Showing Posts From
Furnace
How Much Does Furnace Replacement Cost? (2026)
What a new furnace costs to install: price by size, fuel type, and AFUE efficiency, the factors that move the total, repair vs replace, and how to estimate your job.
Furnace Sizing Guide: What Size Furnace for My House?
Find the right furnace BTU for your home by climate zone and insulation with AFUE adjustment, worked examples, and why oversizing is the most common mistake.
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.