More than 50% of today’s residential products contain electronic components and the list is growing. Most people only think of computers, TVs and VCRs when you mention electronic appliances, but many of the newer products, such as stoves, refrigerators and heating and cooling systems contain sophisticated electronic circuits.
Every small surge deteriorates the electronic components in this equipment, which can drastically shorten their designed life. The average home has 2,200 or more surges annually. These surges can be generated from a number of sources, such as heaters, dryers, garage door openers and motors starting on air conditioners, freezers, and well-pumps. Most of these surges are so small the average consumer does not see the damage they cause. However, your electronics take a constant "pounding." When a thunderstorm strikes, the electronic components may fail and you may think lightning caused the damage. In reality the product was already on the brink of failing because of the many constant low-level surges from your own equipment.
Whole-house protection with proper grounding and end-use protection for each piece of equipment will give you the best possible protection available.