Celsium sauna comparison
The Celsium Ula Mini 2-Person Outdoor Sauna and the Celsium Ula Micro Compact 2-Person Outdoor Sauna are the two Ula models we carry: outdoor saunas for up to two, handcrafted in Lithuania by Celsium, each with ThermoWood® inside and out, a rounded profile and a full bronze-tinted glass front. The Ula Mini is the longer and lower of the two; the Ula Micro Compact stands taller on a smaller footprint. Sauna Republic is an authorized Celsium dealer.
The Ula Mini and Ula Micro Compact at a glance
Both seat up to two and, per Celsium's US listings, share ThermoWood® inside and out, a full bronze-tinted glass front and a 2-year warranty. They differ in size, bench layout and heater output. Our Celsium sauna buying guide compares all five Celsium saunas we carry; this comparison goes further into these two.
| Model | Exterior (W × L × H) | Footprint | Interior (Celsium's product sheet) | Benches (Celsium's drawing) | Minimum foundation (Celsium's product sheet) | Glass and door | Heater output (Celsium's product sheet) |
|---|---|---|---|---|---|---|---|
| Celsium Ula Mini 2-Person Outdoor Sauna | 49" × 81" × 83" | About 27.6 sq ft | 41.3" × 76.8" × 74.8" | L-shaped upper bench and a lower bench | 47.2" × 78.7"; rests on base runners and can overhang slightly | Full glass front on the 81" side; central door | 6 kW |
| Celsium Ula Micro Compact 2-Person Outdoor Sauna | 49.2" × 53.1" × 90.6" | About 18.1 sq ft | 39.4" × 49.2" × 82.7" | Upper bench and a lower step | 39.4" × 39.4"; rests on base runners and extends past a base this size | Full glass front on the 53.1" side; central door | 3.5 to 4.5 kW |
Footprints are calculated from the exterior dimensions. The heater is sold separately on both.
Shape and size: rounded corners or a capsule
Rounded corners give the Ula Mini its distinctive look, and we list it with our cube saunas. An arched top and rounded base give the Ula Micro Compact its capsule shape, and we list it with our pod saunas.
The two are the same width, 1,250 mm, which the product pages round to 49" and 49.2"; the difference is length against height. The Ula Mini measures 49" W × 81" L × 83" H, a footprint of about 27.6 sq ft. The Ula Micro Compact measures 49.2" W × 53.1" L × 90.6" H, about 18.1 sq ft, the smallest footprint of the five Celsium saunas we carry, and Celsium's product sheets give it the taller interior too: 82.7" against 74.8".
If ground area is the tighter limit at your site, the Ula Micro Compact takes less of it; if overhead height is, the Ula Mini is the lower cabin. Requirements for outdoor structures and electrical work vary by location, so check with your local building department before installation.
Both offer the ThermoWood® exterior in Beige, Grey, Ebony, Teak or Hazel. Both are crafted from natural wood, so the final color and grain may vary slightly from the images.
The foundation and the base runners
Each needs a solid, level foundation of at least the size Celsium's product sheet specifies, ready before delivery so the kit can be assembled straight onto it. In both cases the cabin rests on base runners within that area, so the minimum base is smaller than the cabin itself:
How to build the foundation depends on your site, so ask a local contractor; our installation directory lists contractors near you. If the sauna will stand on a deck, patio, rooftop or other raised surface, that surface must carry the sauna's weight plus its bathers, and a qualified professional should check it before installation. Our guide to planning a Celsium outdoor sauna covers the foundation, delivery, assembly and the heater circuit.
Benches and interior
Both seat up to two, side by side on the upper bench, facing the glass. On Celsium's drawings, the upper bench along the back wall is 19.7" deep in both; the layouts differ:
The drawings don't state the finished seat heights; if they matter to you, we confirm them with your quote. Celsium's US listings specify ThermoWood® inside and out for both, with aspen benches in the Ula Mini and an aspen bench in the Ula Micro Compact, and Celsium's product sheets give the wall boards a thickness of 44 mm (about 1.7"). Our guide to the best wood for a sauna covers thermally modified wood and aspen. Both include an indoor LED strip, installed on site.
The full glass front and the central door
Both come with a full bronze-tinted glass front, per Celsium's US listings, and a full-height tempered glass door at its center; Celsium's product sheets give the door as 8 mm tempered glass.
On both, the entrance faces the same way as the view, so decide which way the glass will face before you set the foundation.
Some of Celsium's images, including the Ula Mini's color renderings, show a timber front with a central glass door. Both models come with the full bronze-tinted glass front, and images are for illustration purposes only.
Heater output and electrical service
Neither model includes a heater: it is sold separately, and our specialists pair the heater, control and stones with your cabin and your electrical service. Each product page gives Celsium's figure:
The heaters in Celsium's photos are sold separately and are not a recommended pairing for the cabin they appear in. The electrical service depends on the heater you choose: the heater is hardwired on a dedicated circuit, and a licensed electrician should size the breaker and wire to the heater's nameplate rating. Our installer and electrician directory lists electricians near you.
When you request pricing, we put a heater, control and stones on the quote, sized to the cabin and to your electrical service, or check a heater you already have against the cabin before anything ships. General sizing rules, such as those in our heater sizing guide, can give a different figure from Celsium's; for these two cabins, the Celsium figures on each product page apply. For running costs, see how much electricity a sauna heater uses.
Choosing between the two Ula models?
Tell us which model you are considering and where it will stand, and we confirm your site, power supply and configuration, then send a delivered price with the heater pairing and financing options.
Get PricingHow both compare with the Jonas Mini
The third two-person Celsium sauna we carry is the Celsium Jonas Mini 2-Person Outdoor Sauna. The Ula Mini's product page compares the two. Both seat up to two. The Ula Mini has a rounded profile, ThermoWood® inside and out and a full glass front on a 49" × 81" footprint; Celsium's product sheet gives it 44 mm wall boards and recommends 6 kW of heater output. The Jonas Mini sits on an 85" × 60.4" footprint with an aspen interior; Celsium's Jonas Mini sheet lists 5 cm PIR insulation in the walls, ceiling and floor and recommends 4.5 to 6 kW.
The Ula Micro Compact also has a rounded profile, ThermoWood® inside and out and a full glass front, on a 49.2" × 53.1" footprint. Other differences from the Jonas Mini:
Our Celsium sauna buying guide sets these three two-person models side by side, and our Jonas comparison covers the three Jonas models we carry.
Frequently asked questions
Which needs less space, the Ula Mini or the Ula Micro Compact?
The Ula Micro Compact: 49.2" × 53.1", a footprint of about 18.1 sq ft, against 49" × 81" and about 27.6 sq ft for the Ula Mini. Celsium's product sheets specify a solid, level base of at least 39.4" × 39.4" for the Ula Micro Compact and 47.2" × 78.7" for the Ula Mini. Each cabin rests on base runners within that area, so on a minimum-size base the Ula Micro Compact's body extends past the edges and the Ula Mini's can overhang slightly. The Ula Micro Compact stands taller: 90.6" against 83".
Is a heater included with either model?
No. On both, the heater is sold separately, and our specialists pair the heater, control and stones with your cabin and your electrical service. Celsium's product sheets recommend 6 kW of heater output for the Ula Mini and 3.5 to 4.5 kW for the Ula Micro Compact.
How are they delivered?
The Ula Mini and the Ula Micro Compact both ship flat-packed and are delivered securely on a pallet; Celsium's product sheets list the same flat-pack pallet size for each, about 43.3" × 94.5" × 47.2". Delivery is curbside, and liftgate service can be added so the carrier lowers the pallet to the ground. Moving the components from the curb to your site is up to you, so plan for helpers or equipment. We confirm the shipping weight and pallet details with your quote.
How long does assembly take?
Celsium doesn't publish an assembly time. Each kit arrives with Celsium's step-by-step installation guidelines; you can assemble it yourself or hire a local contractor, and a licensed electrician connects the heater. Our installation directory lists contractors and electricians near you.
What warranty comes with them?
Celsium's US listings give the Ula Mini and the Ula Micro Compact a 2-year warranty. As an authorized Celsium dealer, we handle warranty support with you directly.
How do I get a price on either model?
Tap Get Pricing on the product page, call (302) 273-0861 or email info@thesaunarepublic.com. We confirm your site, power supply and configuration, then send a delivered price with the heater pairing and financing options. Shipping is complimentary to the continental US and included in your quote; deliveries to Alaska, Hawaii and Puerto Rico are quoted separately. HSA and FSA eligibility can be checked at checkout by selecting Truemed (see paying with HSA/FSA funds), and you can review our return policy before you order.
Get pricing on the Ula Mini or Ula Micro Compact
Tell us the model, the exterior color and where it will stand, and we confirm your site, power supply and configuration, then send a delivered price with the heater pairing.
Request pricingBrowse the five Celsium saunas we carry in Celsium Saunas, or compare other brands in 2 Person Outdoor Saunas, Outdoor Saunas and Traditional Saunas.
Celsium and ThermoWood® are trademarks of their respective owners. Sauna Republic is an authorized Celsium dealer. This article is for educational purposes and is not medical advice. If you are pregnant, managing a heart, blood-pressure or circulation condition, or taking medication, consult a healthcare professional before using a sauna.
