Energy Recovery Units
SupraBox COMFORT
SupraBox COMFORT energy recovery units are characterised by top performance and smart features. This makes it easy for you to find the right solution for your application.

SupraBox COMFORT energy recovery units are characterised by top performance and smart features. This makes it easy for you to find the right solution for your application.
Rosenberg SupraBox COMFORT energy recovery units are extremely space-saving and stand out above all for their high energy efficiency. They impress with their durable components, precise workmanship and state-of-the-art technology. Different versions with horizontal or vertical connections as well as ceiling units offer the right device for every installation situation. Removable doors (SupraBox COMFORT H and V) and easily accessible components make every service interval a breeze.

The SupraBox COMFORT units with horizontal (H) connections are available in three sizes with a nominal air flow rate of 1,000 m³/h, 1,600 m³/h and 2,000 m³/h.
SupraBox COMFORT H | 1000 H | 1600 H | 2000 H |
|---|---|---|---|
Nominal air flow rate | 1.000 m³/h | 1.600 m³/h | 2.000 m³/h |
External pressure increase | up to 200 Pa | up to 250 Pa | up to 500 Pa |
Connection Dimensions [mm] | 350 x 400 | 400 x 400 | 450 x 450 |
Dimensions (L x W x H) [mm] | 1700 x 702 x 1360 | 2120 x 737 x 1560 | 2385 x 797 x 1705 |

The SupraBox COMFORT units with vertical (V) connections are available in three sizes with a nominal air flow rate of 1,000 m³/h, 1,600 m³/h and 2,000 m³/h.
SupraBox COMFORT V | 1000 V | 1600 V | 2000 V |
|---|---|---|---|
Nominal air flow rate | 1.000 m³/h | 1.600 m³/h | 2.000 m³/h |
External pressure increase | up to 200 Pa | up to 250 Pa | up to 500 Pa |
Connection diameter [mm] | Ø280 | Ø355 | Ø400 |
Dimensions (L x W x H) [mm] | 1560 x 674 x 1365 | 2070 x 734 x 1585 | 2310 x 794 x 1710 |

The SupraBox COMFORT (D) is optimised for suspended installation in false ceilings or on the ceiling. It is available in two sizes with nominal air flow rates from 1,100 to 1,900 m³/h and integrated control.
Depending on the conditions on site, you can choose between a left-hand and a right-hand version for each size.
SupraBox COMFORT D | 1100 D | 1900 D |
|---|---|---|
Nominal air flow rate | 1.200 m³/h | 1.600 m³/h |
External pressure increase | up to 200 Pa | up to 400 Pa |
Connection Dimensions [mm] | Ø315 | 330 x 480 |
Dimensions (L x W x H) [mm] | 1804 x 1292 x 460 | 1710 x 1892 x 460 |
Get in touch with us or configure your SupraBox COMFORT yourself using our SupraBox SELECT selection programme.

SupraBox COMFORT energy recovery units impress across the board.
SupraBox COMFORT energy recovery units are manufactured in accordance with VDI 6022. The units have smooth surfaces (coil-coated inside and outside – RAL 7035) and are easy to clean.
The floor-standing units feature a sturdy, frameless housing with double-walled side panels made of 1 mm galvanized sheet steel (coated). The insulation thickness is 60 mm. The standard base frame with threaded feet not only ensures safe transport and installation but also optimal operation even on uneven surfaces with a slope of up to 15 mm. The enclosure characteristics comply with DIN EN 1886 T2 | TB2 | L1 | D1 | C4
The SupraBox COMFORT H is also available in a weatherproof version for outdoor installation. It features a weather protection canopy and short-circuit-proof covers, making it ideal for outdoor use.
The ceiling units feature a sturdy, frameless, double-walled housing. The inner and outer panels are made of 1 mm-thick, coil-coated, galvanized steel sheet. The 40 mm-thick insulation ensures high thermal and acoustic efficiency. Vibration-free operation is guaranteed. The housing characteristics comply with DIN EN 1886 T3 | TB3 | L1 | D2 | C4
Highly efficient counterflow heat exchangers made of corrosion-resistant aluminum, with an efficiency of up to 95%, are used for heat recovery. Complete separation of supply and exhaust air, without odor transfer, is ensured.
Moisture recovery is available on request.
As standard, the units are equipped with a fine dust filter of filter class ISO ePM1 ≥ 50% (formerly F7) on the supply air side and a filter of filter class ISO ePM10 ≥ 50% (formerly M5) on the exhaust air side. For special applications, a fine dust filter of filter class ISO ePM1 ≥ 80% (formerly F9) is available as an option. Space- and energy-saving panel filters are used. Quick-release rails allow for easy filter replacement and reduce the time required for maintenance.
The connections are sufficiently large. The connection dimensions correspond to the standard nominal widths used in the industry (round connections). Depending on requirements, versions with air supply on the left or right are available.
The connections are sufficiently large. The connection dimensions correspond to the standard nominal widths used in the industry (round connections for SupraBox COMFORT 1100 D; rectangular connections for SupraBox COMFORT 1900 D).
Free-running wheels with backward-curved centrifugal impellers and modern EC motors from our own production enable quiet and energy-efficient operation of the entire series.
The SupraBox COMFORT compact ventilation units come standard with an integrated control system; all internal components are fully wired at the factory. Optional CO₂, humidity, and temperature sensors enable energy-efficient, demand-based operation. Extensive control functions are already integrated into the software and can be easily activated as needed. A control panel for convenient adjustment of setpoints is included as standard.
The units are also available without integrated control on request.