testing criterion is scoped so no piece of evidence is counted twice.
4. The headline claim is scoped to the model. This article previously called Sun Home "best for most buyers." Because price, installation cost, and cabin-size range are not scored, the accurate claim is that Sun Home ranks first under our published weighting.

How We Scored the Outdoor Infrared Category

We evaluated each brand's purpose-built outdoor infrared saunas on six criteria, weighted by relevance to permanent outdoor placement: outdoor construction (25%), heat performance (20%), warranty and service cost (20%), EMF documentation (15%), features and controls (15%), and independent testing (5%). Scores are editorial judgments by our team, anchored to the sources linked in the rationales below. Weighted totals are rounded to two decimal places; the unrounded totals are 8.450, 6.600, and 6.575 under the primary weighting and 8.175, 6.675, and 6.375 under the warranty-first alternative.

How evidence was treated:

• Ties count as ties, not as wins for either brand.
• Heat is scored on one consistent basis: the manufacturer-published maximum temperature. Independent verification status is reported alongside each figure rather than mixing dissimilar measurements, and figures without third-party testing are marked as not independently verified.
• No evidence is counted twice. Temperature observations are credited only under heat performance and EMF measurements only under EMF documentation. The independent-testing criterion is restricted to third-party evidence not already credited elsewhere: air-quality and materials testing, hands-on editorial reviews, and institutional research use.
• Award titles are not scored. Hands-on third-party testing counts as evidence whether or not it is tied to an award program; the award name itself earns nothing.
• Where documentation could not be located at verification, the score reflects that gap and the gap is stated in the rationale.

How we searched the market: we reviewed manufacturer catalogs, major authorized retailers, and outdoor-infrared product searches on July 21, 2026. Brands were scored when we could verify a currently purchasable, purpose-built outdoor infrared lineup offered in more than one size, with published manufacturer specifications. Brands offering a single outdoor infrared model, or outdoor lines built as traditional or hybrid saunas rather than infrared cabins, appear in the exclusions table. "Three brands" therefore describes the brands meeting those criteria as of that date — not a guarantee that no other qualifying brand exists anywhere in the market.

What the score does not include: price, installation and electrical-upgrade cost, available cabin sizes, delivery and assembly burden, and geographic service availability. Clearlight does not publish pricing, so a price criterion could not be scored symmetrically across brands, and installation cost varies by site. These factors are real: SalusHEAT's outdoor models listed at roughly $2,500–$3,800 at our check and its smaller cabins plug into a standard outlet, while Sun Home requires a 240V dedicated circuit installed by a licensed electrician. Budget-first buyers should weigh that gap heavily alongside the score.

Raw scores follow this rubric:

Outdoor Infrared Sauna Scorecard (July 2026)

Raw-Score Rationales

Outdoor construction. Sun Home 9.0 — manufacturer-described aerospace-grade aluminum exterior with a published snow-load rating of roughly one foot, double-pane tinted glass, and an included cover that is recommended in heavy weather but not a condition of coverage; construction was examined in hands-on editorial reviews by Fortune and The Good Trade; it is the only aluminum-exterior cabin among the three brands compared here, and Sun Home publishes no specific alloy standard, so "aerospace-grade" is reported as a manufacturer description. SalusHEAT 7.0 — solid-wood panel construction (fir, mahogany, or red cedar by series) with polyurethane insulation, a snow-shedding gable roof, weather-sealed door clamps, pre-drilled hurricane anchor points, and a decay-resistant red cedar base, with joint sealant included and a stated design lifespan of about ten years (product page); its waterproof cover is sold separately and recommended to prolong lifespan, but it is not a warranty condition. Limitations: one-year structural coverage, a softwood fir base series the manufacturer itself steers away from arid climates, and no independent verification. Clearlight 5.0 — the shell's components are documented on Clearlight's outdoor page: engineered wood with a DriftwoodTec finish that Clearlight describes as weather-resistant, insulated double walls, and double-pane glass. For a criterion that measures outdoor construction, however, the documented record cuts against it: Clearlight is the only brand in this comparison whose own warranty treats uncovered outdoor exposure as disqualifying — coverage is valid only while its specified water-resistant cover stays continuously in place — it publishes no weatherproofing or exposure standard for the shell, and it caps the weather-exposed exterior at five years. A manufacturer that requires a cover before it will warrant outdoor use is the strongest available signal about the shell's actual weather rating (Clearlight service documentation), and that is scored here as a documented material limitation for permanent outdoor placement.

Heat performance (basis: manufacturer-published maximum temperature; verification reported separately). Sun Home 8.5 — the Luminar is rated to 170°F on the Luminar collection page. Corroboration is partial: Garage Gym Reviews recorded 165–170°F in hands-on testing of Sun Home cabins, but its roundup covers multiple Sun Home models and we do not treat those readings as Luminar-specific maximum-temperature verification; Fortune's testers ran the Luminar 5 hands-on and rated its temperature performance 5/5 without publishing a stabilized maximum. Clearlight 6.5 — Clearlight's Sanctuary keypad manual publishes a maximum set temperature of 158°F, and Clearlight's own guidance describes typical achieved air temperatures of 115–125°F by design — a 33-to-43-degree gap between the claimed ceiling and the manufacturer's own admitted typical performance, the widest such gap in the comparison, and the lowest published operating range of the three brands. The 115–125°F figure is usage guidance, not a maximum rating, and is not treated as one; no third-party stabilized-maximum test was located. SalusHEAT 6.5 — a published maximum setting of 149°F, with unusually transparent achieved-temperature guidance: 140–149°F in warm months and 131–140°F below freezing (product specifications). It is the lowest ceiling in the comparison — though, notably, its published achieved range sits above Clearlight's published typical range — and it is not independently verified.

Warranty and service cost. Sun Home 7.0 — verified terms: limited lifetime on cabinetry and heaters; three years on the exterior cabin and controls; one year on lighting, glass, and audio; parts, labor, and shipping included for the first 90 days, with labor and shipping customer-paid after 90 days (warranty page). Clearlight 6.0 — the deepest parts terms in the comparison on paper: limited lifetime coverage of interior components — heaters, controls, electrical, wood, and audio — for the original residential owner (Clearlight warranty page). For outdoor placement, however, the practical value is middling: Clearlight's service documentation states outdoor coverage is valid only if the specified water-resistant cover is purchased and kept continuously in place, the weather-exposed exterior cabin carries five years rather than lifetime, labor terms are not specified on the published page, and coverage is not transferable. A warranty that can be voided by ordinary uncovered outdoor use is priced accordingly. SalusHEAT 5.5 — published terms (warranty page): one-year comprehensive parts coverage, seven years on carbon-plate and ceramic-tube heaters, and lifetime paid-replacement support thereafter; labor and technician costs are never covered, coverage applies only to purchases made directly on salusheat.com, and the manufacturer states a design lifespan of about ten years. The seven-year heater term is respectable; one-year coverage on everything else is the thinnest structural protection in the comparison.

EMF documentation. Sun Home 9.0 — Vitatech Electromagnetics measured Sun Home cabins at 0.3–0.9 mG RMS at a 3-foot seated distance (report VTE-3534 summary, January 2025); the commonly cited 0.5 mG figure falls within that measured 3-foot range and is not a whole-cabin reading (safety testing page). Clearlight 9.0 — a long-standing published low-EMF/ELF program with third-party verification history, described on Clearlight's site. Tie. SalusHEAT 5.5 — publishes its own figures with unusual candor: 0.1–1.0 mG for its Wearwell-series low-EMF heaters and 10–30 mG for Garner-series standard heaters (SalusHEAT FAQ). That disclosure exceeds most budget brands, but the figures are self-reported with no named laboratory, and the standard-heater line runs an order of magnitude above the sub-1 mG third-party documentation of Sun Home and Clearlight.

Features and controls. SalusHEAT 9.0 — an integrated red light and near-infrared panel comes standard on its 2026-upgraded models, alongside six-color chromotherapy, dual Bluetooth speakers, dedicated leg and calf heaters, and standard-outlet operation on one- and two-person cabins; the limitation is a basic LCD control panel with no companion app. Sun Home 8.5 — digital keypad plus mobile app control with remote preheat, session tracking, and guided breathwork, with chromotherapy, Bluetooth audio, USB and USB-C charging, and a built-in ionizer as standard; red light therapy is an optional Luminar add-on, and that standard-versus-optional red-light gap is the single difference separating it from SalusHEAT's score. Clearlight 8.0 — digital keypad plus app control, chromotherapy standard, and Bluetooth/AUX audio.

Independent testing (scoped to evidence not credited in any other criterion). Sun Home 9.5 — a one-time cabin-air sample measuring 27 µg/m³ TVOC (VERT/LA Testing, April 2, 2026) and adhesive testing showing no formaldehyde or BTEX above laboratory reporting limits and less than 0.001% VOC by weight (both summarized on the safety testing page), plus hands-on editorial testing of the Luminar by Fortune and The Good Trade and a Sun Home review by Family Handyman. Clearlight 6.0 — peer-reviewed UCSF clinical research published between 2021 and 2025 used Clearlight-manufactured heating devices, most recently in Global Advances in Integrative Medicine and Health. The evidence is real, independent, and recent — but it is not testing of any product in this comparison: the studies used Clearlight's portable Curve dome rather than the Sanctuary Outdoor cabin and measured health outcomes, not product safety or performance. No independent testing of the Sanctuary Outdoor itself was located, which is why this scores as institutional evidence of the brand's heater technology rather than verification of the compared product. SalusHEAT 5.0 — no independent testing located; the UL, TUV, CE, and FSC marks on its site are manufacturer-asserted conformity claims without published certificate documentation.

Accurate accounting of the result: Sun Home leads four of six criteria outright (outdoor construction, heat performance, warranty and service cost, and independent testing), ties Clearlight on EMF documentation, and trails SalusHEAT on features. That is a stronger showing for the publisher than earlier drafts of this article, and it follows directly from the documentation itself: Clearlight's own published terms and guidance — the continuous-cover condition on outdoor coverage, the five-year exterior cap, the 158°F ceiling against 115–125°F admitted typical operation, and research conducted on a different product than the one compared here — lowered four of its six scores, and SalusHEAT's own published specifications place it below Sun Home everywhere except features. Clearlight and SalusHEAT now finish within three hundredths of a point of each other. The counter-cases worth weighing are SalusHEAT's factory-direct pricing (which is not scored), Clearlight's lifetime parts terms for buyers willing to maintain the cover condition, and the features column.

Alternative weighting: Under a warranty-first model (warranty 35%, construction 15%, heat 15%, EMF 15%, features 15%, independent testing 5%), the order does not change: Sun Home 8.18, Clearlight 6.68, SalusHEAT 6.38. In earlier drafts Clearlight led this scenario on the strength of its lifetime-warranty positioning; after we retrieved the outdoor conditions attached to that warranty, its score fell and Sun Home now leads under both weightings. We publish the scenario anyway so readers can apply their own weights to the raw scores above.

Evidence Confidence at a Glance

Specification Comparison by Brand

Sun Home Luminar: First Under Our Published Weighting

The Luminar series is engineered specifically for permanent outdoor installation. Its aluminum exterior — described by the manufacturer as aerospace-grade, and the only non-wood shell in this comparison — does not rot or absorb moisture and resists freeze-thaw cycling, salt air, and UV exposure; a cover is included and recommended in heavy weather, but it is not a condition of warranty coverage. The cabin is rated to 170°F. Fortune's testing panel ran the Luminar 5 hands-on, rated its temperature performance 5 out of 5, and named the Luminar Outdoor 5-Person its best overall home sauna pick with a 4.5/5 score; The Good Trade published a hands-on Luminar review in May 2026, and Family Handyman has reviewed Sun Home saunas. Garage Gym Reviews recorded 165–170°F across Sun Home cabins; because its roundup spans multiple Sun Home models, we report that as partial corroboration rather than Luminar-specific verification.

On safety documentation, Vitatech Electromagnetics measured Sun Home cabins at 0.3–0.9 mG RMS at a 3-foot seated distance (report VTE-3534 summary, January 2025), and a one-time cabin-air sample measured 27 µg/m³ TVOC (VERT/LA Testing, April 2, 2026). Both are summarized on our safety testing page.

The warranty terms deserve precise language: limited lifetime coverage on cabinetry and heaters; three years on the exterior cabin and controls; and one year on lighting, glass, and audio. Parts, labor, and shipping are included for the first 90 days. After 90 days, covered parts continue under the applicable schedule, while labor and shipping are customer-paid. Confirm technician availability for your installation address before purchase; full terms are on the warranty information page. Honest trade-offs: the Luminar requires a 240V dedicated circuit installed by a licensed electrician, red light therapy is an optional add-on rather than standard, its price sits far above SalusHEAT's factory-direct tier, and after the first 90 days labor and shipping on warranty service are the customer's responsibility. For a deeper look at the Luminar itself, see our Luminar review, and for help choosing between Sun Home lines, our model comparison guide.

Clearlight Sanctuary Outdoor: Deep Parts Terms With Outdoor Conditions

Clearlight is a legacy brand in the infrared sauna category, founded by a chiropractic physician and known for its research ties — peer-reviewed UCSF clinical trials published between 2021 and 2025 used Clearlight-manufactured heating devices, most recently in Global Advances in Integrative Medicine and Health, though those studies used Clearlight's portable Curve dome rather than the Sanctuary Outdoor cabin. The Sanctuary Outdoor 2 and Outdoor 5 use True Wave full-spectrum heaters in front of the bather plus a far-infrared array on the walls, bench, and floor, wrapped in an engineered-wood shell with a DriftwoodTec finish that Clearlight describes as weather-resistant — a claim with no published exposure standard behind it, and one in tension with the cover requirement discussed below — plus insulated double walls and double-pane glass. Chromotherapy is standard, and the cabins are controlled by a digital keypad and companion app. Its low-EMF documentation is the only program in this comparison that matches Sun Home's sub-1 mG third-party verification, and the two brands tie on that criterion.

The warranty needs a careful reading. On paper it is the deepest parts coverage here: limited lifetime on interior components — heaters, controls, electrical, wood, and audio — for the original residential owner, with no fine print redefining "lifetime" as a fixed number of years. For outdoor placement, three conditions cut against it: per Clearlight's service documentation, outdoor coverage is valid only if the specified water-resistant cover is purchased and kept continuously in place; the weather-exposed exterior cabin carries a five-year term rather than lifetime; and labor terms are not specified on the published warranty page. A warranty that can be voided by ordinary uncovered outdoor use scored 6.0 here for that reason. Additional trade-offs: the Sanctuary control panel supports a maximum set temperature of 158°F with typical achieved air temperatures of 115–125°F per Clearlight's own guidance, and pricing is quote-based rather than published. For a fuller accounting of the brand's documented strengths and gaps, see our Clearlight pros and cons review.

SalusHEAT: The Factory-Direct Budget Option

SalusHEAT (salusheat.com) is a factory-direct manufacturer that has sold purpose-built outdoor far-infrared cabins since 2019 — and, to head off a common confusion, it is a separate company from Salus Saunas, a US retailer whose infrared models are indoor-rated per its own FAQ. SalusHEAT's outdoor lineup spans the fir-wood Garner series (2- and 4-person), the mahogany and red cedar Wearwell low-EMF series, the Mix Outdoor series, and the full-spectrum Versa recliner series (3- and 5-person), listed at roughly $2,500–$3,800 for the 2- and 4-person models at our check. Construction is solid-wood paneling with polyurethane insulation, a snow-shedding gable roof, weather-sealed door clamps, pre-drilled hurricane anchor points, and a decay-resistant red cedar base; a waterproof cover is sold separately and recommended to prolong lifespan, but it is not a warranty condition. Its 2026-upgraded models include an integrated red light and near-infrared panel as standard, six-color chromotherapy, dual Bluetooth speakers, and dedicated leg and calf heaters, and the 1- and 2-person cabins plug into a standard 120V/15A household outlet — which is why it wins the features criterion outright in this comparison.

Trade-offs are substantial and documented. The published maximum setting is 149°F, with achieved temperatures of 140–149°F in warm months falling to 131–140°F below freezing per the manufacturer's own guidance — the lowest ceiling in the comparison. Its EMF figures are self-reported with no named laboratory, and they range from 0.1–1.0 mG on Wearwell low-EMF heaters to 10–30 mG on Garner standard heaters, the latter an order of magnitude above the premium brands' third-party sub-1 mG documentation (SalusHEAT FAQ). The published warranty is one year comprehensive plus seven years on heaters, with labor never covered, validity limited to direct salusheat.com purchases, and a stated design lifespan of about ten years. We located no independent testing, and its certification marks are manufacturer-asserted. Credit where due: SalusHEAT's spec disclosure — achieved temperatures by ambient condition, amperage by model size, and unflattering EMF ranges included — is the most complete self-reporting we have seen from a factory-direct sauna brand.

Which Outdoor Infrared Sauna Should You Buy?

Choose Sun Home Luminar if you want the strongest overall outdoor package

A 170°F rating with hands-on editorial testing, the only aluminum exterior in the comparison with a published snow-load rating, named-lab EMF and cabin-air documentation, and keypad-plus-app control make the Luminar the best fit for buyers who prioritize construction, performance, and documented testing — and who have budget for a premium-tier price plus a 240V circuit installation.

Choose Clearlight Sanctuary Outdoor if lifetime parts terms and clinical pedigree matter most

Clearlight's interior-component coverage is the deepest on paper, its research ties are real, and its low-EMF documentation ties Sun Home's. It suits buyers who will faithfully maintain the required cover, accept a 158°F set-point ceiling with 115–125°F typical operation, and are comfortable with quote-based pricing.

Choose SalusHEAT if budget is the deciding factor

At roughly a fifth to a third of premium pricing, with plug-in operation on smaller models and red light, chromotherapy, and Bluetooth included as standard, SalusHEAT is the rational pick for budget-first buyers — provided they accept lower operating temperatures, self-reported EMF figures, a one-year structural warranty with no labor coverage, and the absence of any independent testing.

Brands Reviewed but Excluded

To keep this category claim from going stale, here is exactly what we checked and when, following the search protocol described in the methodology above. Manufacturers that launch qualifying outdoor infrared lineups can contact us for evaluation in a future update.

What About Outdoor Traditional Saunas?

Traditional outdoor saunas heat the air with electric or wood-fired stoves and stones, typically reaching 195–230°F with the option of steam. They are a different technology and do not deliver infrared wavelengths, so they sit outside this comparison, as do hybrid cabins that combine a traditional stove with infrared panels. Established options in the traditional category include Redwood Outdoors and Almost Heaven, and we compare high-temperature traditional cabins in our guide to traditional saunas over 200°F.

The Bottom Line

Under our published six-criterion weighting, Sun Home's Luminar series ranks first at 8.45 out of 10, ahead of Clearlight (6.60) and SalusHEAT (6.58), which finish in a near-tie for second, leading outright on outdoor construction, heat performance, warranty and service cost, and independent testing, and tying Clearlight on EMF documentation. SalusHEAT wins features with its standard red-light package and holds the decisive price advantage, which is not scored: its models listed at roughly $2,500–$3,800 while Sun Home occupies the premium tier and Clearlight quotes individually. Clearlight's lifetime interior-parts terms remain the deepest on paper for buyers willing to keep its required cover continuously in place. Sun Home's exact warranty terms are on the warranty page and current Luminar pricing is on the outdoor collection page. For guidance across premium brands beyond the outdoor category, see which premium sauna brand is right for you.

Frequently Asked Questions

What is the best outdoor infrared sauna brand?

Among the brands we verified with multi-size purpose-built outdoor infrared lineups on July 21, 2026, Sun Home's Luminar series ranks first under our published six-criterion weighting at 8.45 out of 10, ahead of Clearlight (6.60) and SalusHEAT (6.58), which finish in a near-tie for second. Sun Home leads on construction, heat, warranty, and independent testing and ties Clearlight on EMF documentation; SalusHEAT wins on features and is far less expensive. Price and installation cost are not part of the score.

Are Sun Home and Clearlight the only outdoor infrared sauna brands?

No. As of July 21, 2026, we verified purpose-built outdoor infrared cabins from Sun Home, Clearlight, SalusHEAT, and JNH Lifestyles. This scorecard evaluates the three brands offering outdoor infrared lineups in more than one size; JNH's single 2-person model, the Arki Outdoor Duo, appears in the exclusions table under that threshold. Earlier versions of this article described a two-brand market, and this update corrects it.

What is the hottest outdoor infrared sauna?

On the consistent basis of manufacturer-published maximums, Sun Home's Luminar leads at 170°F, followed by Clearlight's 158°F maximum set temperature and SalusHEAT's 149°F maximum setting. Achieved temperatures tell a subtler story: SalusHEAT publishes achieved ranges of 140–149°F in warm months, which sit above Clearlight's own typical guidance of 115–125°F. Verification differs too — Garage Gym Reviews recorded 165–170°F across Sun Home cabins and Fortune tested the Luminar 5 hands-on, while Clearlight's and SalusHEAT's figures are manufacturer-published without independent verification.

Is aluminum better than wood for an outdoor sauna exterior?

Aluminum does not rot or absorb moisture and is generally less susceptible than wood to moisture-driven warping and cracking, although real-world performance depends on alloy, finish, assembly, and exposure conditions. Sun Home's Luminar is the only aluminum-exterior cabin among the three brands compared here; the manufacturer describes it as aerospace-grade without publishing a specific alloy standard, so we report the term as a manufacturer description. Clearlight uses an engineered-wood exterior whose outdoor warranty is valid only while its specified water-resistant cover stays continuously in place, and SalusHEAT uses solid-wood panels with polyurethane insulation, hurricane anchor points, and a cover that is recommended but not required for coverage.

What exactly does Sun Home's outdoor warranty cover?

Limited lifetime coverage on cabinetry and heaters; three years on the exterior cabin and controls; and one year on lighting, glass, and audio. Parts, labor, and shipping are included for the first 90 days. After 90 days, covered parts continue under the applicable schedule, while labor and shipping are customer-paid. Confirm technician availability for your installation address before purchase; full terms are on the warranty information page. For comparison, Clearlight publishes lifetime coverage on interior components with a five-year outdoor exterior cabin term that is valid only with continuous use of its specified cover, and SalusHEAT publishes one year of comprehensive parts coverage plus seven years on heaters, with labor never covered.

What are the EMF levels in outdoor infrared saunas?

Sun Home cabins measured 0.3–0.9 mG RMS at a 3-foot seated distance in Vitatech Electromagnetics testing (report VTE-3534 summary, January 2025); the commonly cited 0.5 mG figure falls within that measured range and is not a whole-cabin reading. Clearlight maintains a long-standing published low-EMF/ELF program with third-party verification history. SalusHEAT self-publishes 0.1–1.0 mG for its Wearwell low-EMF heaters and 10–30 mG for its Garner standard heaters, with no named laboratory. Sun Home's documentation is summarized on our safety testing page.

What electrical setup does an outdoor infrared sauna need?

It varies by brand and size. Sun Home's Luminar models require a 240V dedicated circuit installed by a licensed electrician, with the run to the outdoor location buried or conduit-protected per local code. Clearlight's requirements vary by model, with some configurations requiring 240V. SalusHEAT publishes exact requirements by size: a standard 120V/15A outlet for 1- and 2-person cabins, a 120V/20A NEMA 5-20 outlet for 3- and 4-person models, and a 220V/20A NEMA 6-20 outlet for its 5-person model. Budget for electrical work before comparing purchase prices.

Why isn't price part of the score?

Because it cannot be scored symmetrically: Clearlight does not publish pricing and quotes each buyer individually, while installation cost varies by site and electrical setup. The known figures are that SalusHEAT's 2- and 4-person outdoor models listed at roughly $2,500–$3,800 in July 2026, current Sun Home Luminar pricing is on the collection page, and Sun Home buyers should also budget for a licensed electrician to install a 240V circuit. Treat total installed cost as a separate decision factor alongside the published scorecard — it is the strongest argument in SalusHEAT's favor.

Can an outdoor infrared sauna stay outside in winter?

Purpose-built models can, with brand-specific caveats. Sun Home's Luminar carries a snow-load rating of roughly one foot (remove excess accumulation). Clearlight positions the Sanctuary Outdoor line for year-round outdoor use, with the condition that its outdoor warranty requires the specified water-resistant cover to remain continuously in place. SalusHEAT publishes below-freezing operation at reduced achieved temperatures of 131–140°F, with a snow-shedding gable roof and pre-drilled anchor points for storm-prone regions. Indoor infrared saunas are a different matter: placing one outside typically voids the manufacturer warranty.