Features of Aosun Heat Recovery Ventilator
- Provides balanced fresh air supply and exhaust ventilation to improve indoor air quality.
- Recovers heat energy in the exhaust air to reduce energy loss and improve efficiency.
- Designed for wall-mounted installation, it requires no pipes and is highly suitable for renovation projects.
- Operates with low noise and low power consumption, ideal for continuous household use.
- Helps to reduce humidity, condensation water, and stale air problems in enclosed living spaces.
Aosun | Professional HRV Manufacturer in China
As a professional Chinese manufacturer focusing on single-room HRV and decentralized heat recovery ventilation systems, Aosun integrates independent R&D and standardized mass production, especially renovation and retrofit industries. All our ductless single-room ventilation units pass strict CE, RoHS and SAA certifications to fully meet local market access standards. We offer diversified product lines to fit apartments, old residential buildings, hotels and basement retrofits. Equipped with automated production lines and complete quality inspection procedures, we guarantee stable product performance, low noise and high heat recovery efficiency. Our technical team provides tailored solutions for renovation contractors, distributors and engineering clients, supporting personalized casing design, parameter adjustment and brand labeling. Committed to eco-friendly, cost-effective ventilation for building retrofits, Aosun delivers reliable long-term supply and one-stop technical support to worldwide partners.
Compact round ductless HRV with smart control can provide easy airflow adjustment and low energy consumption.
The installation is simple and does not require large-scale wall drilling. It provide constant fresh air quality and recovers heat.
Compact heat recovery ventilator is suitable for small-sized apartments and narrow spaces in basements.
Pure white appearance, without duct installation, suitable for minimalist decoration style.
Retrofit Ventilation Challenge in Existing Buildings
In many apartments and renovated buildings, indoor air quality problems are very common due to insufficient ventilation. Common problems include mold growth, condensation on Windows, dirty indoor air, and high indoor humidity. These problems not only affect comfort but also impact the long-term durability of the building and the health of the occupants.
Why Retrofit Projects Need Single Room HRV
The traditional centralized ventilation systems and basic exhaust fans are no longer capable of meeting the actual construction and operation requirements of modern building renovations. The single room HRV has become an optimized solution for the four major core bottlenecks in renovations.
Unable to Reserve Air Duct Space in an Existing Building
Most of the old residential buildings, old-style apartments were not designed with pre-installed ventilation ducts. Due to the lack of reserved ceiling, wall, or corridor space to lay large-diameter ventilation ducts, the installation of a centralized fresh air system is difficult to achieve.
Air System Transformation Cost is High
Transforming a centralized HRV system with ducts requires extensive ceiling removal, wall reconstruction, pipeline installation. The material costs, labor costs, and project cycle costs result in the overall renovation budget being far beyond the scope of those for smaller-scale renovations.
Noise Problem of Traditional Exhaust Fan
When operating continuously, ordinary wall-mounted exhaust fans will generate airflow vibration and operating noise. This noise can disturb the daily lives of residents and guests in hotel rooms. It fails to meet the quiet requirements for high-standard residential and commercial spaces.
Air Exchange Efficiency in Sealed Rooms is Limited
The exhaust fan only discharges the polluted air inside the room and cannot provide fresh air input. The unbalanced ventilation will lead to negative pressure inside the room, restricted air circulation, and low efficiency of fresh air exchange, failing to solve the fundamental problem of air quality.
Single-Room HRV Decentralized Solution
The single-room HRV is a decentralized ventilation solution specifically tailored for building renovation and transformation projects, breaking through the limitations of traditional duct-type ventilation equipment:
No Need for Pipeline Engineering
The entire system does not require complex duct construction and piping layout. It adopts a simple through-wall installation, which eliminates the need for duct wiring, ceiling hole drilling, wall slotting, and embedded pipe construction. Just one small-diameter wall opening is required to achieve the assembly of the intake and exhaust vents.
Suitable for Completed Buildings and Renovation Projects
Ductless HRV system is adaptable to various fully occupied buildings, mid-term and later building renovation projects, as well as rooms that have been fully decorated. Installing decentralized HRV system does not require changes to the original interior decoration style, does not damage custom home decoration. Perfectly meets ventilation upgrade requirements for construction and renovation projects in various regions of the EU and the UK.
Balanced Supply and Exhaust Air Volumes
Single-room HRV system can achieve equal new air intake and exhaust air discharge. This decentralized HRV system supports independent ventilation control for each room, eliminating the indoor negative pressure problem caused by traditional exhaust fans. The balanced ventilation mode achieves efficient full-room ventilation while maintaining building sealing and ensuring the constant temperature performance of the building.
Energy Conservation
Efficiently achieve heat recovery between supply and exhaust air, without requiring additional power consumption. In winter, it can preheat the fresh air, and in summer, it can pre-cool the airflow, thereby reducing the burden on the indoor HVAC system. And it adopts EC motor, which complies with the EU ErP standards and the British green building energy-saving regulations. Reducing daily electricity consumption and carbon emissions, effectively lowering the long-term operating costs.
Application of Single-Room HRV
Apartment Renovation Project
Single-room HRV is designed for apartment renovation, upgrade, retrofit, as well as ventilation projects for residential buildings in the EU and UK regions. It effectively optimizes indoor air quality, eliminates indoor dampness, odors, and mold risks. It also realizes the upgrading of ventilation systems without damaging the decorated walls, custom furniture, and high-end interior decoration effects.
Renovation of Old Residential Buildings
Energy-saving renovations suitable for old residential communities. Through wall HRV can solve the indoor humidity, mold growth on walls, poor air quality, and insufficient natural ventilation issues. It enables centralized ventilation renovations for entire residential complexes. No large-scale demolition of buildings is required, and it complies with local renovation policies for old residences and green upgrade standards.
Hotel Renovation
Wall mounted HRV can effectively remove the odors from guest rooms, bathroom dampness, enclosed air, improving the overall indoor air quality and eliminating the stuffy indoor environment. No large-scale room renovations are required. It operates quietly and significantly enhances the comfort of guests and the service level of the hotel, and complies with commercial accommodation ventilation testing standards.
Basement Renovation
It has solved the problems such as high humidity, mold growth on walls, stagnant air circulation, and accumulation of underground odors caused by the lack of natural ventilation in the enclosed underground structure. It enables the safe and comfortable transformation of the basement into a rest bedroom, private storage room and entertainment area, achieving efficient utilization of underground space without the need for large-scale renovation of ventilation ducts.
Why Choose Aosun Single-Room HRV
Aosun has reliable and stable production capabilities, with a standardized production line and ample inventory. We support the delivery of large-scale engineering orders, ensuring stable product quality and consistent batch performance. Aosun also offers flexible OEM/ODM customization services, supporting personalized appearance adjustments, parameter optimization, brand logo customization, and the development of functional modules to meet the individual needs of brand distributors and project clients. Our single-room HRV has CE and RoHS international certifications, fully meeting the EU electrical safety, environmental protection requirements, and the mandatory standards for market entry in the UK. Contact us to obtain the latest quotations and customized ventilation solutions.
The equipment can be installed by simply making a small hole in the wall and then passing it through. There is no need for ceiling installation, wall removal, ventilation pipe laying, and it will not damage the original wall, soft furnishings or cabinet. The construction period is short, the dust is minimal, and there will be almost no traces of renovation after completion.
Each room is configured separately according to its function. A one-bedroom and one-living-room apartment usually requires 2 units, while a two-bedroom and one-living-room apartment needs 3 units. And additional units can be added for the kitchen and bathroom as needed. The bedrooms are prioritized for layout to ensure independent ventilation in each enclosed room. For small-sized apartments, only the bedrooms should be installed. For larger apartments, it is recommended that you install separate rooms throughout the house.
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-mounted 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. It can be installed and used normally in standard home decoration and building walls.
Each heat recovery ventilation is independent and cannot be connected to each other. However, multiple units can be arranged synchronously in the same room. Each unit independently completes the ventilation and exhaust in its own room without interfering with each other. Multiple units are separately controlled for bedrooms and living rooms, allowing for individual on/off and adjustment of settings, flexible zoning ventilation. The construction is simple and it is suitable for the needs of step-by-step renovation in different areas.
Single room HRV has an independent control panel and does not require a central control system. Each unit can independently adjust the speed and start/stop. You can operate the equipment in individual rooms independently as needed. If you need unified control for the entire house, a simple centralized control panel can be selected to link multiple units.
Decentralized HRV system supports 24/7 stable operation. Equipped with durable EC motors, it is less easy to overheating during long-term operation. Continuous ventilation can stably control indoor humidity, eliminating mold and condensation. Suitable for long-term sealed apartments, basements, and hotel guest rooms to be kept on all year round. The equipment comes with overload protection, resulting in a low failure rate during long-term use.
The maintenance operation is simple. You just need remove the filter screen, wash it, dry it, and then reinstall it. The heat recovery core does not need to be replaced frequently. It can be deeply cleaned once a year. There are no complex pipelines, and there is no problem of dust accumulation or mold growth in the pipes. Ordinary residents can complete all the maintenance by themselves.
Ordinary exhaust fans only exhaust air without bringing in fresh air, which can easily cause indoor negative pressure and heat loss. A single room HRV evenly distributes both supply and exhaust air, recovering more cold and heat energy, and is more energy-efficient. It continuously controls humidity and prevents condensation and mold growth. Exhaust fans cannot provide long-term ventilation for a house in a closed manner.
It is very suitable for phased renovation. There is no need for a complete renovation of the entire house at once. The bedrooms can be installed first, then the living room and basement can be added later. Each unit can be constructed independently without affecting each other. There is no need to simultaneously renovate the entire house. When the budget is limited, it can be added in batches to gradually improve the indoor ventilation conditions.
The design of the ductless heat recovery ventilator centers on silent operation, with an extremely low noise level. They feature an optimized motor and airflow structure, ensuring low noise during daily use and not disturbing daily rest or sleep. Therefore, they are highly suitable for installation in bedrooms, hotel rooms, and other quiet places with high noise requirements.
