What is Heating Recovery Unit(HRV)?
Heat recovery ventilation (HRV), also known as mechanical ventilation heat recovery (MVHR), is an energy recovery ventilation system which works between two sources at different temperatures. Heat recovery is a method which is increasingly used to reduce the heating and cooling demands (and thus energy costs) of buildings. By recovering the residual heat in the exhaust gas, the fresh air introduced into the air conditioning system is pre-heated (pre-cooled), and the fresh air enthalpyis increased (reduced) before the fresh air enters the room or the air cooler of the air conditioning unit performs heat and moisture treatment. A typical heat recovery system in buildings consists of a core unit, channels for fresh air and exhaust air, and blower fans. Building exhaust air is used as either a heat source or heat sink depending on the climate conditions, time of year and requirements of the building. Heat recovery systems typically recover about 60–95% of the heat in exhaust air and have significantly improved the energy efficiency of buildings .
NANYOO HRV Category
* Normal High Efficiency HRV
* Ultra-thin PM2.5 HRV
* Big Air Volume Commercial HRV
The Working Principle of HRV



Dimensions and Specifications
* The Normal HRV



* Ultra-thin PM2.5 HRV
- Feature
- Super motor, low noise and energy saving.
- 22cm thickness only, widely used in various site.
- High efficiency filter to purify 99.3% PM2.5.
- Reach 73% heating exchange rate.
- Crystal controller, luxury outlooks



* Big Air Volume Commercial HRV
- Feature
- Super motor, low noise, with overload protection device.
- Fillister chamfer air exist, easily installation of air duct.
- Independent maintenance door at side panel, convenient to change of motor and filter.
- Optimized air duct design to have sufficient air pressure and air volume.
- External insulation cotton and internal equipped with drain pan to prevent from condensing water.
- Internal acoustic cotton to reduce noise level.
- Hermitical design to prevent from air leakage and turbulent flow

- Air Volume 1500m3 - 2000m3

- Air Volume 2500m3 - 6000m3

We spend 70% of lifetime indoor ,Be kind to life and breathe fresh air