N 250 thermowood barrel sauna – changing room and generous bench area
The Bloomcabin N 250 is a roomy barrel sauna for people who want more freedom to move than a compact two-person model provides, plus a separate changing room. It suits couples, families and small groups who enjoy regular sauna sessions together. Its large bench area allows varied seating, while the entrance room separates the hot cabin from the outdoors. This creates a useful buffer without the footprint of a large sauna building. Even with its compact barrel profile, the N 250 needs a carefully prepared site with room for access, assembly and future care. Exterior and interior dimensions are explained below.
Use the notes below to assess the space, site, heating arrangement, assembly and ongoing care. To compare other sizes or styles first, browse the Bloomcabin sauna range.

More room than the N 210, without the scale of a large sauna house
The N 250 combines the familiar barrel shape with a distinct changing room and sauna cabin. The extra space is noticeable when several people are seated, change position or prefer not to sit closely together during a longer session. It also gives two users more breathing room than exterior measurements alone suggest. Consider how you like to use a sauna, not only the usual number of bathers. Those who move around, value personal space or stay longer will gain most from the additional room.
This model remains far more manageable than a large garden building with a sauna room. The bench area is approximately 180 × 198 cm, allowing different seating arrangements and greater separation between users. Check that this area suits your height, preferred posture and desired personal space. Dimensions show the available area, but cannot define how spacious it will feel to you. It may be more capacity than a mainly solo household needs, yet becomes a valuable comfort feature for regular shared use.
The changing room serves a different purpose from the heated cabin. It creates a protected transition on the way in and out, reducing direct air exchange when the outside door opens. Keep the entrance and door swing clear of belongings. Plan a suitable place to rest and cool down outside the sauna, since the compact changing room is not designed for that purpose.
How to assess dimensions and layout
The important balance is between exterior size, usable bench area, changing room and conditions at your planned location.
Approx. 251 × 210 × 222 cm
The N 250 provides a generous interior while retaining a relatively compact barrel form. Check the length, width and height individually at the intended site; sufficient floor area alone does not confirm adequate side or overhead clearance.
Integrated changing room
The separated entrance area makes arriving and leaving easier, and means the exterior door does not open directly into the heated sauna cabin.
Approx. 195 cm interior height
Interior height helps you judge headroom while standing and rising from the benches. Taller users should compare it with their own height and normal movements. Floor area alone is not enough for this assessment.
Approx. 12 m³ interior volume
The stated interior volume is an important reference when selecting the intended heating solution and also affects the sense of space in the N 250. It does not describe usable seating area, so assess the bench dimensions and interior height as well.
Thermowood and barrel form: use, character and care
The N 250 is made from FSC®-certified heat-treated wood. Thermal treatment reduces moisture uptake and improves dimensional stability, which is useful for an outdoor sauna exposed to changing humidity and temperatures. It does not make the wood maintenance-free or replace proper installation. Standing water, a poorly ventilated underside and unsuitable cleaners can harm surfaces and, over time, the structure. A suitable base, reliable drainage, airflow below the sauna and routine care all matter.
The rounded barrel profile affects site planning as well as appearance. Because the exterior curves at the sides, reserving a simple rectangle matching the outside dimensions is not sufficient. Leave working and maintenance space around the sauna, ensure doors can open fully, and keep important components accessible after assembly. Thermowood can complement timber decking, natural stone or a clean-lined landscape, but practical and technical needs should decide the final position.
Thermowood remains a natural material with individual colour and grain variation. UV exposure and weather can alter its original shade over time. Whether to accept this natural ageing or treat exterior surfaces is a choice between the look you want and the maintenance involved. Use only products intended for the wood and the particular application, following their instructions.
Choose heating to suit interior volume and equipment
Before ordering, confirm which heating configuration is offered for the N 250. An electric version is available. An electric heater suits users seeking controllable heat where the required electrical supply can be professionally arranged. Preference alone is not decisive: use the approved combination of heater, controls and any accessories for this sauna, and follow the relevant manufacturer installation requirements.
Interior volume is a key starting point for heater selection. Construction, door areas and the installation specified for the model can also matter. Do not rely on a general rule of thumb; verify the heating solution intended for your ordered N 250 version. Confirm whether controls, sauna stones and every component needed for installation are included, so assembly is not followed by a delay caused by missing or incompatible parts.
Have all electrical connections completed by a qualified local electrical contractor. Ask the contractor to follow the manufacturer’s instructions and verify the destination approval required for the heater model, along with the electrical requirements that apply to the site. The supply, protection, cable routing and connection area must suit the selected version. Keep unprotected cables away from walking routes and places where water may collect. Include lighting and other electrical loads in the overall plan rather than relying on temporary additions later.
Prepare the base, access route and surroundings carefully
The N 250 requires a permanently level, load-bearing base appropriate to its construction. It must support the sauna’s own weight as well as the heater, stones, equipment and users. An uneven or yielding base can place stress on the structure and affect door operation. Complete and check the base before delivery and assembly, following the installation requirements instead of packing out height differences with leftover materials during construction.
Rain and meltwater must drain away from the site in a controlled manner. Moisture must not remain beneath the timber structure; even treated wood should not stand in water for extended periods. Consider runoff from roofs, paved paths and higher garden areas, not only light rain. Airflow beneath the sauna helps drying, while the foundation must remain stable through washout, frost movement and changing ground. Seek professional advice where soil conditions are uncertain.
Allow clear movement space around the entrance. The route to the sauna should remain safe in darkness and wet weather, when users may have damp feet between sessions. Avoid trip edges, loose stepping stones and finishes that become very slippery. Account for the door’s opening direction and full swing. The N 250 must remain accessible externally for cleaning, inspection and maintenance; tight fencing, walls or dense planting can hinder wood care and airflow.
Ventilate, clean and care for timber surfaces
Steam, breathing and wet skin leave moisture inside after every sauna session. Allow time for ventilation and complete drying, using the designed ventilation openings and the operating instructions. A damp, closed interior can develop odours and unwanted deposits. Do not alter components or cut additional openings into the structure. Keep the intended ventilation system clear of cladding and stored items.
Use suitably large sauna towels on seats and loungers to reduce direct sweat contact with the wood. Remove used towels, robes and floor mats from the sauna and changing room afterwards. Inspect barrel bands, visible fixings, the door, hardware and seals regularly. Do not tighten every connection as a precaution; instead, look for changes and address identified issues according to the assembly and care instructions.
A soft cloth, suitable brush and wood-safe cleaner are often enough. Test a new product sparingly in an inconspicuous spot before treating larger areas. Clean only cooled surfaces and let the interior dry fully afterwards. Avoid aggressive chemicals, heavily scented household cleaners and pressure washers, which can roughen surfaces, leave residues or force water into joints. Remove dust and loose dirt from less visible areas without soaking technical components. Follow care guidance for stubborn marks rather than heavily sanding one spot and creating an uneven finish.
Clarify contents, transport route and site conditions early
Review your selected configuration item by item. Heater, controls, sauna stones and other technical equipment may depend on the offered version. Your order confirmation defines the supplied contents, not a product photograph or another model variant. Identify work required on site and components needed during assembly so the foundation, electrical preparation and build can be coordinated. If you enquire about assembly, ask what must be ready on the agreed day and which preparatory work is excluded.
The route from unloading point to final location needs its own plan. Measure gates, passages and narrow garden paths, allowing for stairs, tight turns, canopies, branches and delicate surfaces. Finished sauna dimensions do not automatically show the space required to move delivery or assembly elements. Ensure access is clear and sufficiently load-bearing on delivery day. Do not take vehicles or heavy parts over utility chambers, buried installations or weak surfaces without checking.
Depending on the property and selected equipment, local building, setback or electrical requirements may apply. Identify your province or territory and municipality, then check zoning, permits, structural design and services with the local permit office and qualified trades before proceeding. A compact sauna is not automatically exempt from review. Property lines, existing buildings, buried services and local requirements can affect the chosen site. See sauna planning and installation for further preparation advice.
Frequently asked questions about the Bloomcabin N 250
Can the changing room be used as permanent storage?
No. The changing room is a transition space, not permanent storage. Shoes, dry towels and robes may be kept handy during a sauna session. Remove damp textiles and floor coverings afterwards and dry them fully. Ventilate the changing room with the sauna cabin so moisture does not build up.
Can the N 250 be installed on an existing patio?
Only if the patio is level, permanently load-bearing and structurally suitable. The visible finish is not enough; the supporting structure must also carry the sauna, heater, stones, equipment and users. Have this assessed professionally before installation. Drainage and airflow beneath the timber construction must work as well. An existing patio is therefore not automatically a suitable base.
What should I do if the door suddenly becomes difficult to close?
Do not tighten all connections as a precaution. First check whether the base, door hardware or visible fixings have changed, then follow the assembly and care instructions. A base that is no longer level can cause the issue, as can a needed door adjustment. Have the structure assessed professionally if the cause is unclear.
Can the specified heater simply be replaced with another model?
Not without checking first. The sauna, heater, controls and installation clearances must work together as an approved combination. Similar appearance or dimensions do not automatically make another unit suitable. Before making changes, review the information for your ordered N 250 and discuss the intended components with the supplier or qualified local professional.
What if the site can only be reached through the house?
Confirm feasibility before ordering. Consider not only the external dimensions of the assembled sauna, but also the size and handling of delivery and assembly elements. Measure doors, passages, stairs, tight turns and covered areas along the full route. Record the narrowest points so the route can be assessed before delivery day. Note delicate floors and weak surfaces too, so suitable protection and moving measures can be arranged in advance.
When should an electrical contractor be involved in planning?
Ideally, involve a qualified local electrical contractor before the base is built and cable routes are set. This allows the supply, protection, routing and connection area to be planned for the chosen electric version. Have the contractor verify the manufacturer’s instructions and the requirements that apply at the destination, then complete the work accordingly. Early planning also avoids unnecessary changes to the finished base.
Can the same wood-care product be used indoors and outdoors?
No, not as a general rule. Exposed exterior surfaces and seating or lounging surfaces in a warm interior have different needs. Use products explicitly suitable for both the existing wood and the intended application. A generic wood-care label is not enough. Unsuitable coatings can create odours in heat or change the feel of the surface. Select and apply indoor and outdoor products separately, following their individual application and drying instructions.
When does this model suit your garden and sauna routine?
The N 250 is a strong choice for customers seeking a spacious thermowood barrel sauna with a changing room and intending to use that extra room. It is especially suitable for regular sessions by two people or a small group, where a sheltered entrance is wanted and the site has room for a foundation, access and maintenance. If you usually sauna alone and have very limited space, a smaller model may meet your needs just as well. The best choice comes from matching use, property and technical preparation—not simply selecting the largest interior.
If the style or size is still undecided, compare the N 250 with other Bloomcabin outdoor saunas and barrel saunas.
Checklist before ordering
✓ Exterior dimensions plus door, assembly and maintenance space marked out at the site
✓ Bench area and interior height checked against the actual users
✓ Level, load-bearing base and controlled drainage planned
✓ Heating configuration and electrical preparation professionally coordinated
✓ Order contents and customer-provided site work fully reviewed
✓ Vehicle access, transport route and local requirements clarified in good time
View the Bloomcabin N 250