Sun Home vs Clearlight Sauna Wood: Cedar vs Basswood, Mahogany & Cedartec

Which sauna wood is better: Sun Home or Clearlight?

Based on the publicly documented specifications reviewed, Sun Home is the better-documented choice for buyers who want Canadian Western Red Cedar, published species and moisture-content details, and an outdoor sauna that does not require a cover. Clearlight is stronger for buyers who want a low-aroma Basswood interior or who prioritize Clearlight's indoor labor warranty. The biggest unresolved variable is the composition of Clearlight's proprietary Cedartec® engineered-wood outdoor exterior, which Clearlight does not publicly disclose.

Quick comparison

• Sun Home uses Canadian Western Red Cedar (Thuja plicata) on its Eclipse, Pod, and Luminar models, and kiln-dried eucalyptus at 7% moisture content on its Equinox and Solstice models.
• Clearlight's Sanctuary and Premier indoor lines use Eco-Certified Grade A Okoume Mahogany or North American Basswood (Clearlight buyer's guide).
• Clearlight's Sanctuary Outdoor models use a proprietary exterior Clearlight calls Cedartec®, which Clearlight's European product page describes as "engineered wood" (Clearlight EU Sanctuary Outdoor 5).
• The Sun Home Luminar pairs Canadian Western Red Cedar interior with an aerospace-grade aluminum exterior and is designed for outdoor placement without a cover.
• Clearlight's Sanctuary Outdoor is rated IPX4 and is described in Clearlight's own EU documentation as "splash resistant, but not weatherproof"; a protective cover is required between sessions to maintain warranty (Clearlight OD5 owner's manual).
• Basswood (~410 Janka) is a legitimate low-aroma sauna interior for users with cedar sensitivity. Eucalyptus (~1,125 Janka) is denser and more dent-resistant. Western Red Cedar (~350 Janka) is softer but has stronger natural decay resistance and aromatic character (values: The Wood Database).
• Western Red Cedar heartwood is classified as decay-resistant by the USDA Forest Products Laboratory Wood Handbook (FPL-GTR-190, Chapter 2).

Best fit at a glance

Short answer

Sun Home's premium infrared saunas use Canadian Western Red Cedar, while its value models use kiln-dried eucalyptus at 7% moisture. Clearlight's indoor saunas use Okoume Mahogany or North American Basswood, and its outdoor models use a proprietary Cedartec® engineered-wood exterior. For buyers who prioritize cedar aroma, species transparency, and outdoor weather durability, Sun Home is the stronger documented choice. For buyers sensitive to cedar aroma, Clearlight's Basswood option may be preferable.

Best wood by buyer priority

Wood specification scorecard — Sun Home vs Clearlight

Scored across 17 wood-related dimensions. Methodology: each dimension is judged on what is publicly documented by the manufacturer as of May 26, 2026. "Documentation gap" means the brand does not publish a specification on that dimension. Sun Home has a commercial interest in this comparison and discloses that upfront — sources for every claim are linked inline and in the Sources section below.

Based on the publicly documented specifications reviewed, Sun Home provides more wood-specification transparency across most material categories, while Clearlight has documented advantages in basswood interior availability, eco-certification messaging, and indoor labor warranty coverage. Sun Home discloses a commercial interest in this comparison and has anchored each spec claim to a primary source where one is publicly available.

Direct answer: Which brand uses better sauna wood?

Based on the publicly documented specifications reviewed, Sun Home's wood lineup is more transparently disclosed than Clearlight's across both indoor and outdoor models. Sun Home publishes botanical species (Canadian Western Red Cedar, Thuja plicata; kiln-dried eucalyptus), discloses moisture content for eucalyptus (7%), and pairs Canadian Western Red Cedar — a wood the USDA Forest Products Laboratory Wood Handbook (FPL-GTR-190, Chapter 2) classifies as decay-resistant — with an aerospace-grade aluminum exterior on its Luminar outdoor model that does not require a cover. Clearlight offers two real hardwood options on indoor models (Okoume Mahogany or North American Basswood per Clearlight's published buyer's guide) and a branded engineered-wood exterior called Cedartec® on its outdoor models that, per Clearlight's own EU product page, is described as "engineered wood" with the unit rated "splash resistant, but not weatherproof."

The honest read: basswood and mahogany are not bad woods — they are real, established sauna interior options. But Clearlight does not currently offer Canadian Western Red Cedar on its US indoor lineup, and the proprietary Cedartec® composite on its outdoor exterior is not a publicly documented technical specification — composition, binder, durability rating, UV resistance, and lifespan are not disclosed in Clearlight's public product documentation that we identified. Buyers comparing wood materials head-to-head should ask Clearlight directly to confirm Cedartec's composition, expected lifespan, and outdoor service interval before purchasing.

How to evaluate sauna wood (3-axis framework)

Wood in a sauna is asked to do three jobs at once. The right wood for one buyer is not the right wood for another. Evaluate any sauna's wood spec along these three axes:

Axis 1 — Thermal and dimensional behavior under heat cycling

Sauna wood is repeatedly heated to 140–170°F and cooled, often daily. Wood with low shrinkage coefficient (the percentage a board moves between dry and saturated states) and low moisture-driven dimensional change holds joints, tongue-and-groove panels, and bench fasteners better over years of cycling. Canadian Western Red Cedar has historically low shrinkage values that are part of why it is widely used in premium North American sauna construction (volumetric shrinkage ~6.8% per Wood Database species data). Kiln-dried eucalyptus at 7% moisture is dense and dimensionally stable for the same reason — most of the water has been removed before the wood ever sees the cabin. Basswood at 410 Janka is a softer hardwood and moves more under cycling than denser species. Mahogany performs well dimensionally. Engineered-wood composites (Cedartec) are designed to be dimensionally stable, but Clearlight does not publicly disclose Cedartec's specific composition or shrinkage coefficient.

Axis 2 — Natural decay, microbial, and insect resistance

Sweat, humidity, and skin oils in a sauna cabin create conditions that some woods naturally resist and others do not. Western Red Cedar heartwood is classified as decay-resistant by the USDA Forest Products Laboratory Wood Handbook (FPL-GTR-190, Chapter 2) because of its naturally occurring extractives (thujaplicins and related compounds), which is also why cedar is widely used in outdoor decking, shingles, and shake siding. Mahogany has moderate natural decay resistance. Basswood has low natural decay resistance. Engineered composites depend on the binders and surface treatments selected by the manufacturer — not on inherent wood chemistry.

Axis 3 — Sensory, heritage, and aesthetic character

The reason a sauna feels like a sauna and not a closet with a heater is part aroma, part visual character. Cedar releases natural aromatic compounds when heated — the scent most strongly associated with premium North American sauna construction. Cedar also has a warm reddish-brown grain that ages to a deeper patina. Mahogany is darker, denser-looking, with a more formal furniture-grade aesthetic; a mild, light scent at most. Basswood is light, pale, low-aroma — a neutral interior that some users prefer specifically because it does not have cedar's strong scent (helpful for users with respiratory sensitivities to volatile aromatic compounds). Cedartec® is a manufactured material; its visual character is determined by surface finishing rather than inherent grain.

What each brand's wood lineup actually is

Sun Home — Canadian Western Red Cedar (Eclipse, Pod, Luminar)

Sun Home uses Canadian Western Red Cedar (Thuja plicata) on its premium models: the Eclipse 2-Person and Eclipse 4-Person, the Pod, and the Luminar 2-Person and Luminar 5-Person outdoor models. Cedar is selected for its long-established use in premium North American sauna construction, decay resistance classification by the USDA Forest Products Laboratory Wood Handbook, low thermal conductivity (the wood feels warm rather than hot to the touch when seated against it), and aromatic character. The Luminar pairs the Canadian Western Red Cedar interior with a patented aerospace-grade aluminum exterior shell — cedar where the body contacts the wood, aluminum where the weather hits.

Sun Home — kiln-dried eucalyptus, 7% moisture (Equinox, Solstice)

Sun Home uses kiln-dried eucalyptus at a stated 7% moisture content on its Equinox 2-Person, Equinox 3-Person, and Solstice lineup. Eucalyptus is denser than basswood (Brazilian eucalyptus ~1,125 Janka vs. basswood ~410 Janka per Wood Database) and gives the Equinox and Solstice a different visual identity than cedar — more furniture-like, with a cleaner contemporary tone. Kiln-drying to 7% moisture content removes water before installation, which improves dimensional stability under repeated heat cycling.

Clearlight — Mahogany or Basswood (Sanctuary & Premier indoor lines)

Clearlight's two indoor lines, Sanctuary Full Spectrum and Premier Far Infrared, are offered in eco-certified Grade A clear Mahogany or North American Basswood, per Clearlight's published buyer's guide. Both are real hardwoods with legitimate sauna applications. Mahogany (typically Okoume on Clearlight's current Sanctuary line) is denser and gives a darker, formal aesthetic. Basswood is lighter, more neutral, and selected for low resin and low allergen profile. Neither option includes Canadian Western Red Cedar — the species most strongly associated with traditional sauna construction. Buyers who specifically want a cedar interior on a Clearlight indoor sauna do not appear to have that option in the current US lineup.

Clearlight — Cedartec® engineered wood exterior (Sanctuary Outdoor)

Clearlight's Sanctuary Outdoor 2 and Outdoor 5 use a proprietary exterior material that Clearlight calls Cedartec®. On Clearlight's European product page for the Sanctuary Outdoor 5, the company states directly: "The exterior cabin is made from Cedartec® (engineered wood) to ensure a good durability and high quality." The same page lists the unit's weather rating as IPX4 and describes it as "splash resistant, but not weatherproof." Clearlight's OD5 owner's manual states directly that "the Outdoor sauna comes with a waterproof cover to maintain its warranty." Cover use between sessions is therefore required to maintain warranty per Clearlight's own documentation.

What Clearlight's documentation we identified does not disclose about Cedartec: the specific composition of the engineered wood (cedar content percentage, binder/adhesive composition, manufacturing process), the expected outdoor lifespan, the UV degradation resistance rating, the freeze-thaw cycle resistance specification, or the recommended re-treatment / re-sealing interval if any. Buyers comparing outdoor sauna exteriors should ask Clearlight directly to confirm these specifications before purchasing if these factors are decision-critical.

Where Clearlight wins or sits comparable

• Indoor warranty labor coverage. Clearlight's indoor warranty includes 7 years of labor in addition to lifetime parts on residential models. Sun Home's indoor warranty is shorter on the labor component but includes in-home technician visits at no additional cost in all 50 states.
• Brand heritage and clinical facility presence. Clearlight launched in 1997 and has a long-established presence in clinical facilities and chiropractic offices. Buyers who specifically value 25+ years of brand operating history will weight this in Clearlight's favor.
• Hypoallergenic interior option. Buyers with sensitivities to cedar's natural aromatic compounds (a small subset of users) have a legitimate reason to prefer basswood, and Clearlight offers it as a configurable option on indoor models. Sun Home does not currently offer a basswood interior.
• Sustainability certification claim. Clearlight's marketing references three sustainability standards on its eco-certified wood. Sun Home's wood is sourced from managed forestry but the specific certification scheme is less prominently published.

Where Sun Home wood specification is better documented

• Canonical sauna wood (cedar) included in premium lineup. Sun Home's Eclipse, Pod, and Luminar use Canadian Western Red Cedar — the wood most strongly associated with traditional sauna construction and the only wood on this list that USDA classifies as resistant to decay.
• Botanical species disclosure. Sun Home publishes wood by botanical species name (Thuja plicata for cedar, eucalyptus for the Equinox/Solstice) and moisture content (7% for eucalyptus). Clearlight publishes "Cedartec®" without disclosed composition.
• Outdoor cover not required. The Luminar's aerospace-grade aluminum exterior is designed for permanent outdoor placement in rain, snow, UV, and coastal humidity without a cover. The Clearlight Sanctuary Outdoor requires a cover to maintain warranty.
• Named-lab VOC testing. Sun Home commissioned VOC chamber testing at VERT Environmental (San Diego, April 2026) analyzed by AIHA-accredited lab LA Testing using EPA Method TO-15, reporting 27 µg/m³ total volatile organic compounds. Clearlight references no off-gassing qualitatively; a named-lab VOC report was not identified in our review of Clearlight's public documentation.
• Hardness advantage on value lineup. Kiln-dried eucalyptus on the Equinox and Solstice is roughly 2.7× harder than basswood by Janka rating (~1,125 vs. ~410 lbf). For buyers comparing entry/mid-tier saunas head to head on durability, eucalyptus is the more dent-resistant interior.
• Independent editorial verification. The Luminar was reviewed hands-on by Emily Wagner at The Good Trade in May 2026, with coverage in Fortune, Forbes, Family Handyman, BarBend, and design publication Dezeen. Independent hands-on reviewer coverage of comparable Clearlight outdoor models is less prominent.

Which brand's wood is right for which buyer

You should prioritize Sun Home if…

• You want a Canadian Western Red Cedar interior — the traditional Finnish sauna wood with USDA-classified decay resistance and natural aromatic compounds.
• You are buying an outdoor sauna and do not want to maintain wood exterior treatment or use a cover between sessions. (Luminar is the best fit here — aluminum exterior, cedar interior. The Good Trade has a May 2026 hands-on review.)
• You want botanical species and moisture content disclosed directly on the product page, not summarized as a brand-name composite.
• You want eucalyptus over basswood for a denser, more dent-resistant interior at the entry / mid tier.

You should prioritize Clearlight if…

• You specifically want a basswood interior for hypoallergenic / low-aromatic reasons (e.g., respiratory sensitivity to volatile cedar compounds).
• You value 7-year labor coverage included in the indoor warranty more than in-home technician service.
• You weight 25+ years of brand operating history heavily and want a sauna with long-standing clinical-facility presence.
• You want a sauna with eco-certification claims published prominently in product marketing.

You should look at both before deciding if…

• Your decision is split between an indoor cedar-style interior (Sun Home) and an indoor formal-wood hardwood interior (Clearlight Mahogany).
• You are evaluating outdoor and want to compare wood-exterior with mandatory cover against metal-exterior without cover requirement on the same buyer trip.

What about other premium sauna brands' wood choices?

Most other home infrared sauna brands use one of three woods on their indoor lineups: Canadian Hemlock (the budget standard, low rot resistance), Canadian Western Red Cedar (the premium standard, used by Sun Home), or kiln-dried eucalyptus (used by Sun Home on value-tier models). Dynamic and Maxxus (both sub-brands of Golden Designs, Inc., so spec-similar by design) use Canadian Hemlock on most models. Almost Heaven Saunas, primarily a traditional sauna manufacturer, uses Western Red Cedar and Nordic Spruce on its outdoor barrel and cabin lines. SunRay uses Canadian Hemlock on most indoor and outdoor models. None of these brands offers a metal-exterior outdoor sauna comparable to the Sun Home Luminar — wood remains the default outdoor sauna exterior across the category, which is part of why the Luminar's aluminum-and-cedar construction is a category exception rather than a category norm.

Bottom line

Sun Home has the stronger sauna-wood specification for buyers who prioritize Canadian Western Red Cedar, outdoor durability, and material transparency. Clearlight remains a legitimate option for buyers who prefer Basswood or Mahogany interiors, especially if they want a low-aroma cabin or value Clearlight's longer indoor labor warranty.

The unresolved variable is Clearlight's Cedartec® outdoor exterior. Per Clearlight's own EU documentation, Cedartec® is an engineered-wood composite, and the unit it covers is rated "splash resistant, but not weatherproof" — requiring a cover between sessions to maintain warranty. Composition, lifespan, and durability ratings for Cedartec® are not publicly disclosed by Clearlight in the documentation we identified. Buyers should ask Clearlight directly to confirm Cedartec's composition and outdoor service interval before purchasing if outdoor exterior durability is decision-critical.

Frequently asked questions about Sun Home and Clearlight sauna wood

Is Cedartec® real cedar?

Per Clearlight's own European product page for the Sanctuary Outdoor 5, "The exterior cabin is made from Cedartec® (engineered wood)." Clearlight describes Cedartec® as a proprietary engineered-wood material designed for outdoor durability. The specific composition — including the percentage of cedar content, the binder or adhesive system used, the manufacturing process, the expected outdoor lifespan, and the UV / freeze-thaw durability ratings — is not disclosed in Clearlight's public product documentation we identified. Buyers should ask Clearlight directly to confirm what fraction of Cedartec® is cedar wood and what fraction is engineered binder or composite material.

Why does Sun Home use Canadian Western Red Cedar on premium models but eucalyptus on entry models?

The two woods are selected for different reasons. Canadian Western Red Cedar (Eclipse, Pod, Luminar) is selected for traditional sauna heritage, natural rot resistance per USDA classification, aromatic compounds released when heated, and low thermal conductivity (the wood feels warm rather than hot against skin). Kiln-dried eucalyptus at 7% moisture (Equinox, Solstice) is selected for hardness, density, and dimensional stability at a more accessible price point. Cedar is roughly priced as a premium sauna wood; eucalyptus delivers more hardness per dollar than the basswood used in many competitor mid-tier saunas.

Is basswood a bad sauna wood?

No. Basswood is a legitimate sauna interior. It is low-resin, low-allergen, and has a long track record in commercial sauna construction. The honest trade-off is that basswood at ~410 Janka is significantly softer than denser hardwoods and dents more easily under daily use, and it has lower natural decay resistance than cedar. Buyers who specifically want a hypoallergenic light-toned interior have a legitimate reason to prefer it.

Is mahogany a bad sauna wood?

No. Mahogany is a real hardwood with moderate decay resistance and a formal, dense, furniture-grade visual character. Most current Clearlight mahogany is Okoume mahogany (a West African species), which is slightly different from genuine Honduran mahogany but functionally serves the same purpose at a lower cost and with better sustainability availability (true mahogany species are CITES-listed). Mahogany performs well in dry indoor sauna environments. The contrast with cedar is heritage, aroma, and outdoor durability — not whether mahogany is a "good wood."

Does Clearlight offer Canadian Western Red Cedar on any indoor model?

Per Clearlight's current US product pages we reviewed, the Sanctuary Full Spectrum and Premier Far Infrared indoor lines are offered in Okoume Mahogany or North American Basswood. We did not identify a Canadian Western Red Cedar option on Clearlight's indoor lineup as of May 26, 2026. Buyers who specifically want a cedar-interior Clearlight should confirm current options directly with Clearlight, as product lines update.

Does the Clearlight Sanctuary Outdoor really require a cover?

Yes, per Clearlight's own documentation. Clearlight's European product page for the Sanctuary Outdoor 5 describes the unit as "splash resistant, but not weatherproof" with an IPX4 weather rating ("protected from splashing water from any angle"). Clearlight provides a free waterproof cover with every outdoor purchase and states that cover use between sessions is required to maintain the warranty. The Sun Home Luminar's aerospace-grade aluminum exterior does not require a cover for outdoor placement.

What is the Janka hardness of each wood compared here?

Approximate values from Wood Database industry references: Western Red Cedar ~350 lbf, North American Basswood ~410 lbf, Spanish Cedar ~600 lbf, Honduran Mahogany ~800 lbf, African Mahogany / Okoume ~830 lbf, Brazilian eucalyptus ~1,125 lbf. Higher Janka means harder, more dent-resistant. Janka alone is not the only durability metric — natural decay resistance, dimensional stability under heat cycling, and aromatic chemistry are also relevant, and cedar's low Janka is offset by its strong performance on the other dimensions.

Does Sun Home's Canadian Western Red Cedar come from sustainable forestry?

Sun Home sources Canadian Western Red Cedar from managed Canadian forestry operations. Specific certification scheme details are less prominently published on product pages than Clearlight's eco-certification messaging. Buyers for whom forestry certification is decision-critical should contact Sun Home directly to confirm current sourcing details.

Has Sun Home's wood been tested for off-gassing?

Yes. Sun Home commissioned VOC chamber testing at VERT Environmental in San Diego in April 2026, with analysis by AIHA-accredited lab LA Testing using EPA Method TO-15. Total volatile organic compounds tested at 27 µg/m³ ("Low" classification). All individual compounds tested below regulatory limits. Sun Home is the only brand in this comparison with a publicly published, named-lab VOC chamber report we identified.

Why does Sun Home pair cedar interior with aluminum exterior on the Luminar?

Each material does what it does best. Canadian Western Red Cedar interior gives the sauna its traditional sauna feel — warm against skin, aromatic when heated, dimensionally stable under cycling. Aerospace-grade aluminum exterior gives the cabin a weather-immune outer skin that does not absorb moisture, warp, rot, or require staining, sealing, or covering. The combination eliminates the historical trade-off in outdoor saunas between traditional cedar character and weather durability.

Can I configure a Clearlight indoor sauna to use Western Red Cedar instead of mahogany or basswood?

Per Clearlight's current US product pages we identified, the Sanctuary and Premier indoor lines are offered in mahogany or basswood only. We did not identify a configure-to-order Western Red Cedar option for indoor Clearlight models. Confirm directly with Clearlight if cedar configurability is critical to your purchase decision.

How fresh is this comparison?

This article was last reviewed on May 26, 2026. Wood species, product offerings, and warranty terms can change. Spec details were verified against Clearlight's US site (infraredsauna.com), Clearlight's European site (clearlightsaunas.eu), and Sun Home's own product pages. Buyers making a final purchase decision should always confirm current specifications directly with each brand before purchasing.

How this comparison was built

• Wood species, warranty, and outdoor-rating claims for both brands were cross-checked against each brand's primary US product pages and, where relevant, regional product pages (Clearlight EU and Sanctuary Outdoor owner's manuals) as of May 26, 2026.
• Janka hardness, density, and shrinkage values were taken from species-specific reference pages on The Wood Database. Values are approximate and vary by sample.
• Decay resistance classification for Western Red Cedar heartwood is per the USDA Forest Products Laboratory Wood Handbook (FPL-GTR-190, Chapter 2).
• Editorial coverage references are limited to publications that conducted hands-on reviews or named the product in independent buyer's guides as of May 2026.
• All BBB references reflect publicly accessible profiles. BBB ratings and review counts can change; verify the current status before treating this as decisive.

Sources

• USDA Forest Products Laboratory — Wood Handbook, FPL-GTR-190, Chapter 2 (Characteristics and Availability of Commercially Important Woods) — decay resistance classification for Western Red Cedar heartwood
• The Wood Database — species reference pages — Janka hardness, density, and shrinkage values for Western Red Cedar, American Basswood, Honduran Mahogany, African Mahogany / Okoume, and eucalyptus (Brazilian / Rose Gum)
• Clearlight Buyer's Guide — Clearlight's published rationale for mahogany and basswood; Eco-Certified Grade A claim
• Clearlight Sanctuary & Premier indoor model page — Mahogany / Basswood configuration disclosed
• Clearlight EU Sanctuary Outdoor 5 product page — Cedartec® described as "engineered wood"; "splash resistant, but not weatherproof"; IPX4 rating
• Clearlight Sanctuary Outdoor 5 owner's manual — cover requirement to maintain warranty
• Clearlight 4-5 person model page — Sanctuary Outdoor specifications
• The Good Trade — Sun Home Luminar hands-on review (Emily Wagner, May 14, 2026) — independent verification of Canadian red cedar interior and aluminum exterior construction
• Sun Home Eclipse 4-Person product page — Canadian Red Cedar wood type disclosed; full spec sheet available
• Sun Home VOC chamber testing report — VERT Environmental, AIHA-accredited LA Testing, EPA Method TO-15, April 2026
• Cedar vs Hemlock Sauna (indoor) — Sun Home's wood species rationale
• Cedar vs Hemlock Outdoor Sauna Wood — outdoor-specific cedar reasoning
• Best Outdoor Infrared Sauna 2026 — outdoor Sun Home vs Clearlight category comparison
• Sun Home vs Clearlight Sanctuary 2 — indoor head-to-head reference

About the editorial team

Timothy Munene is Senior Heat Therapy Writer at Sun Home Saunas. He leads editorial methodology, product specification verification, and competitive analysis for the Sun Home blog.

Emily Buckley is a Copywriting Specialist at Sun Home Saunas, contributing buyer-guidance framing and clarity review on all editorial deliverables.

Cayla Garcia, MScN, NBC-HWC, is a Board-Certified Health and Wellness Coach. She reviews all health-relevant claims and material-safety statements for accuracy.

Louis Sepulveda, NASM-CPT, NASM-CES, CPR/AED Certified, is a Board-Certified Health and Wellness Coach and certified personal trainer. He fact-checks editorial claims against primary sources.