Sun Home Nova 3-Person Indoor Traditional Sauna

1. Heat & research 30% of the rating 4 of 5

   A 6 kW HUUM DROP stone heater with a stated 230 °F (110 °C) maximum and room for water on the stones; the maker says it takes about an hour to heat and there are no measured cabin temperatures.

2. Materials 25% of the rating 4 of 5

   Solid cedar, stainless fasteners and an adhesive a US lab found free of formaldehyde and BTEX, but the adhesive is still glue, the insulation and tile are not named, and the air test is not of a Nova.

3. Safety & EMF 20% of the rating 5 of 5

   Intertek’s ETL directory names “Sun Home Nova” as a sauna room (UL 875 and CSA C22.2 No. 164), and the DROP 6 kW heater is on an SGS North America certificate to UL 60335-1 and CSA E60335-2-53.

4. Trust 10% of the rating 3 of 5

   It publishes lab reports and names the labs, and no recall or Prop 65 notice turned up, but it began in 2021, its BBB profile shows 13 complaints in three years (7 in the last 12 months) and a review of a sauna that sparked and smoked (model not stated), and it runs an influencer affiliate program.

5. Value 15% of the rating 2 of 5

   About $4,000 a seat for three on sale, plus a licensed electrician for a hard-wired 30 A circuit; the regular price is $12,499.

The rating, 3.8 of 5, is the weighted average of these scores. See how we rank saunas and our standard.

1. Japanese cedar interior (species named)
2. Marine-grade stainless steel fasteners
3. A water-based adhesive in the cabin assembly (a lab found no formaldehyde or BTEX in a sample of it); Sun Home says its saunas use no plywood, particleboard or MDF
4. Double-wall insulated construction (insulation not named)
5. Hand-laid carbonized hex tile back wall (material not stated)
6. Black privacy glass
7. HUUM DROP 6 kW stainless steel heater with sauna stones and a Wi-Fi controller
8. LED lights behind the tile and RGB lights under the benches

• Paid certification Intertek (ETL directory, for Sun Home Saunas)

  Lists “Sun Home Nova” among its sauna rooms to UL 875, with a sister listing to CSA C22.2 No. 164 under the same model names. The listings show no certificate number or date. Open ↗ (opens in a new tab)

• Paid certification SGS North America (certificate for HUUM heaters) September 2022

  Certificate SGSNA/20/SUW/00067X, effective 2022-09-02, covers HUUM Drop 4.5, 6, 7.5 and 9 kW and other heaters to UL 60335-1, CAN/CSA C22.2 No. 60335-1 and CAN/CSA E60335-2-53. It says the heaters are for use with sauna stones and the UKU controller. A retailer hosts the copy we read; we could not open SGS’s directory, whose search form sits behind a bot check that we did not pass. Open ↗ (opens in a new tab)

• Maker’s own test VERT Environmental Testing, with LA Testing (AIHA-accredited lab) April 2026

  27 µg/m³ total VOCs in one cabin-air sample (EPA Method TO-15), with five trace compounds (chloromethane, ethanol, isopropanol, acetone, 2-butanone) all below screening levels. The report was prepared for Sun Home and covers a sauna at a private home visited after chemical odors were reported. It does not name the model or the cabin temperature. Open ↗ (opens in a new tab)

• Maker’s own test Applied Technical Services (ATS), Marietta, GA June 18, 2026

  Report 486424 for Sun Home Saunas: the water-based cabin adhesive had no formaldehyde (below 3.0 ppm) and no benzene, toluene, ethylbenzene or xylenes (below 0.001% by weight), with total VOC below 0.001%. The lab used a fabric formaldehyde method and a coatings VOC method adapted for a liquid, and notes the deviation. It tests the glue, not air from a heated cabin. Open ↗ (opens in a new tab)

Does the cabin give off fumes when hot?

Sun Home publishes more than any other maker we checked, and we opened both reports. Neither is a test of a Nova: the air sample came from one sauna of unstated model at a private home after odors were reported, and the adhesive report tests the glue alone. We have asked Sun Home for a cabin-air test, including formaldehyde, on a Nova.

Is the company new and are there complaints?

Sun Home began in 2021. Its BBB profile (opens in a new tab), as we read it on 2026-10-23, shows an A+ rating, accreditation since December 2025, 13 complaints in three years (7 of them in the last 12 months) and a 4.81 average over 70 customer reviews. A one-star review dated 2026-08-14 describes a business sauna, model not stated, that produced a loud bang, a spark and smoke; the reviewer says they unplugged it and the Nova is hard-wired, so it was probably another model. We could not verify the report. CPSC’s database showed no recall naming Sun Home or HUUM on 2026-10-23.

Who is paid to promote it?

Sun Home’s affiliate page (opens in a new tab) invites bloggers, influencers and creators in fitness, wellness, biohacking and nutrition to join its affiliate program, and it has a partner promo portal. We did not find which creators are paid. Its infrared pages also carry detox claims; the Nova page does not.

Is the heater safety listed?

The room is named in Intertek’s listing. The HUUM DROP 6 kW heater is on an SGS North America certificate that a retailer hosts; HUUM’s own certificates page shows CE, SZU and ISO 9001 and does not show that certificate. The certificate says the heater is evaluated with HUUM’s UKU controller.

Does sauna lower sperm count?

In one small study, 10 men who used a Finnish sauna at 80 to 90 °C for 15 minutes twice a week for 3 months had lower sperm counts and motility, which recovered within 6 months of stopping (PubMed 23411620 (opens in a new tab)). If you are trying to conceive, ask your doctor.

• Traditional heat. The 6 kW HUUM DROP heater warms a bed of stones for water-on-stones steam, and the maker lists a maximum of 230 °F (110 °C). The Finnish studies on our heat therapy page used about 80 °C.
• The ETL listing names the model. Intertek’s directory lists Sun Home Saunas rooms “Sun Home Nova”, Eclipse, Pod, Luminar and others to UL 875 and CSA C22.2 No. 164.
• Sun Home publishes lab reports, though none is for the Nova. An Applied Technical Services report (no. 486424, June 18, 2026) found no formaldehyde (below 3.0 ppm) and no benzene, toluene, ethylbenzene or xylenes (below 0.001% by weight) in a water-based cabin adhesive. A VERT Environmental report (inspection April 2, 2026, analyzed by an AIHA-accredited lab) measured 27 µg/m³ total VOCs in one Sun Home sauna.
• Japanese cedar lines the walls. Sun Home’s testing page says its saunas are solid wood with no plywood, particleboard or MDF, but it does not name the Nova.
• A search of the CPSC recall database on 2026-10-23 found no recall naming Sun Home or HUUM.

• The Nova is new; Sun Home calls it its first indoor traditional sauna. The adhesive and air reports do not name the Nova. The air report is one sample from one unnamed sauna, taken at a private home after chemical odors had been reported, and it gives neither the model nor the cabin temperature.
• Sun Home began in 2021. Its BBB profile (read 2026-10-23) shows an A+ rating, accreditation since December 2025 and 13 complaints in three years, 7 of them in the last 12 months. One review describes a sauna, model not stated, that produced a bang, a spark and smoke; the reviewer unplugged it and the Nova is hard-wired, so it was probably another model. We could not verify any of this ourselves.
• It costs about $12,000 (shown as marked down from $12,499 on 2026-10-23) plus an electrician for a dedicated 240 V, 30 A circuit.
• “Limited lifetime” means seven years in Sun Home’s terms. For the Nova it covers cabinetry, with 1 year on the fan and light controls and on LED lighting, parts only after the first 90 days, and it ends if ownership changes. HUUM’s own warranty covers its electrical heaters for 3 years in private use and excludes the heating elements and the stones.

Third-party tested

Yes

Tested by

Intertek (ETL listing names the Nova)

1. Sun Home Nova 3-Person Indoor Traditional Sauna: maker’s product page. Maker’s page. Price, heater, wood, 230 °F maximum and electrical needs, seen 2026-10-23. Open ↗ (opens in a new tab)
2. Sun Home Saunas: EMF, VOC and safety testing. Maker’s page. Sun Home’s summary of its lab reports and materials. It says the 27 µg/m³ figure reflects the tested unit under the reported conditions. Open ↗ (opens in a new tab)
3. Applied Technical Services report 486424: water-based adhesive (June 18, 2026). Test report. Customer: Sun Home Saunas. Formaldehyde not detected (below 3.0 ppm); benzene, toluene, ethylbenzene and xylenes not detected (below 0.001% by weight). Open ↗ (opens in a new tab)
4. VERT Environmental air quality inspection report (April 14, 2026). Test report. One cabin-air sample, EPA Method TO-15, 27 µg/m³ total, analyzed by LA Testing. The report says the visit followed reported chemical odors at a private home. Open ↗ (opens in a new tab)
5. Intertek ETL directory: Sun Home Saunas, Electric Dry Bath Heater (UL 875). Certifier or regulator listing. Lists Sun Home Eclipse 2 and 4, Pod, Luminar 2 and 5, Zenith, Solara and Nova. Open ↗ (opens in a new tab)
6. Intertek ETL directory: Sun Home Saunas, Electric Sauna Heating Equipment (CAN/CSA-C22.2 No. 164). Certifier or regulator listing. The Canadian sister listing, with the same model names. Open ↗ (opens in a new tab)
7. SGS North America certificate of compliance for HUUM sauna heaters (PDF). Certifier or regulator listing. Certificate SGSNA/20/SUW/00067X, effective 2022-09-02. Hosted by a retailer, not by HUUM. Open ↗ (opens in a new tab)
8. HUUM limited warranty terms (PDF). Maker’s page. Electrical heaters 3 years in private use; excludes heating elements and sauna stones. Open ↗ (opens in a new tab)
9. Sun Home Saunas warranty information. Maker’s page. Open ↗ (opens in a new tab)
10. Sun Home Saunas: become an affiliate. Maker’s page. Invites bloggers, influencers and content creators to join an affiliate program. Open ↗ (opens in a new tab)
11. Better Business Bureau profile: Sun Home Saunas. Independent source. A+, accredited since 2025-12-09, 13 complaints in 3 years (7 in the last 12 months), business started 2021-04-27, 4.81 average over 70 reviews, as shown on 2026-10-23. Open ↗ (opens in a new tab)
12. US Consumer Product Safety Commission: recalls with “sauna” in the title. Certifier or regulator listing. No Sun Home or HUUM recall on 2026-10-23. Open ↗ (opens in a new tab)
13. California Attorney General: Prop 65 60-day notice search. Certifier or regulator listing. No notice names Sun Home Saunas. Open ↗ (opens in a new tab)
14. Sauna exposure and human spermatogenesis (Garolla 2013, PubMed 23411620). Independent source. 10 men, sauna at 80 to 90 °C twice a week for 3 months; sperm count and motility fell and recovered. Open ↗ (opens in a new tab)

• Almost Heaven Blackwater 4 Person Cube Sauna An outdoor cedar cube with a Harvia heater, about $11,300 on sale. A longer track record, but fewer published lab tests.
• Almost Heaven Hillsboro 2 Person Indoor Sauna (opens in a new tab) A spruce indoor room for two with a 6 kW Harvia heater, about $5,299.
• Sun Home Solstice and Equinox infrared saunas (opens in a new tab) From about $4,999 to $7,799. They do not appear by name in the ETL listing we found, so check the listing for the exact model.

• Heat Therapy Basics Article How regular sauna use and heat exposure affect cardiovascular health, brain function, inflammation, and longevity
• Infrared vs Traditional Article How Finnish sauna, infrared sauna, and steam rooms compare in temperature, mechanisms, and health outcomes
• Detox and Recovery Article How sauna use promotes heavy metal excretion through sweat, activates heat shock proteins, and supports post-exercise muscle recovery
• Hot Baths and Passive Heat Therapy Article What research says about hot baths: better sleep when timed before bed, promising but early heart and mood findings, and who should be careful.