Heating and cooling equipment (HVAC systems) have sensitive electrical components and need some kind of protection from electrical surges. Usually a single electrical surge can cause no obvious harm, but repeated surges will wear down the equipment, making replacements necessary years earlier than might be necessary otherwise.
Though lightning is the most recognized cause of electrical surges (Florida being the lighting capital of the country), electrical surges are actually most commonly a result from electric company and power lines, or high-power electrical devices such as vacuums, refrigerators and hair dryer powering on and off. A surge protector for the HVAC equipment will monitor the incoming volts of electricity, reroute the excess energy and shut down the cooling or heating equipment by cutting the flow of electricity if there’s a spike.
The surge protector is designed to keep the HVAC system safe by shutting it down, it will need to be restarted after a spike. Homeowners typically invest thousands of dollars updating their old HVAC systems for the most efficient units on the market. With so many causes and the high rate of electrical surges, investing an additional small amount for a surge protector could save the homeowner outrageous costs for repair or replacement if a piece of the equipment are damaged.