This tool provides an estimation of potential reductions in energy consumption and associated costs related to heating, ventilation, and air conditioning (HVAC) systems. It typically requires input parameters such as climate zone, building characteristics (size, insulation), system efficiency ratings (SEER, HSPF, AFUE), and energy prices to generate an output showing projected savings under various conditions or after implementing energy-efficient upgrades. For example, a homeowner considering replacing an aging air conditioner with a higher SEER model can use such a tool to estimate the annual savings they might realize.
The importance of these estimations lies in their ability to inform decision-making regarding HVAC system selection, maintenance, and upgrades. Understanding potential savings can justify the initial investment in more efficient equipment, contribute to lower utility bills, and reduce the environmental impact through decreased energy demand. Historically, these calculations were performed manually using complex formulas and assumptions. The advent of user-friendly online tools has made these estimations more accessible to a wider audience, including homeowners, building managers, and HVAC professionals.