HRU Range: InAir™ 250ERU
The InAir™ range of highly efficient Energy Recovery Units are designed specifically for the UK market.
This series of ERV, with the latest European design, are molded from EPP, the latest eco-friendly material. Lighter, better insulated and quieter than traditional sheet metal models. They feature a special hexagonal heat exchange core-15% lower in height and over 8% higher in enthalpy efficiency than traditiona! square cores-saving over 20% energy in air.
With our optional smart control panel and multi-functional sensors, the system automatically adjusts fresh air operation based on indoor CO2, PM2.5, TVOC and other harmful gas levels and humidity, and offers interfaces to connect with intelligent constant temperature and humidity systems.
EPP Energy Recovery Ventilator
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Modern European-Inspired Design – Our EPP Energy Recovery Ventilator is built with the latest European engineering standards in mind. The housing is crafted from advanced, eco-friendly expanded polypropylene (EPP), offering a significant upgrade over traditional metal-cased ventilation systems. Its innovative design delivers outstanding benefits such as reduced weight, superior insulation, and ultra-quiet performance.
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High-Efficiency Energy Recovery – Effectively captures and reuses heat and moisture, reducing energy consumption for heating and cooling while maintaining a balanced and comfortable indoor climate.
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Sustainable EPP Construction – The durable EPP enclosure is lightweight yet robust, providing excellent thermal insulation and environmental sustainability.
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Whisper-Quiet Operation – Designed for minimal noise output, ensuring a calm and comfortable living or working space.
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Versatile Installation – Compact and adaptable for a variety of applications, making it ideal for both residential and commercial environments.
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Intelligent Control Options – Compatible with advanced sensors and smart systems for automated operation and optimized indoor air quality management.
General Features:
- Durable EPP enclosure is lightweight yet robust
- Suitable for domestic & commercial, schools, offices, surgeries etc.
- Low cost environment solution for pools and spa rooms.
- Slimline suspended ceiling or wall mounted supply & extract heat recovery unit.
- Airflow rate 250 M³H.
- Up to 90% efficient heat exchanger.
- Electric & LPHW water heater with control (Option.)
- ERP 2018 compliant and A+ energy rated.
- Spigot connection Ø160mm.
- 4 layers HEPA filter, up to 99% efficiency option.
- Internal acoustic fibre for noise reduction.
- Hi efficiency forward curved impellors.
Benefits of Heat Recovery Exchanger when used in conjunction with air conditioning;
Summer – when the HRU is used in the summer, the energy of the cold air discharged from the room is used to pre-cool the hot, ambient outside air before it enters the room
Winter - when the HRU is used in the winter, the energy of the warm air discharged from the room is used to pre-heat the cold, ambient outside air before it enters the room.
Mechanical Heat Recovery Ventilation for swimming pool and spa rooms
The benefits of these systems include providing fresh air ventilation, regulating humidity levels, maintaining a slight pressure difference between the spa/pool room and adjacent spaces to prevent moisture migration, ensuring full compliance with building regulations, offering low operational costs, and requiring minimal maintenance.
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Speed |
Power (W) |
Air Flow (m³/h) |
Air Pressure (pa) |
Noise (dB) |
|
High |
134 |
250 |
120 |
33 |
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Low |
76 |
120 |
170 |
35 |
Room Controller (Optional)
This unit is available with the G6 digital room controller- view here.
- Touch Screen Panel
- Timer and Clock
- 2 Speed Adjustment
- Displays Room Temperature and Humidity
- Displays TVOC*
- APP and WiFi control
*Volatile Organic Compounds or VOC are organic chemicals that become a gas at room temperature and are the main origin of air pollution at ground level.
Installation and Selection
Multiple standards define fresh air volume for healthy indoor air quality.
A typical rule of thumb for living spaces in UK dwellings is around 30 m³/h per person (≈ 8.3 L/s per person) for good indoor-air-quality design.
Installation (Ceiling-mounted total heat exchangers)
- Keep fresh air intake & exhaust ≥2m apart (prevent backflow).
- Install near the shortest duct run (reduce resistance).
- Add a power outlet nearby.
- Leave an access panel (front/ceiling) for maintenance.
Duct Design:
Verify duct air resistance with professionals. Follow HVAC standards: minimise duct length/
bends.