Replacing an aging heat pump can be a smart decision, especially if the unit is over 10 years old and suffering from reliability issues or poor performance. When planning for the future, homeowners should consider their recent ownership costs, including money spent on utilities and repairs. New models can lower heating and cooling costs by 20% to 50%. They're also quieter and provide superior humidity control. Consumers should think carefully before repairing an older unit. In the event of a catastrophic breakdown, it's often better to invest in a new installation when repairs equal half the cost of a new system.