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.
How Much Does a New HVAC System Cost in 2025?
Installed cost ranges for central AC, furnaces, heat pumps, and full systems in 2025 by size, efficiency tier, and region. What drives the price up or down.
Markup vs Margin: How HVAC Contractors Should Price Jobs
The difference between markup and margin, why most HVAC contractors underprice jobs, and how to calculate the right selling price to hit your target profit.
HVAC Static Pressure: How to Test It and What the Numbers Mean
How to measure total external static pressure (TESP), the normal range for residential systems, and how high or low readings point to specific duct and equipment problems.