Features of Aosun Wall Mounted HRV
- Help reduce heating and cooling energy consumption while maintaining indoor comfort.
- Equipped with an efficient EC motor, it features lower power consumption, more precise speed control and longer operational reliability.
- Low operation noise, suitable for bedrooms, apartments, offices and other noise-sensitive environments.
- Supports customized voltage options, control systems, branding, packaging, and project-specific requirements.
Aosun | Professional Wall Mounted HRV Manufacturer in China
Aosun is a leading Chinese manufacturer specializing in wall-mounted heat recovery ventilation systems. Our aim is to provide efficient and continuous fresh air for residential and commercial spaces. Our compact through-wall HRV features an efficient ceramic heat exchanger and energy-saving EC motor, operates quietly, and recovers indoor heat, minimizing energy consumption to the greatest extent. With intelligent control functions, a double-layer filtration system, and a simple installation method, Aosun wall-mounted HRV is highly suitable for apartments, renovation projects, and small offices. We also offer flexible OEM/ODM services, customized airflow solutions, and international certifications to ensure reliable performance in your project.

Equipped with washable ceramic heat exchanger core for stable heat recycling and low residential ventilation energy loss.

Duct-free smart single-room wall HRV with ceramic heat core, delivering balanced fresh air and heat recovery for independent residential rooms.

Energy-saving wall mounted HRV adopting silent EC motor for long-efficiency and low-power residential ventilation.

Our WiFi-controlled heat recovery system allows remote management for smart, energy-efficient ventilation in modern buildings.
Indoor Air Quality Problems in Modern Buildings
Modern residential apartments and renovated buildings usually adopt closed interior decoration designs. Although this has advantages in improving insulation performance, it also causes indoor air pollution problems, which damage the living comfort, the health of residents, and the lifespan of the building.

Poor Indoor Air Quality
Closing windows for a long time without ventilation will cause the indoor space to continuously accumulate carbon dioxide. The exhaled carbon dioxide cannot be promptly discharged, and it combines with formaldehyde, TVOC, and unpleasant odors to form a turbid and unpleasant inferior air. Insufficient fresh outdoor air entering will cause you to experience dizziness, fatigue, decreased sleep quality, and reduced work efficiency.
High Humidity
Daily household activities such as bathing, cooking, and boiling water produce a large amount of indoor water vapor. If there are no targeted ventilation and dehumidification measures, the moisture will remain in the room. This causes window glass to condense, indoor walls to be damp, and even wall seepage. Living in a humid indoor environment for a long time will accelerate the reproduction of mold, fungi, and bacteria, damaging the indoor decoration and causing respiratory allergies.
Heat Loss
Most families rely on opening windows for natural ventilation in cold winters and hot summers. However, the indoor heated or cooled air will be directly discharged, resulting in significant waste of heat and cold energy in the building. This will increase the operating load of the residential central air conditioning and heating systems, significantly increasing the monthly operation cost of HVAC.
Why Traditional Ventilation Solutions are Not Enough?
The use of conventional ventilation equipment has many drawbacks, as it cannot simultaneously address the issues of fresh air supply, insulation performance, installation costs and space requirements.
Ordinary Exhaust Fans
The basic exhaust fans only achieve one-way discharge of indoor polluted air, lacking the accompanying intake system and heat recovery module. The table below compares their core shortcomings with those of wall-mounted HRV equipment:
| Ordinary exhaust fan | Wall-mounted HRV |
| Only discharges indoor polluted air | Two-way supply and exhaust circulation |
| Indoor heating/cooling heat loss | Efficient cross-heat recovery, reducing energy consumption |
| Does not provide filtered outdoor fresh air | Continuous supply of purified fresh air |
| Only has a single moisture discharge function | Integrated with air purification, humidity control and ventilation |
Natural Ventilation
Natural ventilation is the least costly temporary solution, but it is unstable. It is entirely dependent on weather conditions and cannot be used during heavy rain, strong winds, severe cold or extremely hot weather. Opening windows will allow outdoor traffic noise, construction noise to enter, as well as dust, pollen, insects and other pollutants to invade.
Limited Installation Space
Most apartments and renovation projects of old buildings do not reserve ceiling installation space. Traditional ventilation equipment is difficult to be smoothly arranged. However, the secondary duct renovation will damage the original indoor decoration and increase construction costs and project cycles, becoming a difficulty in building ventilation renovation.
Advantages of the HRV Systems

Aosun wall-mounted HRV heat recovery ventilator is specially designed for apartments, fully-finished residences, and building renovation projects. The wall-mounted design without ducts avoids the problems of insufficient space, energy waste, poor air quality, and high renovation costs
High-Efficiency Ceramic Heat Recovery Core
It adopts a washable ceramic heat exchanger core, featuring industry-leading heat recovery efficiency. It significantly reduces heat loss in building ventilation, alleviates the overall load of the HVAC system, achieves energy-saving ventilation, and meets the requirements of residential green energy-saving certification. The reusable core design reduces the maintenance and replacement costs for engineering projects in the later stage.
Energy-Saving EC Motor Technology
Incorporates a low-power brushless EC variable-frequency motor. Compared to traditional AC motors, daily power consumption is reduced by over 35%. Supports long-term 24-hour continuous stable operation, with improved anti-aging and high-temperature resistance performance.
Silent Operation
The internal structure of the air duct has been optimized and a sound-absorbing cotton design has been adopted for noise reduction. The operating noise is extremely low. It is suitable for scenarios where high noise reduction is required in residential or commercial areas. It does not cause any disturbance during nighttime sleep in bedrooms or in office areas. It has been certified for long-term indoor silent installation.
Double-Layer Filtration System
Equipped with a primary coarse filter and a high-efficiency fine filter, it can effectively intercept outdoor particulate dust, industrial pollutants, seasonal pollen, pet dander and impurities in the air. It fundamentally purifies the incoming fresh air, meeting your demands for a high-quality lifestyle.
Intelligent Control
The HRV system supports remote control, which reduces the complexity of use. You can also control the HRV by using the APP, which is more convenient and efficient. It has built-in sleep mode, automatic humidity adjustment mode and regular ventilation mode to enable intelligent management.
Applications of Wall Mounted HRV Systems

Apartment Renovation Project
The existing high-rise apartments do not have reserved ceiling cavities and ventilation pipe networks, making it impossible to install a central air conditioning ventilation system. The renovation budget and construction period are limited. However, using through wall HRV, there is no need to lay pipes, and the installation is simple and convenient.
Residential Bedroom
The sealed bedroom design leads to an increase in carbon dioxide concentration at night, hot and stuffy air. Opening the window would bring nighttime noise and temperature fluctuations. The single room HRV provides constant fresh air at a constant temperature throughout the night, without noise interference, and maintaining stable indoor oxygen content, optimizing the sleep environment.
Bathroom
After taking a bath, water vapor accumulates causes damp walls, moldy floors, and unpleasant odors. Ordinary exhaust fans cause heat loss in the bathroom during winter. Decentralized ventilation system adopts a continuous fixed-frequency dehumidification and deodorization exhaust mode, it recovers indoor heat while removing humid air, completely inhibiting mold growth.
Office Space
The long-term closed office environment leads to excessive carbon dioxide, lack of oxygen, employee fatigue, and low work efficiency. Dust accumulation affects indoor office equipment. Continuous low-flow fresh air supply throughout the day, dual air purification, stable indoor air quality, keeps the closed family office fresh all day.
Small Commercial Service Space
Small commercial space is limited. The indoor crowd density leads to poor air quality. Poor ventilation affects customer comfort. Single room HRV adopts a compact wall-mounted layout, it does not occupy commercial usage area, achieving balanced indoor air exchange, improving the indoor environment, and enhancing customer experience.
Why Choose Aosun Wall Mounted HRV?
Aosun is dedicated to providing reliable heat recovery ventilators and professional ventilation solutions to global customers. Aosun has over ten years of experience in manufacturing ventilation products, ensuring that every heat recovery fan it produces has reliable performance. Our factory is equipped with multiple industrial lines, which can ensure stable supply and efficient production capacity. Moreover, we offer flexible OEM/ODM services and can customize the product’s appearance, functions, voltage, markings and other elements according to your project requirements. Aosun provides comprehensive support for your project.
The wall-mounted heat recovery ventilator is a non-piped fresh air device that can simultaneously achieve indoor and outdoor air exchange and recover heat. It can improve the air quality in enclosed spaces, remove stale air and moisture, reduce the growth of mold, significantly reduce energy consumption for heating and cooling during ventilation, and balance the health of residents and energy conservation of buildings. It is the preferred solution for residential ventilation.
The equipment operates in both directions. Firstly, the polluted air inside the room is drawn into the machine, flows through the heat exchange core to retain the heat, and then is discharged outside. The fresh air from outside is sucked in, absorbs the recovered heat, is filtered and purified, and then sent back into the room. The entire process integrates air circulation, heat recovery, and new air purification.
The wall-mounted heat recovery ventilator is suitable for regular walls. The recommended thickness of the wall is between 150 millimeters and 400 millimeters, which can meet the requirements for wall penetration installation.If the wall is too thin, it will affect the structural stability and sealing effect. if it is too thick, it will increase the construction difficulty.
No. The greatest advantage of the wall-mounted HRV is its pipeless design. It is directly installed through the wall and serves a single room or open area independently. Unlike the central ventilation system, it does not require ceiling space, ducts, or complex piping layouts. Installation is simple and it does not damage the interior decoration.
The replacement frequency of the filter screen depends on the air quality. Generally, we recommend you to replace it every 3 to 6 months.In dusty areas, more frequent replacement may be required. The replacement process is very simple. You can open the front panel by yourself to remove the filter for cleaning or replacement.
Yes. The wall-mounted HRV is specifically designed for continuous operation. It is equipped with an efficient and energy-saving EC motor, and the power consumption during 24-hour continuous operation is low. Continuous operation ensures that the indoor carbon dioxide and humidity levels remain at healthy levels, avoiding the air quality fluctuations caused by intermittent ventilation.
It’s very suitable. You only need to make a hole in the wall to install the wall-mounted HRV. The construction period is short and the damage is minimal. For apartment renovations, old residential building renovations, and commercial space upgrades where central fresh air ducts have not been reserved, it is the most feasible solution for achieving heat recovery ventilation. It can significantly improve air quality without damaging the existing decoration.
With the efficient heat exchange core, most of the cold and hot energy can be recovered during the ventilation process. Compared with opening windows for ventilation or using ordinary exhaust fans, the overall energy consumption can be reduced by more than 30%. This effectively reduces the operating load of air conditioners and heating equipment, which can significantly save electricity costs and HVAC usage costs over the long term.
The product has obtained multiple international authoritative certifications, including CE and ERP, which are the mainstream safety and energy efficiency certifications in the EU. All performance and safety indicators comply with the overseas building and household appliance standards. The quality is in line with regulations, enabling it to be exported to multiple countries smoothly and meeting the qualification requirements for engineering procurement and overseas retail.
Under normal operation and regular maintenance conditions, the overall service life can reach 8 to 10 years. The core EC motor and ceramic heat exchange core have strong durability. Simple daily maintenance can ensure the long-term stable operation of the equipment, and the overall usage cost is relatively low.




