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Installed infrared cabin

Sunlighten Amplify III

3-person installed infrared cabin, eucalyptus/obsidian

$6,999US price, checked Oct 23, 2026

Three-person cabin with ten heaters, but its voltage is unclear

Check price at Sunlighten Full review →

Installed infrared cabin

Dynamic Saunas Barcelona

1-2 person indoor carbon far-infrared cabin, Low EMF version DYN-6106-01, hemlock, 120 V, 15 A plug-in

$2,099US price, checked Oct 24, 2026

Compact 1-2 person carbon infrared cabin on a 15 A outlet, interior 36 × 32 in

Check price at Dynamic Saunas Full review →

Criterion	Sunlighten Amplify III	Dynamic Saunas Barcelona
US price	$6,999Checked Oct 23, 2026 · Price details in the review	$2,099Checked Oct 24, 2026 · Price details in the review
Three-year ownership estimate	$6,999 Incomplete known subtotal. Not included: installation, other annual costs, energy use.	$2,099 Incomplete known subtotal. Not included: installation, other annual costs, energy use.
Choose if	Two or three people who share sessions, with a dedicated 20 A circuit and about 63 × 46 in of indoor floor.	One adult, or two smaller adults, with a dedicated 15 A circuit and about 39 × 38 in of floor space who want a low price.
Main trade-off	Sunlighten's product page and spec sheet disagree on voltage, and opened saunas can't be returned.	The interior is narrow for two, no EMF report or safety listing is published, and a return costs 20% plus freight.
Key specifications	Heaters: 7 SoloCarbon far-infrared heaters and 3 full-spectrum heaters. Wattage of each isn't stated Electrical: Dedicated 20 A circuit and outlet. The product page says 120 V and gives no wattage. The spec sheet and manual say 240 V, 3,280 W, 13.67 A and a NEMA 6-20 outlet. Get Sunlighten's answer in writing Top temperature and clearance: Up to 170°F. Sunlighten recommends 4 in at the walls and 12 in above, and the manual says at least 8 in behind Inside and seating: 56.8 W × 39.9 D × 70.3 H in. One bench, 56.7 W × 20.3 D in and 19.5 in high, for up to three people Weight: 642 lb on the product page. The spec sheet says 710 lb in eucalyptus and 668 lb in basswood Delivery and assembly: Freight to a flat, paved surface at your garage door, left on a pallet. Two people assemble it in about 2 to 3 hours Running cost: Sunlighten's owner's manual estimates $0.20 to $0.50 an hour Heat-up: Sunlighten's product page suggests preheating for 45 to 60 minutes and says it warms about one degree per minute. The manual says 30 to 45 minutes Options: Eucalyptus or Obsidian at the same price, basswood $200 less. The 2-person size costs $1,000 less. Integrated red light was marked not available Extras: Bluetooth sound system, chromotherapy lights and a CELLIANT heater cover	Heaters: 6 carbon low-EMF emitters. The manual's diagram labels four wall emitters at 300 W each (two on the back wall, one on each side) and two at 200 W each (a bench emitter and a floor emitter). Dynamic gives no total wattage Electrical: 120 V, 15 A, dedicated circuit required per the manual's cover. No rated total wattage is published. The diagram's emitter labels add up to 1,600 W if every emitter runs at once, about 13.3 A at 120 V. No extension cords, adapters or surge protectors Capacity and interior: Sold as 1-2 person. Inside: 36 W × 32 D × 67 H in. Dynamic's 2-person San Marino lists 43 × 37 × 68 in inside Temperature and heat-up: The controls go up to 150°F, but the manual says the cabin will most likely never reach it. Typical heat-up per the manual: about 20 minutes to 100°F, 25 to 30 minutes to about 115 to 120°F, and 45 to 60 minutes to about 135°F, depending on the model. The usual setting is 118 to 122°F. The timer runs 5 to 60 minutes, and the sauna shuts off after 75 minutes without input EMF: The manual says Dynamic's Low EMF models average 5 to 10 mG at about 2 in from the heater panel. It gives no figure, test method or report for the Barcelona itself Controls and extras: LED control panel inside and outside, a Bluetooth music system with two speakers and a pre-amp (no radio), an MP3 aux jack, a reading light, chromotherapy lighting, a red light button and a roof vent. The product page says the red light feature starts with 2024 models and gives no wavelength. The manual describes Wi-Fi on/off control with a separate instruction sheet in the accessory box Weight: 250 lb assembled, 300 lb shipping weight, 1 box Delivery and assembly: Freight to the curb or end of the driveway, one box on a pallet. Two adults assemble it with clasp-together panels Warranty (residential): 5 years on heating elements and electronics, 1 year on wood structure and glass. Parts only, no labor Options: The Barcelona Elite (DYN-6106-01 Elite) has the same size with six PureTech ultra low EMF emitters. The manual gives 3 to 5 mG for Elite models. The San Marino is Dynamic's 2-person model with a 43 × 37 in interior Recall status: Not named in CPSC recall 26-784, and Golden Designs says its products aren't part of that recall
Exact variant	3-person installed infrared cabin, eucalyptus/obsidian	1-2 person indoor carbon far-infrared cabin, Low EMF version DYN-6106-01, hemlock, 120 V, 15 A plug-in
Dimensions	Outside: 62.3 W × 45.9 D × 77.7 H in, including 2 in feet. Inside: 56.8 W × 39.9 D × 70.3 H in. The door opening is 28 in. Sunlighten says the cabin fits under a standard 8 ft ceiling and its panels fit through a standard 30 in doorway.	Outside: 39 W × 36 D × 73 H in, and the roof overhang adds 2 in to the depth. The manual's diagram shows 38.3 in wide and 71.9 in tall. Inside: 36 W × 32 D × 67 H in. Dynamic doesn't publish the bench size or seat height, the door size or the cord length. The cabin weighs 250 lb and has a shipping weight of 300 lb in one box. The manual recommends 1 to 2 in of clearance around the cabin and 10 to 12 in above it.
Installation	It needs a dedicated 20 A circuit and outlet. The product page says 120 V. The spec sheet and owner's manual say 240 V, 3,280 W, 13.67 A and a NEMA 6-20 outlet (see the Electrical row). The manual recommends a GFCI or dual-function breaker, so check your local code. Freight delivery needs a flat, paved surface up to your garage door, and 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. The Magne-Seal panels lock together without screws or nails, and Sunlighten says two people take about 2 to 3 hours.	It plugs into a 120 V, 15 A outlet. The manual's cover says a 120 VAC, 15 A dedicated circuit is required, and it says no other appliance should run on the same breaker while the sauna is on. It bans adapters, surge protectors and extension cords between the sauna cord and the outlet. The manual gives no GFCI guidance. The cabin is for indoor use only, on a dry, level spot away from water, and placing it outdoors voids the warranty. Dynamic ships by freight carrier to the curb or the end of the driveway. The box is strapped to a pallet, and the driver isn't obligated to move it closer to the house. You need two or more people to unstrap and remove the box, and the carrier phones 24 to 48 hours ahead to set a window of about four hours. Dynamic can cancel delivery to islands or remote areas and may add a fee. The panels clasp together with buckles, and the manual says two adults are needed to assemble it. Dynamic gives no assembly time, no delivery lead time and no installation price.
Materials	It's eucalyptus in Sunlighten's black Obsidian finish. Plain eucalyptus costs the same, and basswood is $200 less. It comes with a CELLIANT heater cover. Sunlighten says its eucalyptus is sustainably sourced. It also says the glue on the tongue-and-groove boards is non-toxic and was third-party tested by Franklin International.	Natural hemlock wood, with a tempered glass door. Dynamic's About page describes its line as all Canadian hemlock fir construction. Dynamic doesn't state the wood grade, finish, adhesives or any emissions test. The manual says surface cracks from kiln-dried wood expanding and contracting aren't defects.
Warranty	Sunlighten's warranty covers replacement parts only, not labor or technician costs, and you pay all freight, including on parts shipped for service. For home use, the cabinet and heaters get 7 years, the controls 3 years, and the glass door and audio 1 year. Commercial use gets 5 years on the cabinet and heaters and 1 year on everything else. Coverage is for the original buyer only and ends if you sell the sauna, and the sauna must be bought and put into use within a year of its manufacture date. It's void on a power strip, extension cord, converter or shared circuit, or within 5 ft of a shower, bathtub or cold plunge. Sunlighten says its saunas aren't designed for outdoor use, and outdoors its cover (sold separately) has to stay on at all times, even during sessions.	Five years on heating elements and electronics for residential use, with 1 year on the wood structure and glass, per the owner's manual. The manual's warranty page is headed "Limited Lifetime Warranty" and then describes a 5 Year Limited Warranty on wood, structure, heating elements and electronics for "1 to 5 years" from purchase. A footnote sets 5 years for residential use and 1 year for commercial use on the elements and electronics. The warranty covers parts, not labor. You prepay shipping on any part you send back and insure it, and you need proof of purchase. Coverage is for the original purchaser at the original site and ends on transfer or relocation. It's void outdoors, after modification, after repairs by anyone Golden Designs hasn't authorized, and with a worn-out receptacle. The manual asks you to register within 60 days of purchase. Dynamic's counterfeit warning says products bought outside its authorized channels aren't warranted or supported.
Returns	You have 30 days from delivery to start a return, but only while the sauna is unopened in its original packaging. Opened saunas can't be returned or exchanged. Charges can include a 3% administrative fee, a $499 restocking fee, storage fees and return shipping to the warehouse. Cancelling before it ships can cost the 3% fee, plus storage fees if the sauna has to be re-routed. Sunlighten reserves the right to refuse a return, exchange or cancellation. It refunds to your original payment method after it inspects and restocks the sauna.	Orders can be canceled within 24 hours of purchase, and returns must be processed within 30 days of delivery. You need a return authorization number first, and the sauna must be new, unused and in its original packaging. Each cancellation or return carries a 20% handling and restocking fee per sauna, storage and routing costs, and all shipping to and from Dynamic. Without an authorization number Dynamic won't accept the shipment. Refunds follow within 5 business days after the sauna reaches the warehouse and passes inspection. Dynamic can refuse a refund if it finds damage or you break the policy. You carry the risk of loss on the return.
Unresolved questions	Which voltage is right, 120 V (product page) or 240 V (spec sheet and owner's manual) Whether the weight is 642 lb (product page) or 710 lb (spec sheet) The wattage of each heater and average power use during a session Whether an ETL listing covers this exact model, and its file number Whether the sale price continues after October 31, when Sunlighten's pages say the sauna sale ends	Total rated wattage and average power use EMF readings for this model, and the test method and lab Whether any ETL, UL or CSA listing covers the model Bench size, seat height, door size and cord length Whether freight is included, what it costs and the delivery lead time How long assembly takes Whether this model includes the Wi-Fi module and whether any app or fee applies The wavelength and output of the red light feature Whether a GFCI is allowed or required on the circuit How the "Limited Lifetime" heading fits the 1-to-5-year terms

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.