Radiant Saunas Review 2026: Are They Any Good?

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Radiant Saunas are worth buying, but only one of them and only from one place: the carbon-heater Coronado on Amazon, where it was $888 cheaper than on the manufacturer's own website the morning we checked. Before any of that is useful, you need to know which Radiant you have found, because two unrelated companies answer to almost the same name and their prices are three times apart. We own and use a barrel sauna rather than a HeatWave cabin, so this is a specs, storefronts and small-print review rather than a hands-on one, and we have said so wherever an owner's experience is doing the work instead of ours. Every price, spec and warranty term below was read off bluewaveproducts.com, its warranty PDF and the live Amazon listings on 6 October 2026.

Last reviewed: October 2026

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Quick Comparison: Every Wood Cabin In The HeatWave Range

Model (item)	Direct	Amazon	Heaters, watts	Power	Max temp	Amazon rating
Majestic 1-2 person (SA3202)	$1,999.99	Not found	5 carbon, 1,230W	120V / 15A	Not published	-
Buena Vista ceramic (SA2400)	$2,470.99	$1,574.99	3 ceramic, 1,050W	120V / 15A	140F	4.1 (94)
Buena Vista carbon (SA2402)	$2,603.99	Not found	4 carbon, 1,170W	120V / 15A	140F	-
Coronado ceramic (SA2406)	$2,754.99	Not found	5 ceramic, 1,600W	120V / 15A	140F	-
Coronado carbon (SA2409)	$2,887.99	$1,999.99	6 carbon, 1,725W	120V / 15A	140F	4.4 (318)
Majestic 2-person premium (SA3209)	$2,887.99	Not found	6 carbon, 1,725W	120V / 15A	Not published	-
Majestic 3-person corner (SA3212)	$2,991.95	Not found	7 carbon, 1,740W	120V / 20A, non-standard plug	Not published	-
HeatWave 2-person (SA8000)	$3,239.90	Not found	6 carbon, not published	120V / 15A	140F	-
Yukon 2-person cedar (SA1309)	$3,529.99	Not found	6 carbon, 1,770W	120V / 15A	140F	-
Sante Fe 3-person corner (SA2412DX)	$3,579.99	Not found	7 carbon, 1,805W	120V / 20A	140F	-
Monticello 4-person (SA2418)	$3,871.99	$3,370.99	9 carbon, 2,200W	120V / 20A	140F	3.6 (24)
Hudson Bay 3-person cedar (SA1312)	$3,979.99	$3,235.74	7 carbon, 1,805W	120V / 20A	140F	4.5 (18)
Tucson 4-person corner (SA2420DX)	$4,005.99	$3,701.30	10 carbon, 2,270W	120V / 20A	140F	No ratings
Sirona 3-person (SA7008)	$4,379.99	Listed, unavailable	8 carbon, not published	Not published	140F, per Amazon	-
Klondike 4-person cedar (SA1318)	$4,478.99	Not found	9 carbon, 2,220W	120V / 20A	140F	-
Cedar Elite 3-4 person (SA1315)	$4,497.99	Not found	9 carbon, 2,140W	120V / 20A	140F	-
Whistler 4-person cedar corner (SA1320)	$4,538.99	$4,199.00	10 carbon, 2,270W	120V / 19A as published	140F	4.7 (3)
Sirona 4-person (SA7009)	$4,938.99	Not found	8 carbon, not published	Not published	Not published	-
Cedar Elite 4-5 person (SA1322)	$5,113.99	Not found	9 carbon, 2,410W	120V / 20A	140F	-
Great Bear 6-person cedar (SA1323)	$5,949.99	Not found	10 carbon, 2,700W	240V / 20A	140F	-

There is a second, much cheaper product line under the same brand, and it is a tent rather than a cabin.

Portable (item)	Direct	Panels, watts	Max temp
Liberty Portable (SA7016)	$179.99	3 carbon, 1,000W	150F
Valerian Portable (SA7015)	$179.99	3 carbon, 1,000W	150F
Rejuvenator Portable (SA6310)	$189.99	3 carbon, 900W	150F
Spirit Deluxe Portable (SA7017)	$229.99	3 extra-large carbon, 1,000W	150F
Harmony Deluxe Portable (SA6315)	$239.99	4 carbon, 900W	Not published

Prices last checked 6 October 2026 and they move, so confirm the current price on Amazon or on bluewaveproducts.com before you buy. Direct prices and item numbers are Blue Wave's own, read off its sauna collection and each product page; "Not found" means we searched Amazon for that model and did not find a listing, not that none exists. The ratings column is Amazon's, because it is the only review record on these cabins we can point you at.

Three things stand out from the shape of that list before you read a word about any single model. Twenty wood cabins, and only six of them have an Amazon listing we could find, so most of the range can only be bought at list price from a dealer-focused shop. Nine of the twenty need 20 amps or more, and one of those needs 240 volts, which is a bigger practical hurdle than any spec on the page. And Blue Wave publishes no heat-up time for any model in either table, so that column does not exist. We are not going to invent one. What owners say about heat-up is further down, with the numbers attached.

First, Which Radiant Are You Looking At?

This is the part that costs people money, so it goes before the saunas.

Radiant Saunas is a retail brand name on Amazon listings and model numbers (BSA2409, SA2400, and so on) for saunas made by Blue Wave Products, trading its sauna line as HeatWave. The Amazon product pages name Blue Wave Products as the manufacturer and sit under a "Blue Wave Store" brand page. Blue Wave's own shop is bluewaveproducts.com, the warranty claims address is warranty@splashnetxpress.com, and the warranty card posts to an address in St. Charles, Illinois. The wood cabins list at $1,999.99 to $5,949.99 direct, and the cheapest of them was $1,574.99 on Amazon.

Radiant Health is a different company selling a different product at a different price. Its Pause line listed at $5,840.00 for the 1-person and $6,940.00 and $7,760.00 for the larger cabins on 6 October 2026, before a $700 checkout code it was running that week. Here is the trap: radiantsaunas.com now redirects, through two hops, to radianthealth.com. We followed it on 6 October 2026 and landed on Radiant Health's homepage, complete with its own "$700 off until October 23" banner. So the most obvious URL for the brand you searched for serves a company whose cheapest sauna costs more than twice Blue Wave's dearest one.

Nothing about that is Radiant Health's fault, and this is not a knock on their saunas, which we have not reviewed. It matters because the search term is shared and the answer is not. If you read a glowing review of a "Radiant" sauna and then bought a $1,999 cabin, or read a scathing one and cancelled a $6,940 order, you may have been reading about the other company entirely.

A third name adds to the mess. Several of the Amazon listings for these cabins have been retitled "Heat Wave" or "HEATWAVE" rather than "Radiant Saunas", while the accessories kept the old branding: the seat cushion Amazon offers alongside the Coronado is still listed as a "Radiant Saunas SA5052". So searching "Radiant Saunas" on Amazon brings up a page largely full of competitors, which is why the brand looks like it has disappeared. It has not. It is filed under Heat Wave and Blue Wave.

The naming gets worse at the model level, and it costs you money there too. The Monticello's Amazon listing is titled Montecillo, with the letters transposed. Search the spelling on the maker's own website and Amazon will tell you the cabin is not sold there, which is wrong by $501.00. We make the same point about the other mis-indexed models further down, because the pattern is the single most useful thing to know about shopping this brand.

The $888 Gap: Amazon Against The Maker's Own Shop

Every cabin that exists in both places is cheaper on Amazon, and on the two cheap ones the gap is enormous.

• Coronado, 6 carbon heaters. $1,999.99 on Amazon (ASIN B0063E9DZA, "ships from and sold by Amazon.com", free delivery). $2,887.99 on bluewaveproducts.com as item SA2409. That is $888.00, or 31% of the direct price.
• Buena Vista, 3 ceramic heaters. $1,574.99 on Amazon (B0063E9H8I, in stock, free delivery). $2,470.99 direct as item SA2400. A gap of $896.00.
• Hudson Bay, 3-person cedar. $3,235.74 on Amazon (B00AXNKVP8, sold and shipped by Amazon.com). $3,979.99 direct as SA1312. A gap of $744.25.
• Monticello, 4-person. $3,370.99 on Amazon (B0063E9EMM, sold and shipped by Amazon.com). $3,871.99 direct as SA2418. A gap of $501.00.
• Whistler, 4-person cedar corner. $4,199.00 on Amazon (B00R52X148). $4,538.99 direct as SA1320. A gap of $339.99.

Blue Wave's site is built for dealers, with a "Become a Dealer" link and a dealer portal login in the header, which is the likeliest explanation: the figures on bluewaveproducts.com read like list prices rather than a shop competing for your order. Whatever the reason, paying them is a choice, and the direct price buys you nothing extra that we could find. Notice also that the gap shrinks as the price rises, from 31% on the Coronado to 7.5% on the Whistler, which is another way of saying the bargain in this range is at the bottom of it.

One thing to get right before you treat the Amazon figure as a sale. The Coronado listing shows $1,999.99 against a $2,799.99 list price and badges it "29% off", which looks like a countdown you need to beat. It is not. The price history for that ASIN, tracked since July 2013, records the Amazon price at $1,999.99 since 4 February 2026, eight months at the same number, against an all-time Amazon average of $2,625.48 and a July 2024 high of $4,326.22. So $1,999.99 is simply what this sauna costs now. Do not rush, and do not read the badge as a deadline. It also means the honest comparison is between $1,999.99 and $2,887.99, not between a flash price and a list price.

140F Is The Ceiling On Every Cabin, And The Tents Beat Them

If you are coming from a traditional sauna, this is the number that decides whether you will be happy, and on the wood cabins Blue Wave is completely consistent about it. Of the twenty cabins in the table above, sixteen publish a maximum temperature and all sixteen publish the same one: "operates up to 140 degrees F". That holds from the $2,470.99 Buena Vista to the $5,949.99 Great Bear, and it holds across hemlock and cedar, three heaters and ten. There is no hotter cabin in the range at any price.

The other four cabins are the odd ones out, and the oddity is an omission rather than a different figure. The three Majestic-series pages (SA3202, SA3209 and SA3212) and the two Sirona pages publish no maximum temperature at all. The Sirona 3's Amazon listing fills that gap with "heating up to 140°F", which is Blue Wave's own copy on Blue Wave's own listing, so we would read it as 140F too, but the manufacturer's page does not say so and we are not going to pretend it does.

The portables are a different story, and this is the exception that matters. Four of the five tent saunas publish a ceiling of 150 degrees F, not 140: the Liberty and Valerian at 1,000W, the Rejuvenator at 900W and the Spirit Deluxe at 1,000W all say "provide heat up to 150 degrees F" in Blue Wave's own bullets. The Harmony Deluxe publishes 900W and no temperature. So the $179.99 fabric tent is specified ten degrees hotter than the $5,949.99 cedar room, which tells you something about how these numbers are set. A collapsible tent with a padded collar round your neck and 1,000 watts a few inches from your skin is a much smaller volume of air to heat than a six-person cabin, and the published figure follows the physics rather than the price.

What none of that changes is the comparison with a stove sauna. 140F is a long way from a traditional Finnish sauna, which typically runs 150F to 195F. The idea behind infrared is that the panels heat you rather than the air, so you sweat at a lower air temperature. Research on infrared sauna use is thinner than the research on Finnish sauna bathing, and the cardiovascular studies people usually cite were run in traditional saunas at traditional temperatures, so treat any claim that an infrared cabin delivers the same thing as unproven rather than established. If you want the detail on what the two kinds of heat actually do differently, we go through it in far infrared vs full spectrum saunas.

Two practical consequences. Someone used to 180F will find 140F mild, and will probably want longer sessions to get the same sweat. And on a cold day in an uninsulated garage, a cabin whose ceiling is 140F has very little headroom, which is exactly the pattern in the Buena Vista's reviews below.

A conflict worth naming: the Amazon listings for the Buena Vista and the older Tucson both claim "141 degrees F" in their bullet points, while Blue Wave's own product pages and the A+ copy on the same Amazon listings say 140F. Both sets of words are Blue Wave's. We have used 140F throughout because that is what the manufacturer's product pages say, and we would not plan a purchase around the extra degree in either direction.

Coronado, 6 Carbon Heaters (BSA2409 / SA2409): $1,999.99

The pick of the range, and the only one we would spend money on.

Published specs, from Blue Wave's own page: six low-EMF carbon infrared heaters, 1,725 watts, up to 140F. Canadian hemlock with tongue-and-groove joinery and buckle assembly. Assembled 47.75in W x 39.25in D x 75in H, interior 44.50in W x 35in D x 69in H. Bronze-tinted 8mm tempered glass door, 23.25in W x 60.875in H. Dual interior and exterior LED control panels, chromotherapy light, oxygen ionizer, adjustable roof vents, CD player with AUX input. 120V / 15A, so a standard household outlet. CE, CETL, RoHS and ISO 9001 certifications. Amazon's listing gives the shipping figures as 49 x 39 x 75 inches and 329 pounds.

Watch out for the twin. Blue Wave also sells a "2-Person Hemlock Premium Infrared Sauna w/ 6 Carbon Heaters", item SA3209, at exactly the same $2,887.99, with the same six carbon heaters and the same 1,725 watts. It is not the Coronado. It is the Majestic series: a different page with a different manual, a 5 to 12 micron wavelength claim the Coronado page does not make, ceiling and floor vents instead of adjustable roof vents, and an interior of 43 x 35 x 67 inches rather than the Coronado's 44.50 x 35 x 69. Neither the words "low-EMF" nor a maximum temperature appear on the SA3209 page. If you are checking our figures against the shop, make sure you are on the page headed Coronado Carbon Sauna, Item SA2409. Two products at one price with near-identical headline specs is an easy way to compare the wrong cabin.

Pros

• $1,999.99 on Amazon against $2,887.99 direct, fulfilled by Amazon, free delivery
• Six carbon heaters and 1,725 watts, nearly double the Buena Vista's output
• Standard 120V/15A outlet, no electrician
• 4.4 across 318 ratings, the only model in the range with a review record worth reading
• Amazon's review-topic counters put assembly at 116 mentions, 110 of them positive

Cons

• 140F ceiling, like every other cabin here
• No EMF figure published anywhere, despite the "low-EMF" wording
• No heat-up time published
• Of the 27 reviews Amazon files under build quality, 11 are negative
• Two of those reviews single out the radio, one noting it loses its settings every time the sauna is unplugged

What owners report that the spec sheet will not tell you. Amazon groups the reviews by topic and publishes the counts, which is more useful than any summary we could write: heating time 84 mentions, 66 positive and 18 negative; value for money 84 mentions, 76 positive and 8 negative; instructions 22 mentions, split 11 and 11; capacity 21 mentions, 16 positive and 5 negative. On heat-up specifically, the individual numbers owners give vary a lot, which is what you would expect from cabins in different rooms: one reviewer measured 136F in about 25 minutes with the panel set to 140F and then watched the controller cycle between 136F and 140F, one says about 15 minutes, and one says 30 to 40 minutes to reach the top temperature. We have not independently measured any of those. Two of the capacity reviews describe two adults as a squeeze, including one that reads "tight fit for two, but luxurious for one". Read the 2-person claim as two slim adults who know each other well.

Check price →

Best for: anyone who wants a two-person far infrared cabin for under $2,000 and has a spare 15A outlet.

Buena Vista, 3 Ceramic Heaters (BSA2400 / SA2400): $1,574.99

The cheapest way into the range, and the one we would talk you out of.

Published specs: three ceramic infrared heaters, 1,050 watts, up to 140F. Interior 33in W x 31in D x 67in H. Clear 8mm tempered glass door. Dual LED control panels, built-in sound system, magazine rack. 120V / 15A. Blue Wave gives assembly time as 45 minutes. $1,574.99 on Amazon against $2,470.99 direct.

Worth knowing before you order the cheap one: there is a carbon Buena Vista too, item SA2402 at $2,603.99 direct, with four carbon heaters and 1,170 watts. We could not find an Amazon listing for it, so we cannot tell you what it really costs, and 1,170 watts is not the fix this cabin needs. The problem below is watts, and four carbon heaters add 120 of them.

Pros

• Lowest entry price in the lineup
• Standard 120V/15A outlet
• All 15 of the reviews Amazon files under value for money are positive
• Of 24 assembly mentions, 20 are positive, with owners reporting around two hours

Cons

• 1,050 watts and three heaters for a cabin Blue Wave says seats two
• Of the 19 reviews Amazon groups under temperature, 14 are negative
• All 7 of the reviews grouped under build quality are negative
• Capacity 7 mentions, 6 negative; construction 7 mentions, 6 negative; durability 6 mentions, 5 negative
• Ceramic heaters rather than carbon, so the heat is more localised

What owners report. This is the clearest signal in the whole range and it points one way. Against the Coronado's 18 negative heating mentions out of 84, the Buena Vista has 14 negative out of 19 on temperature. The individual reports are specific: one owner says it had "a hard time getting to 130", one says it "never seems to get over 135", and one says the temperature never went above 109F, contacted the company and was told to return it through Amazon. Amazon's own summary of that review group says owners report it failing to reach the advertised 140F and taking over an hour to reach 118F, and notes one owner reporting the back and calves getting scalded, which is what localised ceramic heat behind a bench can do. On durability, one owner reports the radio shelf breaking off, and on construction, one describes the staples as very small and weak.

Our reading is that 1,050 watts is simply not enough for this cabin, and that the $425 saved against the Coronado buys a sauna that may not get hot enough to use. If your budget stops at $1,600, we would rather point you at the options in the best infrared saunas under $3,000 than at this one.

Check price →

Best for: nobody, at this configuration. If you want ceramic specifically, buy more watts.

Hudson Bay, 3-Person Cedar (BSA1312 / SA1312): $3,235.74

The cedar option, and the one where the two storefronts disagree about what is in the box.

Published specs, from Blue Wave's own page: seven low-EMF carbon infrared heaters, 1,805 watts, up to 140F, Canadian red cedar, chromotherapy lighting, oxygen ionizer, integrated sound system with AUX, radio and CD player, adjustable roof vents, dual interior and exterior LED control panels, bronze-tinted tempered glass, seats up to three adults. 120V / 20A, which is the figure that should change your plans. It is item SA1312 at $3,979.99 MSRP. Amazon's listing adds the shipping figures, 53 x 53 x 75 inches and 359 pounds, and sells it at $3,235.74, sold and shipped by Amazon.com, with "only 18 left in stock" when we looked and no list price in the buy box. It carries 4.5 across 18 ratings, the highest average in the range on far and away the smallest sample.

The heater count contradicts itself on the Amazon page. The listing is titled "...Indoor Sauna with 7 Carbon Heaters" and its first bullet says "features 6 carbon infrared heaters placed perfectly to distribute even heat". Both strings are Blue Wave's copy on Blue Wave's own listing. The manufacturer's product page says seven, the Amazon title says seven, and only the Amazon bullet says six, so seven is the better-supported number, but we would confirm it in writing before paying for a cabin whose own listing cannot count its heaters.

Pros

• Cedar rather than hemlock, which smells better and resists warping
• $744.25 cheaper on Amazon than direct, sold and shipped by Amazon
• 4.5 average, the best in the lineup
• Corner footprint fits a room better than a flat-backed cabin
• 1,805 watts for three seats, a better ratio than the Coronado's 1,725 for two

Cons

• 18 ratings is too few to tell you much, and we are not going to pretend otherwise
• Requires a 20A circuit, so budget for an electrician unless you already have one
• Its own Amazon listing says seven heaters in the title and six in the bullets
• $1,235.75 more than the Coronado for one more seat

Check price →

Best for: a three-person cedar cabin, if the 140F ceiling suits you, the thin review record does not bother you, and you have or will pay for a 20-amp circuit.

Tucson, 4-Person Hemlock: $3,315.99 Or $3,701.30, And They Are Not The Same Cabin

The four-person cabin, with two live Amazon listings at different specifications. This is not a mystery to solve before you order; it is a choice to make.

Listing one, B0063E9EW2, item model BSA2420, $3,315.99 against a $3,799.99 list, 3.9 across 14 ratings, "only 6 left in stock", sold by Amazon. Its bullets publish nine carbon heaters, 1,600 watts, up to 141F, 59 x 59 x 75 inches, 400 pounds, and 120V / 15A.

Listing two, B00FX6RXJ2, titled "Blue Wave 4Pers Corner Carbon Sauna", $3,701.30. Its bullets publish ten carbon heaters, 2,270 watts, up to 140F and 120V / 20A — which is, to the watt and the amp, the specification of the Tucson that Blue Wave sells on its own site today as item SA2420DX for $4,005.99. It usually ships in 6 to 7 days, and the shipper and seller is a third party, KART IT, not Amazon. We found no customer ratings on it at all.

So both configurations are on sale on Amazon right now, simultaneously. The nine-heater 15A version is the cheaper one, is fulfilled by Amazon and has the review record such as it is. The ten-heater 20A version matches the maker's current spec, costs $385.31 more, comes from a seller we know nothing about and has no reviews. Blue Wave's own shop lists only the ten-heater DX, so the nine-heater cabin appears to be the older build still in Amazon's inventory rather than a different product line.

The figure that matters is the electrical one, and now you can choose it deliberately. If your room has an ordinary 15A receptacle, the $3,315.99 nine-heater listing is the one that will plug in. If you want the 2,270-watt cabin, you need a dedicated 20A circuit, and you are buying it either from a third-party seller at $3,701.30 or from Blue Wave at $4,005.99. Either way, ask for the item number in writing before you pay, because the two listings share a name.

Pros

• Genuine four-person footprint
• Both configurations undercut the manufacturer's $4,005.99
• The 20A version is now buyable without the direct markup

Cons

• Two listings, two specifications, one cabin name
• 3.9 across 14 ratings is the weakest record in the lineup, and the 20A listing has none
• The 20A listing is third-party and slow to ship
• At 59 x 59 inches it needs real floor space
• 140F ceiling, with four bodies to heat

Check the 15A listing →    Check the 20A listing →

Best for: four people, once you have decided which circuit you are feeding.

The One Listing We Would Not Touch

There is an Amazon listing titled "Heatwave 1-Person Hemlock Sauna w/ Carbon Heaters" at $2,468.90. It carries no customer ratings at all, every star band reading 0%, and the page we read showed no Amazon-fulfilled offer in the buy box. It is $468.91 more than the two-person Coronado.

Blue Wave's current sauna list has no one-person cabin on it. The nearest thing is the 1-2 person Majestic at $1,999.99 direct, with five carbon heaters and 1,230 watts. We have left the Amazon listing unlinked and we would leave it alone. A one-person cabin priced above the two-person cabin from the same brand, with no review record and no counterpart on the maker's own shelf, is not a deal with a catch, it is just a worse purchase.

The Models You Can Only Buy Direct

Fourteen of the twenty cabins had no Amazon listing we could find, which means list price from a dealer-focused shop or nothing. Here are the ones worth naming, with what Blue Wave publishes about them.

• Sante Fe, item SA2412DX, $3,579.99. Seven carbon heaters placed for 1,805 watts, up to 140F, interior 49in x 49in x 68.5in H, 120V / 20A. The three-person corner cabin, and the page where Blue Wave publishes the HeatWave wavelength range as 5 to 12 microns.
• Klondike, item SA1318, $4,478.99. Four-person cedar, nine carbon heaters, 2,220 watts, up to 140F, 120V / 20A.
• Cedar Elite 3-4 person, item SA1315, $4,497.99. Nine carbon heaters, 2,140 watts, up to 140F, 120V / 20A, with a Bluetooth touchscreen control pad rather than the LED pads on the cheaper cabins.
• Cedar Elite 4-5 person, item SA1322, $5,113.99. Nine carbon heaters, 2,410 watts, up to 140F, 120V / 20A.
• Great Bear, item SA1323, $5,949.99. The top of the range: six-person cedar, ten low-EMF carbon heaters, 2,700 watts, up to 140F, and the only cabin here that needs 240V / 20A. That is a dryer or range circuit, not an outlet.
• Sirona 3-person, item SA7008, $4,379.99, and Sirona 4-person, item SA7009, $4,938.99. Eight carbon heaters each. These two pages are the thinnest in the range: the Details list is a single line about the warranty, and neither page publishes a wattage, an amperage or a maximum temperature. The Sirona 3 does have an Amazon listing, B0CB75ZH4Y, and it reads "Currently unavailable. We don't know when or if this item will be back in stock", so there is no price and no seller on it to quote. Its bullets claim eight carbon heaters and heating up to 140F.
• Majestic series, items SA3202 at $1,999.99, SA3209 at $2,887.99 and SA3212 at $2,991.95. Five, six and seven carbon heaters at 1,230W, 1,725W and 1,740W. None of the three publishes a maximum temperature. The SA3212 is the one to read twice: it needs 120V / 20A and Blue Wave's own bullet says it "uses a non-standard UL approved plug, which may require electrical modifications".
• Buena Vista carbon (SA2402, $2,603.99), Coronado ceramic (SA2406, $2,754.99) and the HeatWave 2-person 6-carbon cabin (SA8000, $3,239.90). All 120V / 15A, all 140F, and all priced above the Coronado carbon's Amazon figure while offering less.

Two of the cabins we previously could not find on Amazon turned out to be there under different names, and that is the useful lesson rather than a footnote. The Monticello is listed as "Montecillo" (B0063E9EMM) at $3,370.99, sold and shipped by Amazon.com, 3.6 across 24 ratings, seven left when we looked. The Whistler is listed as "Whistler - 4 Person Corner Cedar Heatwave Sauna!" (B00R52X148) at $4,199.00 against a $4,513.95 list, 4.7 across three ratings, nine left. Both undercut the direct price. If you are shopping this brand, search the item number and the misspelling as well as the model name.

At $4,000 to $5,900 you are shopping against brands that publish EMF test results, heat-up times and a warranty you do not post to Illinois. We would not buy at the top of this range, and on the models with no Amazon listing we cannot earn a cent saying so, which is rather the point.

Monticello, 4-Person (SA2418): The Spec And The Sales Copy Disagree

Worth its own note, because the manufacturer's page contradicts itself about how many people fit.

Published specs: nine low-EMF carbon heaters, 2,200 watts, up to 140F, interior 68in W x 35in D x 68.5in H, 120V / 20A, bench-style rather than a corner unit. The Details list says "Seats up to four adults", and the Amazon listing agrees: "Comfortably seats up to 4 adults". But the Description paragraph on the same manufacturer page opens "Bring the resort home with this beautiful, three-person FAR infrared sauna".

Go with four. The spec block, the attributes and the Amazon bullets all say four, and a 68-inch-wide bench is a four-person bench. The "three-person" line is sales copy that nobody updated. We flag it because this is the second place in this review where Blue Wave's own two descriptions of one product do not match, after the Hudson Bay's six-or-seven heaters, and that pattern is the thing to take away: on this brand, prefer the spec list to the prose, and get the item number in writing.

Check price →

The Warranty: Post A Card Within 30 Days Or You Do Not Have One

Blue Wave links the same warranty PDF from each product page. It is worth four minutes of your time before you buy, because several of its terms are unusual and two of them are the kind people discover at the worst moment. Everything in this section is quoted from that document, which carries a revision date of October 2016.

The headline cover. Seven years limited on the wood structure. Five years on heating elements and all electronics. One year on the radio or CD player. Ninety days on the light bulbs.

You have to register it, on paper. The warranty card "must be filled out completely and returned within thirty (30) days from date of purchase" to receive the warranty, posted to Blue Wave Products, 1745 Wallace Ave. Suite B, St. Charles, IL 60174. There is an information line, 800-759-0977. In 2026, a mail-in card is an easy thing to skip, and skipping it is the difference between a seven-year warranty and none.

Indoor use only. "This sauna is intended for INDOOR USE ONLY, outdoor installation of the sauna WILL VOID THE WARRANTY." Putting it on a non-approved surface or applying lacquer or paint voids it too. Plenty of people buy an infrared cabin for a covered patio or an unheated garage. Read that sentence twice first.

It ends if you move. The warranty "becomes valid at time of purchase and terminates either by specified time frame listed above, owner transfer, or relocation". Non-transferable is normal. Terminating on relocation is not, and we have not seen it in another sauna warranty.

What it will not pay for. No refunds, ever: claims are resolved by repair or by replacement parts "at the sole discretion of Blue Wave Products". Shipping and insurance are the purchaser's responsibility. So is labour for removal, installation or replacement. No claim is honoured without a receipt showing date, price and the dealer. Private non-commercial use only, and non-Blue Wave parts or unauthorised repairs void it. Surface cracks and colour change count as normal wood behaviour rather than defects, which is standard and fair.

One more thing we checked, because it bears on all of the above. The Manual link on Blue Wave's Coronado page and the Manual link on its Buena Vista page point at the same PDF, and that PDF returns a 404. The warranty PDF and the two spec-sheet links on the same pages all load, and so does the Manual link on the Hudson Bay page, so this is one broken file rather than a broken shop. It is still the worst file to lose: the warranty requires the sauna to be "used as directed in the Product Operation Manual", and for the two cheapest cabins that document is the one thing you cannot read before buying. Ask for it by email if the terms matter to you.

The 20-Amp Trap

Worth isolating, because it is the one thing here that can turn a $3,900 sauna into a $4,600 sauna, and because it catches far more of this range than it first appears.

Eight cabins run on 120V / 15A, an ordinary household outlet: the Majestic 1-2 person and the Majestic 2-person premium, both Buena Vistas, both Coronados, the SA8000 and the Yukon at $3,529.99. That is the main practical argument for the Coronado over anything bigger.

Eight cabins require 120V / 20A: the Majestic 3-person corner, Sante Fe, Monticello, Hudson Bay, the current Tucson SA2420DX, Klondike, and both Cedar Elites. The Whistler is published as 120V / 19A, which is an unusual figure to publish and we have quoted it as written; it sits one amp under the 20A line, so it is not one of the nine above, but it is not a 15A cabin either, so plan for a 20A circuit. The Great Bear needs 240V / 20A, a different class of job again. The two Sirona pages publish no amperage at all, so we cannot tell you, and at $4,379.99 and $4,938.99 that is a poor place to leave a buyer guessing.

A standard US bedroom or garage receptacle is on a 15A circuit, and a 20A appliance on a 15A circuit trips breakers at best. The Majestic SA3212 goes further and warns on its own product page that its plug is non-standard and "may require electrical modifications". Expect to pay an electrician for a dedicated circuit, get that quote before you commit to a four-person cabin rather than after it is in pieces on your garage floor, and read the amperage column in the table above as part of the price.

Buyer's Guide: Getting This Right

Carbon over ceramic, at this price. The evidence in this range is unusually clean on that point: the ceramic Buena Vista has 14 negative temperature mentions out of 19, the carbon Coronado has 18 out of 84. Carbon panels are larger and spread the heat across more of the cabin wall, which is what you want when the ceiling is only 140F.

Count the watts per person. The Coronado puts 1,725 watts into a two-person cabin. The Buena Vista puts 1,050 into one Blue Wave also calls two-person. That ratio, not the brand name, is what decides whether you sit in a warm box or a hot one. By that measure the Hudson Bay's 1,805 watts across three seats and the Great Bear's 2,700 across six are the two ends of the range.

Check the outlet before the model. See above. Half of this lineup needs a circuit you probably do not have, and it is cheaper to pick a 15A cabin than to add a 20A one.

Search the item number, not the model name. The Monticello is spelled "Montecillo" on Amazon, the Tucson has two listings at two specifications, and the Hudson Bay's own listing disagrees with itself about heater count. Searching SA2418 or B0063E9EMM finds things that searching "Monticello sauna" does not, and the difference was $501.00 on that one cabin.

Do not expect an EMF number. Blue Wave says "low-EMF" on the carbon models and publishes no figure on any page we read, its own or its Amazon listings. Several competitors on the same Amazon search page publish a milligauss range. If a measured EMF figure is a requirement for you, this brand cannot satisfy it on paper, and we have gone through the brands that do publish one in the best low-EMF infrared saunas.

Buy on Amazon where the listing exists, and keep the receipt. The gap runs from $888.00 on the Coronado down to $339.99 on the Whistler, always in Amazon's favour. Then post the warranty card, because the terms above make the paperwork worth more than it looks.

Set expectations at 140F. If you have used a traditional sauna and loved the heat, read JNH Lifestyles and the rest of the infrared field with the same ceiling in mind, or go traditional. No HeatWave cabin is going to give you 180F, and the only HeatWave products specified above 140F are $179.99 tents.

FAQ

Are Radiant Saunas any good?

One of them is. The carbon-heater Coronado at $1,999.99 on Amazon is a reasonable two-person far infrared cabin: six heaters, 1,725 watts, a standard 120V/15A plug, and 4.4 across 318 reviews with 110 of 116 assembly mentions positive. The cheaper ceramic Buena Vista is not, with 14 of its 19 temperature reviews negative and every one of its seven build-quality reviews negative. Above $3,000 the range is outclassed by brands that publish EMF figures and heat-up times. So: good at the bottom of the lineup, poor value at the top.

Who makes Radiant Saunas?

Blue Wave Products, which sells its sauna line under the HeatWave brand. The Amazon listings name Blue Wave Products as the manufacturer and sit under a Blue Wave brand store, model numbers run BSA or SA (BSA2409, SA2400), and the manufacturer's own shop is bluewaveproducts.com, with a warranty address in St. Charles, Illinois and claims handled at a splashnetxpress.com email. "Radiant Saunas" is the retail brand name those products have been sold under, and many Amazon listings have since been retitled "Heat Wave" instead.

How many models are in the Radiant Saunas range?

Blue Wave's sauna collection listed 20 wood cabins and five portable tent saunas on 6 October 2026, from a $1,999.99 1-2 person Majestic to a $5,949.99 six-person Great Bear, plus tents at $179.99 to $239.99. Only six of the 20 cabins had an Amazon listing we could find: Coronado carbon, Buena Vista ceramic, Hudson Bay, Monticello (listed as "Montecillo"), Tucson (two listings, two specifications) and Whistler. A seventh, the Sirona 3-person, has a listing that reads "currently unavailable". The full table with item numbers, wattage and amperage is at the top of this review.

Is Radiant Saunas the same as Radiant Health Saunas?

No, and this catches people out. Radiant Health is a separate company whose Pause saunas listed at $5,840.00 to $7,760.00 on 6 October 2026, while Blue Wave's HeatWave cabins list at $1,999.99 to $5,949.99. The confusion is worse than a similar name: radiantsaunas.com redirects to radianthealth.com, so the obvious URL for one brand serves the other. Check the model number. A BSA or SA number is Blue Wave. The Pause line is Radiant Health.

How hot does a Radiant Saunas infrared sauna get?

Up to 140F, if it is a wood cabin. Sixteen of the 20 cabins publish a maximum temperature and all sixteen publish 140F, from the $2,470.99 Buena Vista to the $5,949.99 Great Bear. The three Majestic-series cabins and the two Sironas publish no maximum temperature at all. The exception is the portables: the Liberty, Valerian, Rejuvenator and Spirit Deluxe tents are all published at up to 150 degrees F, ten degrees above the cabins, on 900 to 1,000 watts. The Amazon listings for the Buena Vista and the older Tucson claim 141F in their bullets, contradicting the manufacturer's pages, and we would not plan around the extra degree. For comparison, a traditional stove sauna typically runs 150F to 195F, so if you are used to that heat, a HeatWave cabin will feel mild.

Are Radiant Saunas cheaper on Amazon or on the manufacturer's site?

Amazon, on every cabin sold in both places. On 6 October 2026 the Coronado was $1,999.99 on Amazon against $2,887.99 as item SA2409 on bluewaveproducts.com, a difference of $888.00. The Buena Vista was $1,574.99 against $2,470.99, a gap of $896.00. The Hudson Bay was $3,235.74 against $3,979.99, the Monticello $3,370.99 against $3,871.99, and the Whistler $4,199.00 against $4,538.99. The Amazon price is not a flash sale either: the price history for the Coronado's ASIN records $1,999.99 since 4 February 2026.

What is the EMF level of a Radiant Saunas sauna?

Not published. Blue Wave describes the carbon heaters as "low-EMF" on its product pages and gives no milligauss figure on any page we read, and we found none on the Amazon listings either. That is a gap rather than a scandal, since carbon panels generally measure lower than older ceramic rod heaters, but it means there is nothing to compare. Several competing cabins on the same Amazon search page publish a 0 to 5 mG range. If a measured number matters to you, this brand cannot give you one.

What warranty do Radiant Saunas come with?

Seven years limited on the wood structure, five on heating elements and electronics, one on the radio or CD player, and 90 days on the light bulbs. Three conditions matter more than the headline. You must post a completed registration card to Blue Wave in Illinois within 30 days of purchase to have the warranty at all. Outdoor installation voids it entirely. And it terminates on owner transfer or relocation, so moving house ends your cover. Claims are repair or replacement only, with no refunds, and shipping and labour are yours to pay.

Do Radiant Saunas need special wiring?

Half the range does, and it is the most expensive thing to get wrong. Eight cabins run on 120V / 15A and need nothing: the Majestic 1-2 person and the Majestic 2-person premium, both Buena Vistas, both Coronados, the SA8000 and the Yukon. Eight require 120V / 20A, including the Monticello, Hudson Bay, Sante Fe, Klondike, both Cedar Elites and the current Tucson SA2420DX. The Whistler is published as 120V / 19A. The Great Bear needs 240V / 20A. The Majestic SA3212 warns on its own page that its plug is non-standard and may require electrical modifications, and the two Sirona pages publish no amperage at all. Both Tucson listings on Amazon are live at once, one at 15A and one at 20A, so confirm the item number before you order.

How long does a Radiant Saunas sauna take to heat up?

Blue Wave publishes no heat-up time for any of the 25 products in its sauna range, so the only figures available are owners' and they vary with the room. On the Coronado, Amazon groups 84 reviews under heating time, 66 positive and 18 negative; one owner measured 136F in about 25 minutes with the panel set to 140F, one reports about 15 minutes, and one reports 30 to 40 minutes to the top temperature. We have not verified any of those individually. On the Buena Vista the picture is worse, with one owner reporting over an hour to reach 118F. Expect 20 to 40 minutes in a heated room.

Our Verdict

We would buy the Coronado, on Amazon, and nothing else in this range. At $1,999.99 it is six carbon heaters and 1,725 watts in a two-person hemlock cabin that plugs into a normal outlet, with the only review record here big enough to trust, and it costs $888 less than the company's own shop wants for the same item number. We would skip the Buena Vista at any price: 14 of its 19 temperature reviews are negative and all seven build-quality reviews are, and $425 saved is a poor trade for a sauna that may not get hot. Above $3,000 we would shop elsewhere, because paying $3,900 to $5,900 for a 140F ceiling, no published EMF figure, a 20-amp circuit you have to pay an electrician to add and a warranty that ends when you move house is not a good deal.

If you do shop up the range, shop it carefully. Search the item number as well as the model name, because the Monticello hides behind a misspelling and the Tucson has two live listings at two different specifications. Prefer the spec block to the sales copy, because on this brand the two have disagreed twice in one lineup. Post the registration card the week it arrives, and keep it indoors.

More on where this brand sits against the rest of the field in our 2-person infrared sauna comparison and the full sauna hub. More on who we are and what we actually own on our about page.