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Installed infrared cabin

Clearlight Sanctuary 1

1-person indoor full-spectrum infrared cabin, mahogany (basswood also offered), 120V/15A plug-in

Price on requestNo published price, checked Oct 13, 2026

One-person full-spectrum cabin that plugs into a standard 120V outlet

Check price at Clearlight Full review →

Installed infrared cabin

Sun Home Luminar 2

2-person outdoor full-spectrum infrared cabin, Canadian red cedar interior, aluminum exterior, dedicated 240V / 20A circuit, without the optional red-light add-on

$10,999US price, checked Oct 13, 2026

Two-person full-spectrum cabin built for year-round outdoor use

Check price at Sun Home Saunas Full review →

Our one-person cabin pick

Sunlighten Signature I

1-person installed far-infrared cabin, eucalyptus

$4,999US price, checked Oct 13, 2026

One-person far-infrared cabin that needs its own 120 V, 20 A circuit

Check price at Sunlighten Full review →

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Criterion	Clearlight Sanctuary 1	Sun Home Luminar 2	Sunlighten Signature I
US price	Price on requestChecked Oct 13, 2026 · Price details in the review	$10,999Checked Oct 13, 2026 · Price details in the review	$4,999Checked Oct 13, 2026 · Price details in the review
Three-year ownership estimate	Not enough data Incomplete known subtotal. Not included: purchase price, installation, other annual costs, energy use.	$10,999 Incomplete known subtotal. Not included: installation, other annual costs, energy use.	$5,371.52 Incomplete known subtotal. Electricity assumption: $0.18/kWh. Not included: installation.
Choose if	A solo user with about 42.5 × 48.25 in of floor space who wants full-spectrum heaters running off a standard 120V, 15A outlet.	Two adults without indoor space who can set the 970 lb cabin on a level, draining pad and run a new 240 V, 20 A circuit to it.	One person with a dedicated 120 V, 20 A circuit and about 38 × 40 in of indoor floor.
Main trade-off	There's no published price, labor is covered for 7 years rather than for life, and the 14.6A draw leaves little headroom on a 15A circuit.	You pay for the electrician and the pad on top of the price, warranty labor and shipping end after 90 days, and you can't return it once it's unpacked.	You can't return it once the boxes are opened, and the warranty doesn't pay for labor.
Key specifications	Heaters: Two 500 W True Wave full-spectrum heaters on the front wall. True Wave far-infrared heaters on the back wall, side walls, behind the calves and under the floor (count and wattage not stated) Electrical: 120 V, 1,740 W, 14.6 A. Plugs into a 120 V, 15 A outlet with a NEMA 5-15P plug Capacity: Built for 1 adult Weight: 425 lb Operating temperature: 115–125°F, per Clearlight's FAQ, which says cabins typically reach that range even when set to 150°F. Another FAQ answer says 115–130°F. Neither figure is given for this cabin specifically Controls and extras: Digital keypad (temperature, time, lights, heater intensity, reservation mode), smartphone control, Bluetooth/AUX audio and charging station, 12-color chromotherapy. Red light therapy upgrade available EMF: Marketed as low EMF/ELF. The product page says the heaters "cancel out both EMF and ELF." Clearlight's FAQ says True Wave heaters measure less than 1 mG when tested directly on the heater. No test standard, lab or report is named.	Heaters: 6 full-spectrum heaters (4 behind the backrests, 2 on the glass wall) and 3 far-infrared heaters (2 calf panels, 1 floor). The wattage of each heater isn't stated Electrical: 240 V, 4,800 W, 20 A. NEMA L6-20P twist-lock plug on a dedicated GFCI-protected circuit. Licensed electrician required Temperature and warm-up: Up to 170°F. Warm-up takes 15 to 20 min, or 60+ min below 40°F Session guidance: Control range 90 to 170°F. The manual gives typical sessions of 20 to 45 min, with a 45 min maximum. After 2 hours of continuous use, it says to shut the sauna down for at least an hour Outdoor rating: Rated for year-round outdoor use. It runs below 25°F but takes longer to warm up in the cold. The roof isn't built to carry more than a foot of snow Weight: 970 lb assembled. The pad must support at least 1,500 lb Controls and extras: Digital control panel, app control over 2.4 GHz Wi-Fi, Bluetooth and USB audio, chromotherapy lighting, oxygen ionizer and a soft-close door	Heaters: 8 far-infrared heaters, with Sunlighten's SoloCarbon heater named as a feature. No near-infrared or full-spectrum heaters are listed, and per-heater wattage isn't stated Electrical: 120 V, 1,350 W, 20 A. Dedicated 120 V, 20 A circuit with a NEMA 5-20R outlet (5-20P plug) Inside and seating: 32.2 W × 33.6 D × 70.3 H in. One bench, 32.1 W × 20.2 D in and 19.5 in high, for one person Outside and weight: 37.8 W × 39.8 D × 77.7 H in with feet, 428 lb. Leave 4 in to the walls and 12 in above Heat: Up to 170°F. Sunlighten suggests preheating for 45 to 60 minutes and says it warms about 1°F per minute Delivery and assembly: Freight to a garage or flat, paved driveway, left on a pallet. Two people assemble it in about 2 to 3 hours Running cost: Sunlighten estimates 15 to 35 cents an hour Extras: Bluetooth sound system, chromotherapy lights, CELLIANT heater cover and a Reservation Mode that starts the preheat
Exact variant	1-person indoor full-spectrum infrared cabin, mahogany (basswood also offered), 120V/15A plug-in	2-person outdoor full-spectrum infrared cabin, Canadian red cedar interior, aluminum exterior, dedicated 240V / 20A circuit, without the optional red-light add-on	1-person installed far-infrared cabin, eucalyptus
Dimensions	Exterior 42.5 W × 48.25 D × 77 H in. Interior 37.5 W × 45.5 D × 72.5 H in. Bench 35.5 W × 21.75 D × 19 H in. It weighs 425 lb. If you build it into an enclosed space, Clearlight recommends leaving 4 in around the sauna.	Exterior: 57 W × 51.5 D × 82.7 H in. Interior: 53.4 W × 47.2 D × 71.7 H in. The door opening is 24 in. The cabin weighs 970 lb assembled. It ships in one 65 × 32 × 89 in crate with a gross weight of 975 lb.	Outside: 37.8 W × 39.8 D × 77.7 H in, including 2 in feet. Inside: 32.2 W × 33.6 D × 70.3 H in. The door opening is 28 in, and the door swings outward to the right. The bench is 32.1 in wide and 20.2 in deep, 19.5 in off the floor. It weighs 428 lb. Sunlighten recommends 4 in of clearance from the walls and 12 in above the cabin. It says the cabin fits under a standard 8 ft ceiling and its panels fit through a standard 30 in doorway.
Installation	It plugs into a standard 120 V, 15 A household outlet with a NEMA 5-15P plug. The product page doesn't say it needs a dedicated circuit. Shipping is advertised as free. The sauna arrives by freight with lift-gate service at a scheduled delivery appointment, and someone 18 or older must sign for it. Clearlight says two people usually assemble it in about 1 to 1.5 hours with a screwdriver and the included Allen wrench. Its FAQ says 1 to 3 hours. Clearlight offers installation service in some areas but doesn't state a price.	It needs a dedicated 240 V, 20 A circuit with GFCI protection. It also needs a weatherproof NEMA L6-20R twist-lock receptacle within 6 ft of the cord exit. Sun Home says a licensed electrician is required. The manual says not to plug it into a standard 120 V household outlet or share the outlet with other appliances. The 8 ft cord exits the roof at the back wall. The pad must be flat, level and draining, extend at least 6 in beyond the footprint and support at least 1,500 lb. Leave 4 to 6 in behind and beside the cabin, 20 to 24 in above the roof, and room for the door to swing fully open. The product page says to install it at least 5 ft from other electrical devices. Placing it within 5 ft of a water source that produces liquid or vapor voids the warranty. The owner's manual offers a free roof security cable kit, requested by email, to anchor the sauna. It doesn't say at what wind speed the kit is needed. The sauna arrives palletized at the curb in one crate. Sun Home says to set aside half a day and two or more people for assembly.	It needs a dedicated 120 V, 20 A circuit and outlet. The outlet is a NEMA 5-20R, and the plug is a NEMA 5-20P. Sunlighten's FAQ says a power strip or converter voids the warranty. The warranty page also rules out extension cords and non-dedicated circuits. The same page requires at least 5 ft between the sauna and a cold plunge, shower or bathtub. The product page doesn't say whether you need an electrician or GFCI protection. It points you to the spec sheet for electrical details. Sunlighten's support page links an owner's manual, spec sheet, assembly guide and power box installation guide. Those PDFs couldn't be opened for this review. Freight delivery goes to a garage or flat, paved driveway. The carrier leaves the sauna there on a pallet and can't carry it up steps. It comes in two to three mattress-sized boxes of 130 lb each, and you need at least two people to unpack and carry in the panels. The Magne-Seal panels lock together without screws or nails. Sunlighten says two people take about 2 to 3 hours.
Materials	Mahogany or basswood. Clearlight calls it furniture-grade natural wood and notes that grain and color vary from cabin to cabin.	The interior is Canadian red cedar. The exterior has what Sun Home calls aerospace-grade aluminum cladding, a stainless steel roof and double-pane black glass. A fitted all-weather cover is included.	Eucalyptus, which Sunlighten says is sustainably sourced, with natural variation in tone and grain. Basswood was marked not available, and the Obsidian finish is sold on a separate page. It comes with a CELLIANT heater cover. Sunlighten says the glue is non-toxic, citing third-party testing by Franklin International.
Warranty	Clearlight says its residential Limited Lifetime Warranty covers the entire sauna for as long as you own it. That means the heaters, control panels and electrical components, wood cabin, audio and chromotherapy lighting. Parts and shipping are covered for life, but labor isn't. The warranty page says labor is covered for an initial period without giving its length. The Sanctuary owner's manual, which lists Sanctuary 1, sets labor at 7 years for indoor home use in the US and Canada. The manual counts coverage from the purchase date. It also says the warranty can't be transferred without written consent from Sauna Works, which issues it. Commercial use falls under a 5-year warranty. The warranty page says registration is automatic when the sauna ships. The manual instead asks you to register within 30 days of purchase.	These terms cover residential purchases in the US on or after March 2, 2026. Cabinetry (benches, floor grates and heater cover frames) and heaters get a limited lifetime warranty. That coverage applies for up to seven years, which the terms give as their expected useful life. The exterior cabin and the controls (control panel and power box) get 3 years each. LED lighting, glass doors and audio get 1 year. For the first 90 days after delivery, warranty service includes replacement parts, labor and shipping. After that, you pay shipping and labor. Only the original purchaser is covered. Weather events, normal weathering, cosmetic damage and water exposure are excluded. Lacking a dedicated outlet, or placing the sauna within 5 ft of a water source, voids the warranty. The included cover is optional, and not using it doesn't by itself void the warranty. Commercial use carries shorter terms.	Sunlighten's warranty page covers its mPulse, Signature and Amplify cabins under one set of terms. For home use, the cabinet and heaters get 7 years. The cabinet includes the bench, floor grates and heater cover frames. The controls (in-sauna tablet, control pad and power box) get 3 years. The glass door and audio get 1 year, and chromotherapy has a separate 1-year warranty. Commercial use gets 5 years on the cabinet and heaters and 1 year on everything else. It covers replacement parts only, not labor or technician costs. You pay the freight on parts shipped for service. It covers only the original buyer and ends if you sell the sauna. It's void on a power strip, extension cord, converter or non-dedicated circuit. It's also void within 5 ft of a shower, tub or cold plunge. Sunlighten's contraindications page adds that repairs attempted without consulting Sunlighten void it. Sunlighten says its saunas aren't designed for outdoor use. Outside, the separately sold sauna cover has to stay on at all times, even during sessions. The sauna must also be bought and put into use within a year of its manufacture date. The page shows no version or effective date.
Returns	Clearlight calls it a "30 Day Risk-Free Return Policy," but a return isn't free. You have 30 business days from receipt and need a return authorization (RMA). The sauna must be in new or like-new condition, with undamaged original packaging and all manuals. Clearlight deducts a 25% restocking charge and the original shipping charges. If the sauna shipped under a free or discounted shipping promotion, that means the actual freight cost. You also pay return shipping. Custom, private-label and non-standard models are non-refundable. Orders canceled before shipment are fully refunded. Concealed damage must be reported within 5 business days of delivery.	You can return an unused sauna in its original, unopened packaging within 30 days of delivery. Sun Home deducts a 25% restocking fee plus outbound and inbound shipping, even on free-shipping orders. It doesn't accept uncrated, assembled or used saunas. Every cancellation carries a 3% fee. You can cancel an in-stock order within 24 hours. After that, a 25% restocking fee and possibly roundtrip shipping apply. Refunds are issued within 21 days of Sun Home receiving the return. Inspect the shipment before the delivery driver leaves.	You can return or exchange it within 30 days of delivery, but only in the original, unopened packaging. Opened saunas can't be returned. Charges can include a 3% administrative fee, a $499 restocking fee for Signature saunas, storage fees and return shipping. You can cancel before it ships, but the same fees can apply. You start a return by emailing your sales rep or customer care for an authorization, and Sunlighten schedules the pickup. It refunds to your original payment method after it inspects and restocks the sauna. Sunlighten reserves the right to refuse a return, exchange or cancellation.
Unresolved questions	The current quoted price, and whether the Save $600 promotion applies Whether the owner's manual or spec sheet recommends a dedicated circuit (the linked spec sheet couldn't be opened) Whether the red light therapy upgrade needs a bigger circuit. Clearlight's FAQ says add-ons may require a circuit upgrade, typically from 15 A to 20 A or from 20 A to 30 A, but doesn't name models Whether the manual's 7-year labor term is current, since the warranty page gives no length Number and wattage of the far-infrared heaters Which models and components the claimed ETL and CE certification covers Delivery timeline	What the electrician, receptacle and pad will cost at your site The wattage of each heater Average energy use per session Whether it carries an ETL, UL or CSA safety listing, and the file number if so The test method or report behind the <0.5 mG EMF figure Its wind rating, and when you need the roof security cable kit Whether liftgate service or delivery past the curb is available	Whether an ETL listing covers Signature I, and its file number What the linked EMF test measured, on which models and at what distance Whether you need GFCI protection or a licensed electrician for the circuit What the owner's manual, spec sheet and power box installation guide require, since those PDFs couldn't be opened Average power draw once the cabin is up to temperature Carton weights, since two to three boxes of 130 lb each don't add up to 428 lb How many cleanings one $39 cleaning kit covers Whether the $4,999 sale price lasts past the October 14 event

These comparisons use published specifications, not head-to-head tests. Prices and terms are dated. Unknown costs are not zero. Check the exact variant before you buy.