Established in 1999, Guangdong Tongyi Electrical Appliance Co., Ltd., which has integrated R&D, manufacturing, marketing and service, is one of the earliest and most professional manufacturers of heat pumps in China. We bring to the table over 20 years of experience in the domestic, commercial air source heat pump fields for customers. We are experts at what we do! We guarantee quality to our customers. You will be provided Tongyi quality, energy-saving, eco-friendly, healthy, safe and comfortable products has been certified by CCC, CE, RoHS and ETL authorizations. As a leader and one of the largest professional heat pump manufacturers in China, we have a complete industrial chain. Furthermore, a lot of quality suppliers have established strategic development partnership with us, such as Emerson, Sanyo, and Panasonic. Compared with other manufactures, we are given priority when purchasing most of the key material & parts.