Photo 703 of 1,429 in Wall Photos

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The key cog that powers your home's heating system is none other than the furnace. What is a furnace, exactly? Furnaces represent the "H" in HVAC (Heating, ventilation and air conditioning) systems, and they essentially work to heat air that can then be circulated throughout the ducts to every room of your home. Visit

Thomas Shaw's Album: Wall Photos