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OTSO
OTSO
Roof cowl
Roof cowl
OTSO roof hoods for exhaust and inlet air represent Scandinavian design and have been tested in the challenging Nordic climate conditions. Together with KONTIO roof hoods they form an elegant entity with a unified style; the OTSO roof hoods always have a round interface. The roof hoods have a rectangular form – a groove in the middle strengthens the outer shell and gives the construction an exceptionally solid structure. Structural heights are very low, which reduces wind loads and enhances their appearance; a horizontal groove in the middle provides a visual break on the otherwise uniform structure, making the roof hoods look even shallower. The surface treatment of Climecon’s roof hoods meets corrosivity class C4, well sustaining the toughest climatic conditions.
Version
exhaust (U) and inlet (S)
Form
rectangular, shell reinforced by a groove
Downloads
Czech translations manufacturer originals
Design & BIM
Low profile, Scandinavian design
Very low structural height and a horizontal groove reduce wind loads and give the hood a slender, elegant appearance.
Exceptionally solid construction
A groove in the middle reinforces the outer shell and ensures an exceptionally rigid, robust structure.
Corrosivity class C4
The surface treatment meets corrosivity class C4 and withstands the toughest climatic conditions.
OTSO-U for exhaust air
At a low pressure loss it fulfils the required air velocity and directs the exhaust air only upwards. Note: if the exhaust is off in winter, accumulated snow and ice must be removed so their weight does not damage the structure.
OTSO-S for inlet air
Air is drawn in from the sides and the underside. Flow velocity after the outer shell is very low, producing a 100 % separation rate and effectively preventing snow from entering.
Optional fire resistance EI30/EI60/EI120
The hood can be fitted with a fire-rated roof transition KL30/KL60/KL120 (class EI30, EI60 or EI120). PAROC Hvac Fire Slab (60 mm) is used as fire insulation.
Three connection methods
The hood connects via a rain cover (S), a flange (L) or a male connector (T, only Ø < 500 mm). The rain cover is factory-made to fit the outlet, so all seams between the hood and the cover are reliably sealed against moisture.
Factory-made roof transition
The Climecon roof transition is factory-made, sheltered from the weather and designed for the specific connection method. It is fixed to a load-bearing roof structure with the included L lists (80×80×15); the upper connection always matches the hood, the lower one is chosen separately.
EPD-verified carbon footprint
The carbon footprint of the roof hoods has been calculated as part of the EPD environmental product declaration.
Product code
Example OTSO–U–630–ZN–S–Ma–KL60–L: 1) Climecon roof hood type; 2) air flow direction (U = exhaust, S = inlet); 3) connector size; 4) material (ZN = galvanized, HST = stainless, Ma = painted steel); 5) connection (S = rain cover, L = flange, T = male connector); 6) painting (state colour and film thickness); 7) roof transition (KL30/KL60/KL120 = EI30/EI60/EI120); 8) lower transition connection (L = flange, S = male connector, IT = coupling). The first five points define the model.
Manufacturer diagrams
Acoustic curves, dimensions, quick selection and airflow pattern from the manufacturer.
Technical parameters
| Version | exhaust (U) and inlet (S) |
| Form | rectangular, shell reinforced by a groove |
| Air velocity (U) | 4–14 m/s |
| Pressure loss (U) | < 100 Pa |
| Pressure loss (S) | max. 40 Pa |
| Face velocity (S) | max. 2 m/s |
| Duct velocity (S) | 2–5 m/s |
| Separation (S) | 100 % |
| Corrosivity class | C4 |
| Material | galvanized steel (ZN) stainless (HST) painted steel (Ma) |
| Connection | rain cover (S) flange (L) male connector (T) |
| Fire class (optional transition) | EI30 EI60 EI120 |
| Fire insulation | PAROC Hvac Fire Slab, 60 mm |
| Sizes | 800×300 – 1800×1000 |
Materials and colours
Price list
| Code | Variant | RRP excl. VAT | |
|---|---|---|---|
| 8636400 | OTSO-U 125 | €1,077.12 | |
| 8636422 | OTSO-S 125 | €1,077.12 | |
| 8636401 | OTSO-U 160 | €1,084.28 | |
| 8636423 | OTSO-S 160 | €1,084.28 | |
| 8636402 | OTSO-U 200 | €1,050.60 | |
| 8636424 | OTSO-S 200 | €1,050.60 | |
| 8636403 | OTSO-U 250 | €1,135.28 | |
| 8636425 | OTSO-S 250 | €1,135.28 | |
| 8636404 | OTSO-U 315 | €1,284.20 | |
| 8636426 | OTSO-S 315 | €1,284.20 | |
| 8636405 | OTSO-U 400 | €1,410.68 | |
| 8636427 | OTSO-S 400 | €1,410.68 | |
| 8636406 | OTSO-U 500 | €1,785.00 | |
| 8636428 | OTSO-S 500 | €1,785.00 | |
| 8636407 | OTSO-U 630 | €2,163.44 | |
| 8636429 | OTSO-S 630 | €2,163.44 | |
| 8636408 | OTSO-U 800 | €3,244.64 | |
| 8636430 | OTSO-S 800 | €3,244.64 | |
| 8636409 | OTSO-U 1000 | €4,627.76 | |
| 8636431 | OTSO-S 1000 | €4,627.76 | |
| 8636410 | OTSO-U 1250 | €6,186.32 | |
| 8636432 | OTSO-S 1250 | €6,186.32 |