The overall service life of household heat pumps is significantly affected by their type, quality, installation, and maintenance. A standard air-source heat pump has a designed service life of approximately 10 to 15 years, which can be extended to 15 to 20 years with proper maintenance. Ground-source and water-source heat pumps operate under more stable conditions, with a service life of 20 to 25 years, and can even last 25 to 50 years if well maintained. Commercial, swimming pool, and drying heat pumps have a service life of about 8 to 12 years due to long-term high-load operation, which can be prolonged to 12 to 15 years after maintenance.
Key influencing factors include the quality of core components such as compressors and heat exchangers; construction techniques including refrigerant charging and pipeline installation; harsh operating environments such as low temperatures, high humidity, and salt spray; as well as regular cleaning, descaling, and inspection.
Generally, the probability of equipment failure increases after 10 years of use, and energy efficiency drops significantly around 15 years. Replacement may be considered if there is a sudden decline in heating and cooling capacity, a sharp rise in energy consumption, frequent failures, and high maintenance costs. Standardized installation and regular maintenance can effectively extend the service life of heat pumps by 3 to 5 years.
Kolant began to produce Heat pump since 2006, most of them are still working stable more than 20 years.
