RECUBOX® X-POOL HRV 450 – Chemically resistant recovery unit for swimming pools and aggressive environments
All-plastic version of RECUBOX®
Chemically resistant RECUBOX® suitable for swimming pools and the chemical industry
Absolute resistance to chlorine
Performance from 0 - 450 m3/h.
RECUBOX® X-POOL
RECUBOX® X-POOL is a premium chemically resistant heat recovery unit designed for air heat recovery in swimming pools, wellness centres, saunas, laboratories and industrial spaces with high humidity or the presence of mildly aggressive chemicals.
Design and material construction
The entire casing, heat exchanger, flanges, filter frame, holders and all external components are made of high-quality polypropylene (PP) – without metal parts and with maximum chemical resistance.
The material is extremely resistant to:
- chlorine and ozone in pool recirculation,
- acids and alkalis,
- solvents, alcohols and volatile organic compounds (VOC),
- salt mist and corrosive humidity.
The construction uses 100% welded joints – no glued seals and no leakage. All sealing elements are mechanically designed and are easy to replace.
Smooth hygienic walls allow easy cleaning and maintenance. The unit is designed to offer very low service requirements while maintaining a high hygiene standard.
Thanks to their robust construction, premium quality and maximum hygienic safety, our RECUBOX® units are part of a number of CTU projects, including the unique S.A.W.E.R. system, which UCEEB is developing for extracting drinking water from air.
Heat exchanger – RECUTECH EPOXY version
The unit is equipped with a heat exchanger in epoxy version, suitable for operation in more aggressive and corrosive environments.
- Corrosion resistance according to ASTM B117, tested in salt solution (NaCl 5% / 35 °C) for up to 1,000 hours
- High resistance to solvents – for example trichloroethylene (85 °C / 5 min) and tetrachloroethylene (120 °C / 30 min)
- Technical parameters corresponding to aluminium counterflow heat exchangers without epoxy coating

Installation and maintenance
- Fans are not part of the unit – they are installed directly into the duct system, saving space in the plant room.
- If needed, the fans can be replaced quickly without interfering with the main unit. RECUBOX® remains intact.
Better properties than all-stainless heat recovery
Thanks to the resistance of polypropylene, RECUBOX® X-POOL is, in selected applications, a very attractive alternative to all-stainless solutions. Even stainless steel may corrode over time and lose tightness in aggressive chemical conditions, while a quality PP construction maintains its long-term stability.
Perfect choice for
- Swimming pools, water parks, wellness centres and saunas – clean air heat recovery in environments with chlorine and high humidity
- Laboratories and fume hoods – heat recovery in mildly aggressive chemical environments
- Chemical plants and storage facilities, including filling stations
- Paint shops, galvanising plants and treatment facilities with corrosive vapours
- Agricultural buildings – for example environments with ammonia or silage gases
- Production and technological containers in corrosive and humid environments
Main advantages of RECUBOX® units
| Easy heat exchanger removal The heat exchanger can be removed from the unit very easily and quickly, literally in one move. |
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| Maximum hygiene Both the unit and the heat exchanger can be easily removed and thoroughly cleaned. The heat exchanger is certified with the ILH Berlin hygiene certificate and the RECUBOX® material is also suitable for demanding hygienic applications. |
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| Mechanical sealing without adhesives The heat exchanger is sealed in a groove without the use of adhesives or adhesive tapes, which degrade over time. The seal can be easily replaced if needed. |
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| No screws, rivets or adhesives RECUBOX® is made from a single material using hot-gas welding technology. The result is absolutely tight joints without degradation caused by ageing. |
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| Wide size range Thanks to the broad range of sizes, we can design a suitable RECUBOX® even for spaces with limited installation options. |
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| Compatibility with RECUTECH heat exchangers RECUBOX® X-POOL units are designed for the complete RECUTECH heat exchanger range in EPOXY version certified by EUROVENT. |
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| Wide performance range RECUBOX® units cover a broad range of applications, from smaller installations to large technological operations. |
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| Maximum flexibility The positioning of inlet and outlet spigots can be configured in a very wide range of variants according to the specific application. |
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| Mirror configuration All variants are also available in mirror configuration. Condensate drainage is provided by a 1/2" threaded connection and is installed in two positions. |
Additional practical advantages
Easy installation thanks to prepared mounting holes for threaded rods.
Large-surface filters allow the use of any filter media. In the standard version, the unit is equipped with filter media of class M5.
100% By-pass is available as a shortcut section or as an integrated version with the possibility of servo actuator control.
Pressure drop chart
Pressure drop PD [Pa] versus air volume flow AV [m³/h] – heat exchanger REC+95-1000-31 EPOXY
Internal/external air ratio 1:1, outdoor air temperature -3 °C and relative humidity 90%, indoor air temperature 25 °C and relative humidity 60%. Results are based on calculation software certified by the European Eurovent association.

Efficiency chart
Efficiency EFF [%] versus air volume flow AV [m³/h] – heat exchanger REC+95-1000-31 EPOXY
Internal/external air ratio 1:1, outdoor air temperature -3 °C and relative humidity 90%, indoor air temperature 25 °C and relative humidity 60%. Results are based on calculation software certified by the European Eurovent association.

Connection port configuration options
Selection is made during the ordering process.
Front view of the RECUBOX® with the door open.
All dimensions are listed without insulation. If dimensions need to be significantly modified due to larger connection ports or other technical requirements, you will be informed after placing the order.
Data sheet
- EUROVENT certification:
- YES
- Material
- SIMONA AlphaPLUS - POLYPROPYLENE
- Operating temperature [°C]
- -20 .. +80
- Country of origin
- CZ
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