Clearlight Premier is the simpler far-infrared choice; Sanctuary adds full-spectrum front heaters and smartphone control. My earlier preference was Premier for buyers who wanted a straightforward cabin and were watching their budget. Sanctuary can justify a higher price if you value its layout and features, but the full-spectrum label alone does not establish better health results.
Disclosure: I promote Clearlight and other sauna brands and may earn a commission through affiliate links. My preferences can differ from a salesperson’s recommendation. The specifications below are current manufacturer information, not a new hands-on test.
Premier 2 vs Sanctuary 2: specifications side by side
The two-person models show the practical differences clearly. Both need a suitable installation; they do not have identical electrical requirements.
| Specification | Premier 2 | Sanctuary 2 |
|---|---|---|
| Heating | Far infrared | Far infrared plus two 500 W full-spectrum front heaters |
| Exterior W × D × H | 50 × 44 × 76 in | 51¾ × 47¾ × 77 in |
| Interior W × D × H | 45 × 40 × 71 in | 46½ × 44¼ × 72½ in |
| Bench W × D | 43 × 22 in | 44½ × 21¾ in |
| Listed power | 120 V; 1,720 W; 14.5 A | 120 V; 2,260 W; 18.83 A |
| Plug | NEMA 5-15P | NEMA 5-20P |
| Listed weight | 395 lb | 450 lb |
| Wood options | Mahogany or basswood | Mahogany or basswood |
Sources: Premier 2 and Sanctuary 2. Confirm the specification sheet for the exact generation and market you are buying.
Which feels roomier?
Sanctuary 2 has more listed interior depth and a slightly wider bench. That is a measurable difference, but it does not turn a two-person cabin into a comfortable reclining sauna for every adult. Compare the bench against your own seated dimensions, including any backrest you intend to use.
Mark both footprints on the floor. Allow for the door swing, assembly and service access. The product pages recommend space around a built-in installation; ask for the current manual before designing an alcove. An extra few inches can determine whether you can assemble or maintain the sauna without moving it.
Heating: what are you paying for?
Premier focuses on far infrared. Sanctuary adds full-spectrum equipment at the front. That distinction should be evaluated as hardware and layout, rather than a promise that one cabin will “detox better.” My earlier recommendation of Premier reflected a preference for a simpler setup, not proof that every person gets identical results from every model.
Ask for a demonstration of the controls and the heating experience. The thermostat reading is not a complete description of how heat feels at the bench. Room temperature, heater placement and the user’s position all affect the experience. This comparison does not report a newly measured warm-up race between the two cabins.
Controls, connectivity and accessories
Sanctuary’s product page advertises smartphone control. Decide whether starting or controlling the cabin from a phone would improve your routine, and ask how it operates without the app. If you prefer minimal connectivity, get written instructions for the exact hardware rather than relying on an older review.
Both product pages list optional red-light upgrades. Colored cabin lighting should not be confused with a dedicated red-light device. Ask which accessories are included in the price, what their operating limits are and whether the warranty covers them separately. A package photograph can show equipment that is not part of the base quote.
Electrical work can change the value comparison
The Sanctuary 2 listing specifies a 120 V / 20 A outlet; Premier 2 uses a different plug and lower listed power. Give the model requirements to an electrician before assuming an existing receptacle will work. Do not solve a mismatch with an improvised adapter or extension cable.
For either model, include warm-up time when estimating electricity use. Multiply the rated kilowatts by operating hours and your utility rate for a simple continuous-power estimate. Actual usage depends on heater cycling and conditions. Electrical installation can matter more to the initial budget than small differences in ongoing electricity use.
Warranty and delivered price
Get both quotes with the same delivery, assembly and accessory assumptions. Ask for the applicable residential or commercial warranty, including the labor term and exclusions. A “lifetime” headline does not tell you how every accessory, shipping charge or installation visit is handled. The Clearlight service portal provides current warranty and owner information.
Compare the installed total, not just the monthly financing amount. If Premier already meets your seating and feature requirements, the money saved may be more useful in a better installation location or simply a lower overall budget. If Sanctuary’s layout and controls are features you will use regularly, price that benefit explicitly.
Which would I choose?
- Start with Premier if your priority is a straightforward far-infrared cabin and you do not need Sanctuary’s added equipment.
- Consider Sanctuary if you want its full-spectrum front heaters, control features and different cabin layout, and the complete installed cost works for you.
- Choose a different size first if either two-person bench is too small. Fit is a more immediate issue than upgrading the feature list.
Common questions
Is Sanctuary automatically better because it is full spectrum?
No. It has different equipment. Whether that equipment is worth the price depends on your preferences and use. Product specifications alone do not establish superior medical outcomes.
Can both two-person models use the same outlet?
Do not assume so. Their listed plugs and power requirements differ. Use the current electrical instructions and an electrician’s assessment for your location.
Does this comparison also apply to outdoor models?
No. Indoor and outdoor models have different placement and warranty requirements. Select a model expressly approved for your installation.
For the original review evidence, see the Clearlight sauna review. For alternatives, read Clearlight vs Sunlighten or return to the complete buying guide.