Sauna · Review

Sun Home Solstice Infrared Sauna review: 1, 2, 3 and 4-Person

Last updated October 2026· Verified against the manufacturer's product pages

The Solstice is the cheapest sauna Sun Home makes, and it comes in four sizes: 1-person at $4,999, 2-person at $5,599, 3-person at $6,299 and 4-person at $7,799 (list prices run $600 to $800 higher). It is built from the same parts as the brand's Equinox: kiln-dried eucalyptus, tool-free magnetic assembly, chromotherapy lighting, Bluetooth audio, and the same 7-year warranty on cabinetry and heaters. What you give up is the heat source. The Solstice is far-infrared only, with a published 140°F ceiling, where the Equinox adds full-spectrum heaters and reaches 165°F. At the two sizes both cabins share, that difference costs $500 or $700. This review covers all four sizes, the one that needs a 240V circuit, and when the Equinox is the better buy.

Specifications, all four sizes

Everything below comes from Sun Home's product pages and spec sheets as of October 2026. Where a figure is not published we say so rather than guess.

Solstice or Equinox

Put the 2-person Solstice and the 2-person Equinox side by side and you cannot tell them apart from the outside. Same 50.9 by 45.9 inch footprint, same 77.7 inch height, same 28 inch door, same eucalyptus, same magnetic panels, same NEMA 5-20 plug on a dedicated 20-amp circuit. The 3-person sizes match the same way at 62.3 inches wide. The Solstice even has more heaters at each size: nine against six on the 2-person, ten against seven on the 3-person.

The difference is what those heaters are. Every Solstice panel is far-infrared, the long wavelength that heats skin and the air near it. The Equinox swaps two of its panels for 500-watt full-spectrum units that add near and mid infrared, and it runs hotter, with a 165°F rating against the Solstice's 140°F. Sun Home charges $500 for that at 2-person and $700 at 3-person.

Whether that is worth paying comes down to how you use a sauna. Far-infrared is the classic infrared session: mild air temperature and a heavy sweat without the cabin ever feeling hot the way a stove room does. If you have used an infrared cabin and never pushed the dial to its top, the Solstice gives you the same cabin for less. If you want the hottest session the brand sells, or you are buying partly for the near-infrared wavelengths that the recovery research tends to cite, the Equinox is the better cabin and the extra is small against the total. Our Sun Home Equinox review covers that side in full.

Two sizes have no Equinox to compare against. The 1-person Solstice at $4,999 is the only one-person cabin in Sun Home's infrared range apart from the $6,599 Pod, which adds red light. The 4-person at $7,799 is the cheapest cabin the brand sells for a family; the next step up is the Eclipse 4 at $12,999.

Installation reality

The 1-, 2- and 3-person Solstice each need a dedicated 120-volt, 20-amp GFCI circuit with a NEMA 5-20 outlet. That is the same requirement as the Equinox and the same catch: a standard household outlet is a 15-amp circuit shared with whatever else is on that breaker, and the 2-person alone draws 2,006 watts at full heat. If there is no dedicated 20-amp circuit where the cabin is going, budget an electrician visit, typically $200 to $600 in US markets.

The 4-person is a different job. It runs on 240 volts and needs a dedicated 20-amp circuit with a NEMA 6-20 outlet. Sun Home's spec panel for the 4-person reads "Dedicated 20 Amp GFCI Circuit" just like the smaller sizes; the outlet line says NEMA 6-20 without spelling out the voltage, and the only explicit "240V" is in the install notes further down the page, so it is easy to miss. Most homes do not have a spare 240V circuit in a spare room. Plan on the electrician, and plan on a higher quote than a 120V run.

Space planning is the same across the line: 4 inches of clearance on every side and 12 inches above the roof, a level finished floor, and an indoor or otherwise controlled room. Sun Home's warranty excludes damage from moisture, insects and rodents, so a patio or a damp garage is the wrong spot; the brand builds the Luminar for that. The panels ship flat by freight (Sun Home's own guide says to confirm whether delivery includes placement) and assemble with the magnetic Magne-Seal system, no tools, but the finished cabins weigh 428 to 779 pounds and the crates have to clear your doorways and stairs.

What Sun Home publishes, and what it does not

We have not tested a Solstice, so this section sticks to what the brand puts in writing. The spec panel on every size says 140°F (the 2-person page's own FAQ says about 145°F, so take 140°F as the firm figure). Heater counts, exterior dimensions and weights are on each product page. Total power draw, and the interior and bench dimensions for the 1-, 2- and 3-person, come from the 2-person page, Sun Home's own sizing guide and the spec sheets; the 4-person interior is not published anywhere. Warm-up time is not published; the spec sheet says it depends on room temperature. Owner ratings on Sun Home's own pages run 4.6 to 5.0 across the four sizes, on samples of 2 to 21 reviews, which is too few and too brand-hosted to lean on.

On EMF, the Solstice pages say "ultra-low EMF" and Sun Home uses a sub-0.5 milligauss badge across its infrared range. The testing Sun Home publishes is a summary of a Vitatech Electromagnetics report (VTE-3534), a brand-level test of a heating element under load: 0.6 to 4.0 milligauss at one foot, 0.3 to 0.9 at three feet, across the 120V and 230V heater configurations. Sun Home doesn't say how the badge relates to that range, and the full report isn't public. It is still a heater on a bench, not a meter in the seat of a finished Solstice with panels inches from your back. If a measured number is the reason you are shopping Sun Home, ask for a seat-position reading before you order. Our low-EMF sauna guide sets the Solstice beside what Clearlight and others publish.

The warranty is the Equinox warranty: 7 years on cabinetry and heaters, 3 on controls, 1 on glass and audio. Read the fine print on labor. For the Eclipse, Pod and Luminar, Sun Home covers labor and shipping for the first 90 days. For the Equinox and Solstice it never covers labor, and after 90 days it stops covering freight on parts as well. A failed heater panel in year three is a free part, shipping at your cost, fitted by you.

Which size to buy

1-person ($4,999). A 37.8 by 39.8 inch footprint that fits a spare corner, with a 32-inch bench and 70 inches of interior height. It is the right pick for one regular user in a small room and the cheapest Sun Home cabin there is.

2-person ($5,599).A 45-inch bench seats two adults upright, side by side, with no room to lie down. Sun Home's own sizing guide calls it spacious for one and fine for two of average build, which matches the numbers. This is the size most couples will choose, and the size where the Equinox question is sharpest at $500.

3-person ($6,299).Another foot of width and a 56.6-inch bench. Two broad adults sit without touching; three is the listed capacity, and Sun Home's own sizing guide calls it two comfortably. Depth and height are unchanged from the 2-person, so the $700 step buys shoulder room, exactly as it does on the Equinox.

4-person ($7,799). The odd one out in every way: 80.9 inches wide, 779 pounds, 240 volts, and the only Solstice with an L-shaped bench that reclines and comes out so one person can lie flat. If lying down in an infrared cabin matters to you, this is the only Solstice that does it, and at this price the only Sun Home cabin that does. Sun Home does not publish its interior dimensions; ask before ordering if a tall user plans to stretch out.

How it compares

Against the Equinox, covered above: same cabin, cooler heat, $500 to $700 less.

Against the 1-person cabins from smaller brands, the Solstice 1 is expensive. SaunaBox's Solara, for instance, lists at $2,799 with full-spectrum heaters, a built-in red light panel, a 150°F rating, a published Intertek EMF certificate and a standard 15-amp plug, in hemlock rather than eucalyptus and at 172 pounds against the Solstice's 428. We have not reviewed it, and the weight gap tells you something about the wall construction, but a 1-person buyer should know the $2,200 gap exists before paying Sun Home's price.

Against entry-tier Amazon cabins in the $1,800 to $2,800 range, the Solstice is buying heavier eucalyptus construction and a 7-year warranty. Those cabins are also far-infrared only, so on heat type alone the gap is smaller here than it is for the Equinox.

Against the Therasage Thera360 Plus portable at $1,428, the question is whether you can host a fixed cabin at all. Renters and anyone without a dedicated circuit should read our Thera360 Plus review first.

Who this is for

Buyers who have already decided on Sun Home for the eucalyptus build, the warranty and the EMF disclosure, and who do not need the hottest session or the full-spectrum wavelengths. Solo users in a small room are the clearest fit for the 1-person, since nothing else in the brand's infrared range is sized for one without red light. Families are the clearest fit for the 4-person, as long as a 240V circuit is possible where it will stand.

Who should skip it

• Anyone buying for the heat ceiling. 140°F is the top of the Solstice. Pay the $500 or $700 for the Equinox.
• Renters and apartment dwellers. The dedicated circuit needs landlord cooperation and the cabins weigh 428 pounds and up. The Thera360 Plus is the right category.
• Buyers who want red light built in. Chromotherapy is colored mood lighting. See our Sun Home Eclipse review for the cabin that has the real thing.
• Traditional sauna purists. No infrared cabin gives you steam off hot stones. Our infrared vs traditional comparison explains the difference before you spend five figures either way.

Frequently asked questions

The bottom line

The Solstice is the Equinox with cooler, far-infrared-only heat and a lower price, and that is a fair trade for a lot of buyers. The build, the warranty and the install requirements are the premium-tier package. What holds it back from the Equinox's score is the 140°F ceiling, a parts-only warranty, an EMF figure that comes from a heater test rather than a cabin, and a 4-person size whose 240V requirement is easy to miss on the product page. Buy the 2- or 3-person if a $500 to $700 saving matters more to you than the hottest setting. Buy the 1-person or 4-person because they are the only sizes Sun Home offers at those ends. Whichever size, confirm the circuit before you order.

Thermal Protocol may earn a commission if you buy through links on this page. This does not affect our rankings or picks.

For category context, see Best infrared saunas for home, where the Equinox is the premium-tier pick, and Saunas for apartments if a dedicated circuit is the open question.