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Direct current electricity. This type of electricity (as opposed to Alternating Current, or AC) flows in one direction only, without reversing polarity.
« Back to Glossary IndexDirect current electricity. This type of electricity (as opposed to Alternating Current, or AC) flows in one direction only, without reversing polarity.
« Back to Glossary IndexDiscover why regular furnace maintenance is essential for optimal performance & efficiency.
Learn about the factors to consider when selecting an air conditioning system.
Ensure your air conditioner is running smoothly with these helpful tips.