The answer to 'should I get furnace repair or' is to first consider whether your furnace needs repair or if it's time to replace it. Furnace repair is often the more cost-effective option if the issue is relatively minor, such as a faulty thermostat or a clogged air filter. However, if your furnace is more than 15 years old, has required frequent repairs, or is not heating your home efficiently, it may be time to replace it with a new, more energy-efficient model.
When deciding between repair and replacement, consider the age and condition of your furnace, the cost of repairs, and the potential energy savings from a new system. It's also important to work with a qualified HVAC technician who can assess your specific situation and provide a recommendation.