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Energy savings
Will a Higher SEER Save You Money? The Real Math
How much a higher-SEER air conditioner actually saves on your bill, the formula linking SEER to annual cost, a cost-by-rating comparison, and the payback math that decides whether the upgrade is worth it.
SEER vs SEER2: What Changed and Does It Actually Matter?
SEER2 replaced SEER as the federal efficiency standard in 2023. What changed, how to convert between them, and whether the difference matters when buying.
Is a 95% AFUE Furnace Worth the Extra Cost?
Compare 80% vs 96% AFUE furnaces on fuel cost, payback period, and 15-year total cost. Worked examples for cold and mild climates at different gas prices.