Our Residential Slim Series Energy Recovery Ventilation System units are the perfect blend of efficiency and compact design, ideal for modern homes where space is at a premium. These units are engineered to maintain optimal indoor air quality by continuously exchanging stale indoor air with fresh outdoor air while recovering up to 90% of the heat or coolness, significantly reducing heating and cooling costs.

Their slim profile allows for easy installation in tight spaces such as utility closets or under stairs, without compromising on performance. With advanced filtration technology, they effectively remove dust, pollen, and other pollutants, ensuring a healthier living environment for you and your family. The quiet operation of these units guarantees undisturbed comfort, making them an essential addition to any energy-conscious household.

Holtop is the leading manufacturer in China that specializes in air to air heat recovery equipment. Since founded in 2002, it is dedicated to the research and technology development of heat recovery ventilation and energy saving air handling equipment for more than 20 years.

Holtop headquarters is located at the foot of Beijing Baiwang Mountain, covering area of 30,000 square meters. The manufacturing base is in Beijing's Badaling Economic Development Zone, covering an area of 60 acres. As a well-known manufacturer in the field of heat recovery, its laboratory has passed national authoritative certification, and has a strong R&D team and dozens of national invention patents, participated in the compilation of multiple national standards, and is selected as a National High-Tech Technology Enterprises.

Holtop has mastered the core technology of heat recovery, independently developing products like plate and rotary heat exchangers, various heat & energy recovery systems and air handling units. Products have been exported to more than 100 countries and regions.

Holtop cooperates with world famous brands or offer OEM service including Hitachi, LG, McQuay, TRANE, Systemair, Aldes, Haier, Gree, MHI Group, Midea, Carrier, etc., and has provided equipment for national projects many times including 2022 Winter Olympics, Wuhan Cabin Hospitals, World Expo Exhibition, etc. Holtop continuously ranks the top in domestic market of heat and energy recovery ventilators.

Slim series ventilation are designed specially for the projects which have very strict ventilator height requirement, compared with the traditional congeneric products, ECO Vent Pro ERV's height is 20% off. Access door is at the bottom so maintenance is much easier.