The answer to 'how often to replace heat pump' is that the average lifespan of a heat pump is 10-15 years. However, this can vary depending on factors like the quality of the unit, how well it's maintained, and the climate it's operating in. Proper maintenance and care can help extend the life of a heat pump, but eventually most will need to be replaced due to wear and tear.
Heat pumps are complex systems that require specialized knowledge to service and repair. While some minor maintenance tasks like cleaning the outdoor unit can be done by homeowners, it's generally best to have a professional HVAC technician perform regular tune-ups and inspections to ensure the system is running efficiently and safely.